@incollection{Feiser2015, author = {Feiser, Johannes}, title = {Geotechnik}, series = {Wendehorst Beispiele aus der Baupraxis. / 5. Auflage}, booktitle = {Wendehorst Beispiele aus der Baupraxis. / 5. Auflage}, publisher = {Springer Vieweg}, address = {Wiesbaden}, isbn = {978-3-658-01689-0 ; 978-3-410-24199-7}, doi = {10.1007/978-3-658-01681-4_14}, pages = {547 -- 598}, year = {2015}, language = {de} } @incollection{Strohmeier2015, author = {Strohmeier, Andreas}, title = {Siedlungswasserwirtschaft}, series = {Wendehorst Beispiele aus der Baupraxis. / 5. Auflage}, booktitle = {Wendehorst Beispiele aus der Baupraxis. / 5. Auflage}, publisher = {Springer Vieweg}, address = {Wiesbaden}, isbn = {978-3-658-01689-0 ; 978-3-410-24199-7}, doi = {10.1007/978-3-658-01681-4_16}, pages = {635 -- 678}, year = {2015}, abstract = {Nachfolgende Ausf{\"u}hrungen und Berechnungsbeispiele beziehen sich auf Kapitel 19 Siedlungswasserwirtschaft im „Wendehorst: Bautechnische Zahlentafeln 35. Auflage 2015" (abgek{\"u}rzt: BZ). F{\"u}r den Bau von Anlagen der Siedlungswasserwirtschaft sind ebenso die Grundlagen der Hydraulik zu ber{\"u}cksichtigen. Aus diesem Grunde sind auch die entsprechenden Ausf{\"u}hrungen zur Hydraulik zu beachten.}, language = {de} } @incollection{Biener2015, author = {Biener, Ernst}, title = {Abfallwirtschaft}, series = {Wendehorst Beispiele aus der Baupraxis. - 5. Aufl.}, booktitle = {Wendehorst Beispiele aus der Baupraxis. - 5. Aufl.}, publisher = {Springer Vieweg}, address = {Wiesbaden}, isbn = {978-3-658-01689-0 ; 978-3-410-24199-7}, doi = {10.1007/978-3-658-01681-4_17}, pages = {680 -- 723}, year = {2015}, language = {de} } @book{Vismann2012, author = {Vismann, Ulrich}, title = {Wendehorst Beispiele aus der Baupraxis / Ulrich Vismann (Hrsg.). - 4., durchges. und aktualis. Aufl.}, publisher = {Springer Vieweg}, address = {Wiesbaden}, isbn = {978-3-8348-0999-5 ; 978-3-8348-8229-5}, doi = {10.1007/978-3-8348-8229-5}, pages = {X, 653 S.}, year = {2012}, language = {de} } @article{BayonValeroGarciaBartualetal.2016, author = {Bayon, Arnau and Valero, Daniel and Garcia-Bartual, Rafael and Vall{\´e}s-Mor{\´a}n, Francisco Jos{\´e} and L{\´o}pez-Jim{\´e}nez, P. Amparo}, title = {Performance assessment of OpenFOAM and FLOW-3D in the numerical modeling of a low Reynolds number hydraulic jump}, series = {Environmental Modelling \& Software}, volume = {80}, journal = {Environmental Modelling \& Software}, publisher = {Elsevier}, address = {Amsterdam}, isbn = {1364-8152}, doi = {10.1016/j.envsoft.2016.02.018}, pages = {322 -- 335}, year = {2016}, abstract = {A comparative performance analysis of the CFD platforms OpenFOAM and FLOW-3D is presented, focusing on a 3D swirling turbulent flow: a steady hydraulic jump at low Reynolds number. Turbulence is treated using RANS approach RNG k-ε. A Volume Of Fluid (VOF) method is used to track the air-water interface, consequently aeration is modeled using an Eulerian-Eulerian approach. Structured meshes of cubic elements are used to discretize the channel geometry. The numerical model accuracy is assessed comparing representative hydraulic jump variables (sequent depth ratio, roller length, mean velocity profiles, velocity decay or free surface profile) to experimental data. The model results are also compared to previous studies to broaden the result validation. Both codes reproduced the phenomenon under study concurring with experimental data, although special care must be taken when swirling flows occur. Both models can be used to reproduce the hydraulic performance of energy dissipation structures at low Reynolds numbers.}, language = {en} } @book{LaumannWolf2024, author = {Laumann, J{\"o}rg and Wolf, Christian}, title = {Stahlbau 1 : Bemessung von Stahlbauten nach Eurocode mit zahlreichen Beispielen}, edition = {26., {\"u}berarbeitete und aktualisierte Auflage}, publisher = {Springer Vieweg}, address = {Wiesbaden}, isbn = {978-3-658-41323-1 (Print)}, doi = {10.1007/978-3-658-41324-8}, pages = {XVI, 661 Seiten}, year = {2024}, language = {de} } @phdthesis{Bung2023, author = {Bung, Daniel Bernhard}, title = {Imaging techniques for investigation of free-surface flows in hydraulic laboratories}, doi = {10.25926/BUW/0-172}, pages = {XXIII, 218 Seiten}, year = {2023}, abstract = {This thesis aims at the presentation and discussion of well-accepted and new imaging techniques applied to different types of flow in common hydraulic engineering environments. All studies are conducted in laboratory conditions and focus on flow depth and velocity measurements. Investigated flows cover a wide range of complexity, e.g. propagation of waves, dam-break flows, slightly and fully aerated spillway flows as well as highly turbulent hydraulic jumps. Newimagingmethods are compared to different types of sensorswhich are frequently employed in contemporary laboratory studies. This classical instrumentation as well as the general concept of hydraulic modeling is introduced to give an overview on experimental methods. Flow depths are commonly measured by means of ultrasonic sensors, also known as acoustic displacement sensors. These sensors may provide accurate data with high sample rates in case of simple flow conditions, e.g. low-turbulent clear water flows. However, with increasing turbulence, higher uncertainty must be considered. Moreover, ultrasonic sensors can provide point data only, while the relatively large acoustic beam footprint may lead to another source of uncertainty in case of relatively short, highly turbulent surface fluctuations (ripples) or free-surface air-water flows. Analysis of turbulent length and time scales of surface fluctuations from point measurements is also difficult. Imaging techniques with different dimensionality, however, may close this gap. It is shown in this thesis that edge detection methods (known from computer vision) may be used for two-dimensional free-surface extraction (i.e. from images taken through transparant sidewalls in laboratory flumes). Another opportunity in hydraulic laboratory studies comes with the application of stereo vision. Low-cost RGB-D sensors can be used to gather instantaneous, three-dimensional free-surface elevations, even in flows with very high complexity (e.g. aerated hydraulic jumps). It will be shown that the uncertainty of these methods is of similar order as for classical instruments. Particle Image Velocimetry (PIV) is a well-accepted and widespread imaging technique for velocity determination in laboratory conditions. In combination with high-speed cameras, PIV can give time-resolved velocity fields in 2D/3D or even as volumetric flow fields. PIV is based on a cross-correlation technique applied to small subimages of seeded flows. The minimum size of these subimages defines the maximum spatial resolution of resulting velocity fields. A derivative of PIV for aerated flows is also available, i.e. the so-called Bubble Image Velocimetry (BIV). This thesis emphasizes the capacities and limitations of both methods, using relatively simple setups with halogen and LED illuminations. It will be demonstrated that PIV/BIV images may also be processed by means of Optical Flow (OF) techniques. OF is another method originating from the computer vision discipline, based on the assumption of image brightness conservation within a sequence of images. The Horn-Schunck approach, which has been first employed to hydraulic engineering problems in the studies presented herein, yields dense velocity fields, i.e. pixelwise velocity data. As discussed hereinafter, the accuracy of OF competes well with PIV for clear-water flows and even improves results (compared to BIV) for aerated flow conditions. In order to independently benchmark the OF approach, synthetic images with defined turbulence intensitiy are used. Computer vision offers new opportunities that may help to improve the understanding of fluid mechanics and fluid-structure interactions in laboratory investigations. In prototype environments, it can be employed for obstacle detection (e.g. identification of potential fish migration corridors) and recognition (e.g. fish species for monitoring in a fishway) or surface reconstruction (e.g. inspection of hydraulic structures). It can thus be expected that applications to hydraulic engineering problems will develop rapidly in near future. Current methods have not been developed for fluids in motion. Systematic future developments are needed to improve the results in such difficult conditions.}, language = {en} } @article{Bung2024, author = {Bung, Daniel Bernhard}, title = {Kamerabasierte Fließtiefen- und Geschwindigkeitsmessungen}, series = {Wasserwirtschaft}, volume = {114}, journal = {Wasserwirtschaft}, number = {4}, publisher = {Springer Vieweg}, address = {Wiesbaden}, issn = {0043-0978}, pages = {47 -- 53}, year = {2024}, abstract = {In der wasserbaulichen Forschung werden neben klassischen Messinstrumenten zunehmend kamerabasierte Verfahren genutzt. Diese erlauben neben der Bestimmung von Fließgeschwindigkeiten auch die Detektion der freien Wasseroberfl{\"a}che oder zeitliche Vermessung von Kolken. Durch die hohen r{\"a}umlichen und zeitlichen Aufl{\"o}sungen, welche neueste Kamerasensoren liefern, k{\"o}nnen neue Erkenntnisse in turbulenten, komplexen Str{\"o}mungen gewonnen werden. Auch in der Praxis k{\"o}nnen diese Verfahren mit geringem Aufwand wichtige Daten liefern.}, language = {de} } @article{ZhangValeroBungetal.2018, author = {Zhang, G. and Valero, Daniel and Bung, Daniel Bernhard and Chanson, H.}, title = {On the estimation of free-surface turbulence using ultrasonic sensors}, series = {Flow Measurement and Instrumentation}, volume = {60}, journal = {Flow Measurement and Instrumentation}, publisher = {Elsevier}, address = {Amsterdam}, issn = {0955-5986}, doi = {10.1016/j.flowmeasinst.2018.02.009}, pages = {171 -- 184}, year = {2018}, abstract = {Accurate determination of free-surface dynamics has attracted much research attention during the past decade and has important applications in many environmental and water related areas. In this study, the free-surface dynamics in several turbulent flows commonly found in nature were investigated using a synchronised setup consisting of an ultrasonic sensor and a high-speed video camera. Basic sensor capabilities were examined in dry conditions to allow for a better characterisation of the present sensor model. The ultrasonic sensor was found to adequately reproduce free-surface dynamics up to the second order, especially in two-dimensional scenarios with the most energetic modes in the low frequency range. The sensor frequency response was satisfactory in the sub-20 Hz band, and its signal quality may be further improved by low-pass filtering prior to digitisation. The application of the USS to characterise entrapped air in high-velocity flows is also discussed.}, language = {en} } @inproceedings{BungOertelSchlenkhoffetal.2010, author = {Bung, Daniel Bernhard and Oertel, M. and Schlenkhoff, A. and Schlurmann, Torsten}, title = {Flash flood awareness and prevention in Germany}, series = {Early warning for flash floods : international workshop, Praha 2011 : workshop proceedings}, booktitle = {Early warning for flash floods : international workshop, Praha 2011 : workshop proceedings}, editor = {Obrusnik, Ivan}, organization = {Czech Hydrometeorological Institute}, isbn = {978-80-86690-91-9}, pages = {34 -- 40}, year = {2010}, language = {en} } @inproceedings{Bung2009, author = {Bung, Daniel Bernhard}, title = {Optimierung des potentiellen Sauerstoffeintrags auf Treppenschussrinnen mit gem{\"a}ßigter Neigung}, series = {9. JuWi-Treffen : Beitr{\"a}ge zum Treffen junger Wissenschaftlerinnen und junger Wissenschaftler deutschsprachiger Wasserbauinstitute}, booktitle = {9. JuWi-Treffen : Beitr{\"a}ge zum Treffen junger Wissenschaftlerinnen und junger Wissenschaftler deutschsprachiger Wasserbauinstitute}, editor = {Theobald, S.}, publisher = {Universit{\"a}t Kassel}, address = {Kassel}, pages = {73 -- 78}, year = {2009}, language = {de} } @inproceedings{BungValero2017, author = {Bung, Daniel Bernhard and Valero, Daniel}, title = {FlowCV - An open-source toolbox for computer vision applications in turbulent flows}, series = {Proceedings of the 37th IAHR World Congress August 13 - 18, 2017, Kuala Lumpur, Malaysia}, booktitle = {Proceedings of the 37th IAHR World Congress August 13 - 18, 2017, Kuala Lumpur, Malaysia}, issn = {2521-716X}, pages = {5356 -- 5365}, year = {2017}, language = {en} } @article{BungErpicumTullis2020, author = {Bung, Daniel Bernhard and Erpicum, S{\´e}bastien and Tullis, Blanke P.}, title = {Advances in hydraulic structures engineering}, series = {Journal of Hydraulic Engineering}, volume = {147}, journal = {Journal of Hydraulic Engineering}, number = {1}, publisher = {ASCE}, address = {Reston, Va.}, issn = {0733-9429 (Druckausgabe)}, doi = {10.1061/(ASCE)HY.1943-7900.0001851}, pages = {1 Seite}, year = {2020}, language = {en} } @article{Bung2011, author = {Bung, Daniel Bernhard}, title = {Fließcharakteristik und Sauerstoffeintrag bei selbstbel{\"u}fteten Gerinnestr{\"o}mungen auf Kaskaden mit gem{\"a}ßigter Neigung}, series = {{\"O}sterreichische Wasser- und Abfallwirtschaft}, volume = {Vol. 63}, journal = {{\"O}sterreichische Wasser- und Abfallwirtschaft}, number = {Iss. 3-4}, publisher = {Springer}, address = {Berlin}, issn = {1613-7566 (E-Journal); 0945-358X (Print)}, pages = {76 -- 81}, year = {2011}, language = {de} } @article{ValeroChansonBung2019, author = {Valero, Daniel and Chanson, Hubert and Bung, Daniel Bernhard}, title = {Robust estimators for turbulence properties assessment}, pages = {1 -- 24}, year = {2019}, language = {en} } @inproceedings{Bung2012, author = {Bung, Daniel Bernhard}, title = {Sensitivity of phase detection techniques in aerated chute flows to hydraulic design parameters}, series = {2nd European IAHR congress : 27. - 29. June 2012, M{\"u}nchen}, booktitle = {2nd European IAHR congress : 27. - 29. June 2012, M{\"u}nchen}, publisher = {Lehrstuhl u. Versuchsanst. f{\"u}r Wasserbau u. Wasserwirtschaft d. TU M{\"u}nchen}, address = {M{\"u}nchen}, organization = {International Association for Hydraulic Engineering and Research}, isbn = {978-3-943683-03-5}, pages = {Artikelkennnummer: B15}, year = {2012}, language = {en} } @article{HagenkampBlankeDoering2021, author = {Hagenkamp, Markus and Blanke, Tobias and D{\"o}ring, Bernd}, title = {Thermoelectric building temperature control: a potential assessment}, series = {International Journal of Energy and Environmental Engineering}, volume = {13}, journal = {International Journal of Energy and Environmental Engineering}, publisher = {Springer}, address = {Berlin}, doi = {10.1007/s40095-021-00424-x}, pages = {241 -- 254}, year = {2021}, abstract = {This study focuses on thermoelectric elements (TEE) as an alternative for room temperature control. TEE are semi-conductor devices that can provide heating and cooling via a heat pump effect without direct noise emissions and no refrigerant use. An efficiency evaluation of the optimal operating mode is carried out for different numbers of TEE, ambient temperatures, and heating loads. The influence of an additional heat recovery unit on system efficiency and an unevenly distributed heating demand are examined. The results show that TEE can provide heat at a coefficient of performance (COP) greater than one especially for small heating demands and high ambient temperatures. The efficiency increases with the number of elements in the system and is subject to economies of scale. The best COP exceeds six at optimal operating conditions. An additional heat recovery unit proves beneficial for low ambient temperatures and systems with few TEE. It makes COPs above one possible at ambient temperatures below 0 ∘C. The effect increases efficiency by maximal 0.81 (from 1.90 to 2.71) at ambient temperature 5 K below room temperature and heating demand Q˙h=100W but is subject to diseconomies of scale. Thermoelectric technology is a valuable option for electricity-based heat supply and can provide cooling and ventilation functions. A careful system design as well as an additional heat recovery unit significantly benefits the performance. This makes TEE superior to direct current heating systems and competitive to heat pumps for small scale applications with focus on avoiding noise and harmful refrigerants.}, language = {en} } @article{KerpenBungValeroetal.2017, author = {Kerpen, Nils B. and Bung, Daniel Bernhard and Valero, Daniel and Schlurmann, Torsten}, title = {Energy dissipation within the wave run-up at stepped revetments}, series = {Journal of Ocean University of China}, volume = {16}, journal = {Journal of Ocean University of China}, number = {4}, publisher = {Springer}, address = {Berlin}, issn = {1993-5021}, doi = {10.1007/s11802-017-3355-z}, pages = {649 -- 654}, year = {2017}, language = {en} } @article{ValeroBung2016, author = {Valero, Daniel and Bung, Daniel Bernhard}, title = {Development of the interfacial air layer in the non-aerated region of high-velocity spillway flows: Instabilities growth, entrapped air and influence on the self-aeration onset}, series = {International Journal of Multiphase Flow}, volume = {84}, journal = {International Journal of Multiphase Flow}, publisher = {Elsevier}, address = {Amsterdam}, issn = {0301-9322}, doi = {10.1016/j.ijmultiphaseflow.2016.04.012}, pages = {66 -- 74}, year = {2016}, abstract = {Self-aeration is traditionally explained by the water turbulent boundary layer outer edge intersection with the free surface. This paper presents a discussion on the commonly accepted hypothesis behind the computation of the critical point of self-aeration in spillway flows and a new formulation is proposed based on the existence of a developing air flow over the free surface. Upstream of the inception point of self-aeration, some surface roughening has been often reported in previous studies which consequently implies some entrapped air transport and air-water flows coupling. Such air flow is proven in this study by presenting measured air velocities and computing the air boundary layer thickness for a 1V:2H smooth chute flow. Additionally, the growth rate of free surface waves has been analysed by means of Ultrasonic Sensors measurements, obtaining also the entrapped air concentration. High-speed camera imaging has been used for qualitative study of the flow perturbations.}, language = {en} } @inproceedings{BungSchlenkhoff2010, author = {Bung, Daniel Bernhard and Schlenkhoff, Andreas}, title = {Self-aerated skimming flow on embankment stepped spillways : the effect of additional micro-roughness on energy dissipation and oxygen transfer}, series = {Proceedings from first IAHR European congress : May 2010, Edinburgh}, booktitle = {Proceedings from first IAHR European congress : May 2010, Edinburgh}, publisher = {Heriot-Watt University, School of the Built Environment}, address = {Edinburgh}, organization = {International Association for Hydraulic Engineering and Research}, isbn = {9780956595102}, pages = {Artikelkennnummer HSIIId}, year = {2010}, language = {en} } @inproceedings{ValeroBungCrookstonetal.2016, author = {Valero, Daniel and Bung, Daniel Bernhard and Crookston, B. M. and Matos, J.}, title = {Numerical investigation of USBR type III stilling basin performance downstream of smooth and stepped spillways}, series = {Hydraulic Structures and Water System Management. 6th IAHR International Symposium on Hydraulic Structures, Portland, OR, 27-30 June 2016}, booktitle = {Hydraulic Structures and Water System Management. 6th IAHR International Symposium on Hydraulic Structures, Portland, OR, 27-30 June 2016}, editor = {Crookston, B. and Tullis, B.}, isbn = {978-1-884575-75-4}, doi = {10.15142/T340628160853}, pages = {635 -- 646}, year = {2016}, language = {en} } @article{Bung2013, author = {Bung, Daniel Bernhard}, title = {Non-intrusive detection of air-water surface roughness in self-aerated chute flows}, series = {Journal of hydraulic research}, volume = {Vol. 51}, journal = {Journal of hydraulic research}, number = {Iss. 3}, publisher = {Taylor \& Francis}, address = {London}, issn = {1814-2079 (E-Journal); 0022-1686 (Print)}, pages = {322 -- 329}, year = {2013}, language = {en} } @techreport{HebelMerkensFeyerletal.2021, author = {Hebel, Christoph and Merkens, Torsten and Feyerl, G{\"u}nter and Kemper, Hans and Busse, Daniel}, title = {Elektromobilit{\"a}t - Verbundprojekt "COSTARTebus": Comprehensive strategy to accelerate the integration of electric-buses into existing public transport systems - Teilprojekt A : Berichtszeitraum: 01.01.2018-31.10.2020}, publisher = {Fachhochschule Aachen}, address = {Aachen}, pages = {219 Seiten}, year = {2021}, language = {de} } @article{Bung2021, author = {Bung, Daniel Bernhard}, title = {Extreme flooding in Western Germany: some thoughts on hazards, return periods and risk}, series = {Hydrolink}, journal = {Hydrolink}, number = {4}, publisher = {International Association for Hydro-Environment Engineering and Research (IAHR)}, address = {Madrid}, pages = {108 -- 113}, year = {2021}, abstract = {The low-pressure system Bernd involved extreme rainfalls in the Western part of Germany in July 2021, resulting in major floods, severe damages and a tremendous number of casualties. Such extreme events are rare and full flood protection can never be ensured with reasonable financial means. But still, this event must be starting point to reconsider current design concepts. This article aims at sharing some thoughts on potential hazards, the selection of return periods and remaining risk with the focus on Germany.}, language = {en} } @article{Bung2011, author = {Bung, Daniel Bernhard}, title = {Developing flow in skimming flow regime on embankment stepped spillways}, series = {Journal of hydraulic research}, volume = {Vol. 49}, journal = {Journal of hydraulic research}, number = {Iss. 5}, publisher = {Taylor \& Francis}, address = {London}, issn = {1814-2079 (E-Journal); 0022-1686 (Print)}, pages = {639 -- 648}, year = {2011}, language = {en} } @article{WoliszSchuetzBlankeetal.2017, author = {Wolisz, Henryk and Sch{\"u}tz, Thomas and Blanke, Tobias and Hagenkamp, Markus and Kohrn, Markus and Wesseling, Mark and M{\"u}ller, Dirk}, title = {Cost optimal sizing of smart buildings' energy system components considering changing end-consumer electricity markets}, series = {Energy}, volume = {137}, journal = {Energy}, publisher = {Elsevier}, address = {Amsterdam}, doi = {10.1016/j.energy.2017.06.025}, pages = {715 -- 728}, year = {2017}, language = {en} } @inproceedings{TullisCrookstonBung2019, author = {Tullis, Blake P. and Crookston, Brian M. and Bung, Daniel Bernhard}, title = {Weir head-discharge relationships: A multi-lab exercise}, series = {E-proceedings of the 38th IAHR World Congress September 1-6, 2019, Panama City, Panama}, booktitle = {E-proceedings of the 38th IAHR World Congress September 1-6, 2019, Panama City, Panama}, pages = {1 -- 15}, year = {2019}, language = {en} } @article{BlankeHagenkampDoeringetal.2021, author = {Blanke, Tobias and Hagenkamp, Markus and D{\"o}ring, Bernd and G{\"o}ttsche, Joachim and Reger, Vitali and Kuhnhenne, Markus}, title = {Net-exergetic, hydraulic and thermal optimization of coaxial heat exchangers using fixed flow conditions instead of fixed flow rates}, series = {Geothermal Energy}, volume = {9}, journal = {Geothermal Energy}, number = {Article number: 19}, publisher = {Springer}, address = {Berlin}, issn = {2195-9706}, doi = {10.1186/s40517-021-00201-3}, pages = {23 Seiten}, year = {2021}, abstract = {Previous studies optimized the dimensions of coaxial heat exchangers using constant mass fow rates as a boundary condition. They show a thermal optimal circular ring width of nearly zero. Hydraulically optimal is an inner to outer pipe radius ratio of 0.65 for turbulent and 0.68 for laminar fow types. In contrast, in this study, fow conditions in the circular ring are kept constant (a set of fxed Reynolds numbers) during optimization. This approach ensures fxed fow conditions and prevents inappropriately high or low mass fow rates. The optimization is carried out for three objectives: Maximum energy gain, minimum hydraulic efort and eventually optimum net-exergy balance. The optimization changes the inner pipe radius and mass fow rate but not the Reynolds number of the circular ring. The thermal calculations base on Hellstr{\"o}m's borehole resistance and the hydraulic optimization on individually calculated linear loss of head coefcients. Increasing the inner pipe radius results in decreased hydraulic losses in the inner pipe but increased losses in the circular ring. The net-exergy diference is a key performance indicator and combines thermal and hydraulic calculations. It is the difference between thermal exergy fux and hydraulic efort. The Reynolds number in the circular ring is instead of the mass fow rate constant during all optimizations. The result from a thermal perspective is an optimal width of the circular ring of nearly zero. The hydraulically optimal inner pipe radius is 54\% of the outer pipe radius for laminar fow and 60\% for turbulent fow scenarios. Net-exergetic optimization shows a predominant infuence of hydraulic losses, especially for small temperature gains. The exact result depends on the earth's thermal properties and the fow type. Conclusively, coaxial geothermal probes' design should focus on the hydraulic optimum and take the thermal optimum as a secondary criterion due to the dominating hydraulics.}, language = {en} } @inproceedings{DuranParedesMottaghyHerrmannetal.2020, author = {Duran Paredes, Ludwin and Mottaghy, Darius and Herrmann, Ulf and Groß, Rolf Fritz}, title = {Online ground temperature and soil moisture monitoring of a shallow geothermal system with non-conventional components}, series = {EGU General Assembly 2020}, booktitle = {EGU General Assembly 2020}, year = {2020}, abstract = {We present first results from a newly developed monitoring station for a closed loop geothermal heat pump test installation at our campus, consisting of helix coils and plate heat exchangers, as well as an ice-store system. There are more than 40 temperature sensors and several soil moisture content sensors distributed around the system, allowing a detailed monitoring under different operating conditions.In the view of the modern development of renewable energies along with the newly concepts known as Internet of Things and Industry 4.0 (high-tech strategy from the German government), we created a user-friendly web application, which will connect the things (sensors) with the open network (www). Besides other advantages, this allows a continuous remote monitoring of the data from the numerous sensors at an arbitrary sampling rate.Based on the recorded data, we will also present first results from numerical simulations, taking into account all relevant heat transport processes.The aim is to improve the understanding of these processes and their influence on the thermal behavior of shallow geothermal systems in the unsaturated zone. This will in turn facilitate the prediction of the performance of these systems and therefore yield an improvement in their dimensioning when designing a specific shallow geothermal installation.}, language = {en} } @inproceedings{AhmedSchlenkhoffBung2011, author = {Ahmed, H. and Schlenkhoff, A. and Bung, Daniel Bernhard}, title = {Hydrodynamic characteristics of vertical slotted wall breakwaters}, series = {Balance and uncertainty - water in a changing world : proceedings of the 34th IAHR world congress ; 33rd Hydrology and Water Resources Symposium ; 10th Conference on Hydraulics in Water Engineering ; 26 June - 1 July 2011, Brisbane, Australia}, booktitle = {Balance and uncertainty - water in a changing world : proceedings of the 34th IAHR world congress ; 33rd Hydrology and Water Resources Symposium ; 10th Conference on Hydraulics in Water Engineering ; 26 June - 1 July 2011, Brisbane, Australia}, organization = {International Association for Hydraulic Engineering and Research}, isbn = {978-0-85825-868-6}, pages = {1179 -- 1186}, year = {2011}, language = {en} } @article{CheenakulaGriebelMontagetal.2023, author = {Cheenakula, Dheeraja and Griebel, Kai and Montag, David and Gr{\"o}mping, Markus}, title = {Concept development of a mainstream deammonification and comparison with conventional process in terms of energy, performance and economical construction perspectives}, series = {Frontiers in Microbiology}, volume = {14}, journal = {Frontiers in Microbiology}, number = {11155235}, editor = {Huang, Xiaowu}, publisher = {Frontiers}, issn = {1664-302X}, doi = {10.3389/fmicb.2023.1155235}, pages = {1 -- 15}, year = {2023}, abstract = {Deammonification for nitrogen removal in municipal wastewater in temperate and cold climate zones is currently limited to the side stream of municipal wastewater treatment plants (MWWTP). This study developed a conceptual model of a mainstream deammonification plant, designed for 30,000 P.E., considering possible solutions corresponding to the challenging mainstream conditions in Germany. In addition, the energy-saving potential, nitrogen elimination performance and construction-related costs of mainstream deammonification were compared to a conventional plant model, having a single-stage activated sludge process with upstream denitrification. The results revealed that an additional treatment step by combining chemical precipitation and ultra-fine screening is advantageous prior the mainstream deammonification. Hereby chemical oxygen demand (COD) can be reduced by 80\% so that the COD:N ratio can be reduced from 12 to 2.5. Laboratory experiments testing mainstream conditions of temperature (8-20°C), pH (6-9) and COD:N ratio (1-6) showed an achievable volumetric nitrogen removal rate (VNRR) of at least 50 gN/(m3∙d) for various deammonifying sludges from side stream deammonification systems in the state of North Rhine-Westphalia, Germany, where m3 denotes reactor volume. Assuming a retained Norganic content of 0.0035 kgNorg./(P.E.∙d) from the daily loads of N at carbon removal stage and a VNRR of 50 gN/(m3∙d) under mainstream conditions, a resident-specific reactor volume of 0.115 m3/(P.E.) is required for mainstream deammonification. This is in the same order of magnitude as the conventional activated sludge process, i.e., 0.173 m3/(P.E.) for an MWWTP of size class of 4. The conventional plant model yielded a total specific electricity demand of 35 kWh/(P.E.∙a) for the operation of the whole MWWTP and an energy recovery potential of 15.8 kWh/(P.E.∙a) through anaerobic digestion. In contrast, the developed mainstream deammonification model plant would require only a 21.5 kWh/(P.E.∙a) energy demand and result in 24 kWh/(P.E.∙a) energy recovery potential, enabling the mainstream deammonification model plant to be self-sufficient. The retrofitting costs for the implementation of mainstream deammonification in existing conventional MWWTPs are nearly negligible as the existing units like activated sludge reactors, aerators and monitoring technology are reusable. However, the mainstream deammonification must meet the performance requirement of VNRR of about 50 gN/(m3∙d) in this case.}, language = {en} } @incollection{MelznerFerger2024, author = {Melzner, J{\"u}rgen and Ferger, Martin}, title = {Building Information Modeling}, series = {Zahlentafeln f{\"u}r den Baubetrieb}, booktitle = {Zahlentafeln f{\"u}r den Baubetrieb}, editor = {Krause, Thomas and Ulke, Bernd and Ferger, Martin}, publisher = {Springer Vieweg}, address = {Wiesbaden}, isbn = {978-3-658-41329-3 (Print)}, doi = {10.1007/978-3-658-41330-9_15}, pages = {1051 -- 1073}, year = {2024}, abstract = {Durch die Einf{\"u}hrung von Building Information Modeling (BIM) sowohl projektspezifisch als auch in ganze Unternehmungen hat die Baubranche einen weitreichenden Ver{\"a}nderungsprozess angestoßen. Building Information Modeling kann als eine Methode angesehen werden, um die Informationsasymmetrien zwischen den Projektbeteiligten so gering wie m{\"o}glich zu halten.}, language = {de} } @techreport{ThomaLaarmannMerkensetal.2020, author = {Thoma, Andreas and Laarmann, Lukas and Merkens, Torsten and Franzke, Till and M{\"o}hren, Felix and Buttermann, Lilly and van der Weem, Dirk and Fischer, Maximilian and Misch, Philipp and B{\"o}hme, Mirijam and R{\"o}th, Thilo and Hebel, Christoph and Ritz, Thomas and Franke, Marina and Braun, Carsten}, title = {Entwicklung eines intermodalen Mobilit{\"a}tskonzeptes f{\"u}r die Pilotregion NRW/Rhein-Maas Euregio und Schaffung voller Kundenakzeptanz durch Transfer von Standards aus dem PKW-Bereich auf ein Flugtaxi : Schlussbericht : Projektakronym: SkyCab (Kategorie B) : Laufzeit in Monaten: 6 : Hauptthema: Kategorie B: Innovative Ideen mit Bezug zu UAS/Flugtaxis}, publisher = {FH Aachen}, address = {Aachen}, pages = {97 Seiten}, year = {2020}, language = {de} } @inproceedings{KerpenSchooneesSchlurmannetal.2019, author = {Kerpen, Nils B. and Schoonees, Talia and Schlurmann, Torsten and Valero, Daniel and Bung, Daniel Bernhard}, title = {waveSTEPS - Wellenauf- und Wellen{\"u}berlauf an getreppten Deckwerken}, series = {24. KFKI-Seminar 2019, 21.11.2019}, booktitle = {24. KFKI-Seminar 2019, 21.11.2019}, pages = {2 Seiten}, year = {2019}, language = {de} } @inproceedings{LopesBungLeandroetal.2015, author = {Lopes, Pedro and Bung, Daniel Bernhard and Leandro, Jorge and Carvalho, Rita F.}, title = {The effect of cross-waves in physical stepped spillway models}, series = {E-proceedings of the 36th IAHR World Congress ; 28 June - 3 July, 2015, The Hague, the Netherlands}, booktitle = {E-proceedings of the 36th IAHR World Congress ; 28 June - 3 July, 2015, The Hague, the Netherlands}, organization = {International Association for Hydro-Environment Engineering and Research}, pages = {1 -- 9}, year = {2015}, language = {en} } @article{Krause2006, author = {Krause, Thomas}, title = {Schalung und Ger{\"u}ste}, series = {Beispiele f{\"u}r die Baubetriebspraxis / Hoffmann, Manfred ; Kuhlmann, Willy [Hrsg.].}, journal = {Beispiele f{\"u}r die Baubetriebspraxis / Hoffmann, Manfred ; Kuhlmann, Willy [Hrsg.].}, publisher = {Teubner}, address = {Wiesbaden}, isbn = {978-3-8351-0002-2}, pages = {122 -- 131}, year = {2006}, language = {de} } @article{OertelBung2015, author = {Oertel, Mario and Bung, Daniel Bernhard}, title = {Stability and scour development of bed material on crossbar block ramps}, series = {International journal of sediment research}, volume = {30}, journal = {International journal of sediment research}, number = {4}, publisher = {Elsevier}, address = {Amsterdam}, issn = {1001-6279}, doi = {10.1016/j.ijsrc.2014.12.003}, pages = {344 -- 350}, year = {2015}, abstract = {Block ramps are ecologically oriented drop structures with adequate energy dissipation and partially moderate flow velocities. A special case is given with crossbar block ramps, where the upstream and downstream level difference is reduced by a series of basins. To prevent the total structure from failing, the stability of single boulders within the crossbars and the bed material in between must be guaranteed. The present paper addresses the stability of bed material and scour development for various flow regimes. Any bed material erosion may affect the stability of the crossbar boulders, which in turn can result in major damages of the ramp. Therefore new design approaches are developed to choose an appropriate bed material size and to avoid failures of crossbar block ramp structures.}, language = {en} } @book{KrauseUlkeFerger2024, author = {Krause, Thomas and Ulke, Bernd and Ferger, Martin}, title = {Zahlentafeln f{\"u}r den Baubetrieb}, editor = {Krause, Thomas and Ulke, Bernd and Ferger, Martin}, edition = {10. Auflage}, publisher = {Springer Vieweg}, address = {Wiesbaden}, isbn = {978-3-658-41329-3 (Print)}, doi = {10.1007/978-3-658-41330-9}, pages = {XII, 1087 Seiten}, year = {2024}, language = {de} } @inproceedings{BungValero2016, author = {Bung, Daniel Bernhard and Valero, Daniel}, title = {Application of the optical flow method to velocity determination in hydraulic structure models}, series = {Hydraulic Structures and Water System Management. 6th IAHR International Symposium on Hydraulic Structures, Portland, OR, 27-30 June 2016}, booktitle = {Hydraulic Structures and Water System Management. 6th IAHR International Symposium on Hydraulic Structures, Portland, OR, 27-30 June 2016}, editor = {Crookston, B. and Tullis, B.}, isbn = {978-1-884575-75-4}, doi = {10.15142/T3150628160853}, pages = {223 -- 232}, year = {2016}, language = {en} } @incollection{KrauseKremer2016, author = {Krause, Thomas and Kremer, Norbert}, title = {Schalung und Ger{\"u}ste}, series = {Zahlentafeln f{\"u}r den Baubetrieb}, booktitle = {Zahlentafeln f{\"u}r den Baubetrieb}, edition = {9., {\"u}berarb. und aktual. Aufl.}, publisher = {Springer Vieweg}, address = {Wiesbaden}, isbn = {978-3-658-02838-1 (Online)}, doi = {10.1007/978-3-658-02838-1_11}, pages = {1247 -- 1296}, year = {2016}, abstract = {Systemschalungen und Systemger{\"u}ste haben den Baustellenbetrieb in vielen Bereichen sehr vereinfacht. Dennoch sind Kenntnisse in diesen Feldern f{\"u}r eine erfolgreiche und effektive Bauleitung unverzichtbar. In diesem Kapitel werden Hinweise und Empfehlungen f{\"u}r die Bemessung und Einsatz von Schalungen, Trag- und Arbeitsger{\"u}sten f{\"u}r den Baustellenbetrieb gegeben.}, language = {de} } @incollection{Ulke2024, author = {Ulke, Bernd}, title = {Bauwirtschaft}, series = {Zahlentafeln f{\"u}r den Baubetrieb}, booktitle = {Zahlentafeln f{\"u}r den Baubetrieb}, editor = {Krause, Thomas and Ulke, Bernd and Ferger, Martin}, publisher = {Springer Vieweg}, address = {Wiesbaden}, isbn = {978-3-658-41329-3 (Print)}, doi = {10.1007/978-3-658-41330-9_4}, pages = {17 -- 261}, year = {2024}, abstract = {Die Leistungen der Bauwirtschaft und deren wirtschaftliche Bedeutung in Deutschland werden anhand einer Vielzahl statistischer Daten verdeutlicht. Die im Vergleich zu anderen Wirtschaftsbereichen auftretenden branchenspezifischen Besonderheiten der Bauwirtschaft werden anhand von verschiedenen Kriterien herausgearbeitet. Das Zusammenspiel der einzelnen Akteure des Sektors und die dabei sich ergebenden bzw. zu beachtenden Rechts- und Vertragsgrundlagen werden dargestellt. Aufgrund der meist erheblichen H{\"o}he des eingesetzten Kapitals werden auch notwendige Formen der Risikoabsicherungen und der in der Branche {\"u}blichen und teilweise vorgeschriebenen Versicherungsm{\"o}glichkeiten angesprochen.}, language = {de} } @article{ValeroBung2018, author = {Valero, Daniel and Bung, Daniel Bernhard}, title = {Reformulating self-aeration in hydraulic structures: Turbulent growth of free surface perturbations leading to air entrainment}, series = {International Journal of Multiphase Flow}, volume = {100}, journal = {International Journal of Multiphase Flow}, publisher = {Elsevier}, address = {Amsterdam}, issn = {0301-9322}, doi = {10.1016/j.ijmultiphaseflow.2017.12.011}, pages = {127 -- 142}, year = {2018}, abstract = {A new formulation for the prediction of free surface dynamics related to the turbulence occurring nearby is proposed. This formulation, altogether with a breakup criterion, can be used to compute the inception of self-aeration in high velocity flows like those occurring in hydraulic structures. Assuming a simple perturbation geometry, a kinematic and a non-linear momentum-based dynamic equation are formulated and forces acting on a control volume are approximated. Limiting steepness is proposed as an adequate breakup criterion. Role of the velocity fluctuations normal to the free surface is shown to be the main turbulence quantity related to self-aeration and the role of the scales contained in the turbulence spectrum are depicted. Surface tension force is integrated accounting for large displacements by using differential geometry for the curvature estimation. Gravity and pressure effects are also contemplated in the proposed formulation. The obtained equations can be numerically integrated for each wavelength, hence resulting in different growth rates and allowing computation of the free surface roughness wavelength distribution. Application to a prototype scale spillway (at the Aviemore dam) revealed that most unstable wavelength was close to the Taylor lengthscale. Amplitude distributions have been also obtained observing different scaling for perturbations stabilized by gravity or surface tension. The proposed theoretical framework represents a new conceptualization of self-aeration which explains the characteristic rough surface at the non-aerated region as well as other previous experimental observations which remained unresolved for several decades.}, language = {en} } @article{ValeroBungErpicumetal.2022, author = {Valero, Daniel and Bung, Daniel Bernhard and Erpicum, Sebastien and Peltier, Yann and Dewals, Benjamin}, title = {Unsteady shallow meandering flows in rectangular reservoirs: a modal analysis of URANS modelling}, series = {Journal of Hydro-environment Research}, journal = {Journal of Hydro-environment Research}, number = {In Press}, publisher = {Elsevier}, address = {Amsterdam}, issn = {1570-6443}, doi = {10.1016/j.jher.2022.03.002}, year = {2022}, abstract = {Shallow flows are common in natural and human-made environments. Even for simple rectangular shallow reservoirs, recent laboratory experiments show that the developing flow fields are particularly complex, involving large-scale turbulent structures. For specific combinations of reservoir size and hydraulic conditions, a meandering jet can be observed. While some aspects of this pseudo-2D flow pattern can be reproduced using a 2D numerical model, new 3D simulations, based on the unsteady Reynolds-Averaged Navier-Stokes equations, show consistent advantages as presented herein. A Proper Orthogonal Decomposition was used to characterize the four most energetic modes of the meandering jet at the free surface level, allowing comparison against experimental data and 2D (depth-averaged) numerical results. Three different isotropic eddy viscosity models (RNG k-ε, k-ε, k-ω) were tested. The 3D models accurately predicted the frequency of the modes, whereas the amplitudes of the modes and associated energy were damped for the friction-dominant cases and augmented for non-frictional ones. The performance of the three turbulence models remained essentially similar, with slightly better predictions by RNG k-ε model in the case with the highest Reynolds number. Finally, the Q-criterion was used to identify vortices and study their dynamics, assisting on the identification of the differences between: i) the three-dimensional phenomenon (here reproduced), ii) its two-dimensional footprint in the free surface (experimental observations) and iii) the depth-averaged case (represented by 2D models).}, language = {en} } @inproceedings{KerpenBungValeroetal.2016, author = {Kerpen, Nils B. and Bung, Daniel Bernhard and Valero, Daniel and Schlurmann, Torsten}, title = {Energy dissipation within the wave run-up at stepped revetments}, series = {8th Chinese-German Joint Symposium on Hydraulic and Ocean Engineering, Qingdao, China}, booktitle = {8th Chinese-German Joint Symposium on Hydraulic and Ocean Engineering, Qingdao, China}, pages = {6 Seiten}, year = {2016}, language = {en} } @article{CheenakulaHoffstadtKrafftetal.2022, author = {Cheenakula, Dheeraja and Hoffstadt, Kevin and Krafft, Simone and Reinecke, Diana and Klose, Holger and Kuperjans, Isabel and Gr{\"o}mping, Markus}, title = {Anaerobic digestion of algal-bacterial biomass of an Algal Turf Scrubber system}, series = {Biomass Conversion and Biorefinery}, volume = {13}, journal = {Biomass Conversion and Biorefinery}, publisher = {Springer}, address = {Berlin}, issn = {2190-6823}, doi = {10.1007/s13399-022-03236-z}, pages = {15 Seiten}, year = {2022}, abstract = {This study investigated the anaerobic digestion of an algal-bacterial biofilm grown in artificial wastewater in an Algal Turf Scrubber (ATS). The ATS system was located in a greenhouse (50°54′19ʺN, 6°24′55ʺE, Germany) and was exposed to seasonal conditions during the experiment period. The methane (CH4) potential of untreated algal-bacterial biofilm (UAB) and thermally pretreated biofilm (PAB) using different microbial inocula was determined by anaerobic batch fermentation. Methane productivity of UAB differed significantly between microbial inocula of digested wastepaper, a mixture of manure and maize silage, anaerobic sewage sludge, and percolated green waste. UAB using sewage sludge as inoculum showed the highest methane productivity. The share of methane in biogas was dependent on inoculum. Using PAB, a strong positive impact on methane productivity was identified for the digested wastepaper (116.4\%) and a mixture of manure and maize silage (107.4\%) inocula. By contrast, the methane yield was significantly reduced for the digested anaerobic sewage sludge (50.6\%) and percolated green waste (43.5\%) inocula. To further evaluate the potential of algal-bacterial biofilm for biogas production in wastewater treatment and biogas plants in a circular bioeconomy, scale-up calculations were conducted. It was found that a 0.116 km2 ATS would be required in an average municipal wastewater treatment plant which can be viewed as problematic in terms of space consumption. However, a substantial amount of energy surplus (4.7-12.5 MWh a-1) can be gained through the addition of algal-bacterial biomass to the anaerobic digester of a municipal wastewater treatment plant. Wastewater treatment and subsequent energy production through algae show dominancy over conventional technologies.}, language = {en} } @inproceedings{BlankeSchmidtGoettscheetal.2022, author = {Blanke, Tobias and Schmidt, Katharina S. and G{\"o}ttsche, Joachim and D{\"o}ring, Bernd and Frisch, J{\´e}r{\^o}me and van Treeck, Christoph}, title = {Time series aggregation for energy system design: review and extension of modelling seasonal storages}, series = {Energy Informatics}, volume = {5}, booktitle = {Energy Informatics}, number = {1, Article number: 17}, editor = {Weidlich, Anke and Neumann, Dirk and Gust, Gunther and Staudt, Philipp and Sch{\"a}fer, Mirko}, publisher = {Springer Nature}, issn = {2520-8942}, doi = {10.1186/s42162-022-00208-5}, pages = {14 Seiten}, year = {2022}, abstract = {Using optimization to design a renewable energy system has become a computationally demanding task as the high temporal fluctuations of demand and supply arise within the considered time series. The aggregation of typical operation periods has become a popular method to reduce effort. These operation periods are modelled independently and cannot interact in most cases. Consequently, seasonal storage is not reproducible. This inability can lead to a significant error, especially for energy systems with a high share of fluctuating renewable energy. The previous paper, "Time series aggregation for energy system design: Modeling seasonal storage", has developed a seasonal storage model to address this issue. Simultaneously, the paper "Optimal design of multi-energy systems with seasonal storage" has developed a different approach. This paper aims to review these models and extend the first model. The extension is a mathematical reformulation to decrease the number of variables and constraints. Furthermore, it aims to reduce the calculation time while achieving the same results.}, language = {en} } @article{OertelBung2012, author = {Oertel, Mario and Bung, Daniel Bernhard}, title = {Initial stage of two-dimensional dam-break waves: laboratory versus VOF}, series = {Journal of hydraulic research}, volume = {50}, journal = {Journal of hydraulic research}, number = {1}, publisher = {Taylor \& Francis}, address = {London}, issn = {1814-2079 (E-Journal); 0022-1686 (Print)}, doi = {10.1080/00221686.2011.639981}, pages = {89 -- 97}, year = {2012}, abstract = {Since several decades, dam-break waves have been of main research interest. Mathematical approaches have been developed by analytical, physical and numerical models within the past 120 years. During the past 10 years, the number of research investigations has increased due to improved measurement techniques as well as significantly increased computer memories and performances. In this context, the present research deals with the initial stage of two-dimensional dam-break waves by comparing physical and numerical model results as well as analytical approaches. High-speed images and resulting particle image velocimetry calculations are thereby compared with the numerical volume-of-fluid (VOF) method, included in the commercial code FLOW-3D. Wave profiles and drag forces on placed obstacles are analysed in detail. Generally, a good agreement between the laboratory and VOF results is found.}, language = {en} } @article{BungValero2018, author = {Bung, Daniel Bernhard and Valero, Daniel}, title = {Re-aeration on stepped spillways with special consideration of entrained and entrapped air}, series = {Geosciences}, volume = {8}, journal = {Geosciences}, number = {9}, publisher = {MDPI}, address = {Basel}, issn = {2076-3263}, pages = {Article number 333}, year = {2018}, abstract = {As with most high-velocity free-surface flows, stepped spillway flows become self-aerated when the drop height exceeds a critical value. Due to the step-induced macro-roughness, the flow field becomes more turbulent than on a similar smooth-invert chute. For this reason, cascades are oftentimes used as re-aeration structures in wastewater treatment. However, for stepped spillways as flood release structures downstream of deoxygenated reservoirs, gas transfer is also of crucial significance to meet ecological requirements. Prediction of mass transfer velocities becomes challenging, as the flow regime differs from typical previously studied flow conditions. In this paper, detailed air-water flow measurements are conducted on stepped spillway models with different geometry, with the aim to estimate the specific air-water interface. Re-aeration performances are determined by applying the absorption method. In contrast to earlier studies, the aerated water body is considered a continuous mixture up to a level where 75\% air concentration is reached. Above this level, a homogenous surface wave field is considered, which is found to significantly affect the total air-water interface available for mass transfer. Geometrical characteristics of these surface waves are obtained from high-speed camera investigations. The results show that both the mean air concentration and the mean flow velocity have influence on the mass transfer. Finally, an empirical relationship for the mass transfer on stepped spillway models is proposed.}, language = {en} } @article{LeandroBungCarvalho2014, author = {Leandro, J. and Bung, Daniel Bernhard and Carvalho, R.}, title = {Measuring void fraction and velocity fields of a stepped spillway for skimming flow using non-intrusive methods}, series = {Experiments in fluids}, journal = {Experiments in fluids}, number = {55}, publisher = {Springer Nature}, address = {Heidelberg}, issn = {0723-4864 (Print) ; 1432-1114 (Online)}, doi = {10.1007/s00348-014-1732-6}, pages = {Art. 1732}, year = {2014}, language = {en} } @inproceedings{BungPagliara2013, author = {Bung, Daniel Bernhard and Pagliara, S.}, title = {Proceedings of the International Workshop on Hydraulic Design of Low-Head Structures : Aachen, Germany, February, 20-22, 2013 / D. Bung ; S. Pagliara (eds.)}, publisher = {Bundesanst. f{\"u}r Wasserbau}, address = {Karlsruhe}, isbn = {978-3-939230-04-5}, pages = {X, 230 S. + 1 CD-ROM}, year = {2013}, language = {en} } @article{ErpicumCrookstonBombardellietal.2021, author = {Erpicum, Sebastien and Crookston, Brian M. and Bombardelli, Fabian and Bung, Daniel Bernhard and Felder, Stefan and Mulligan, Sean and Oertel, Mario and Palermo, Michele}, title = {Hydraulic structures engineering: An evolving science in a changing world}, series = {Wires Water}, volume = {8}, journal = {Wires Water}, number = {2}, publisher = {Wiley}, address = {Weinheim}, issn = {2049-1948}, doi = {10.1002/wat2.1505}, year = {2021}, language = {en} } @article{KramerValeroChansonetal.2019, author = {Kramer, Matthias and Valero, Daniel and Chanson, Hubert and Bung, Daniel Bernhard}, title = {Towards reliable turbulence estimations with phase-detection probes: an adaptive window cross-correlation technique}, series = {Experiments in Fluids}, volume = {60}, journal = {Experiments in Fluids}, publisher = {Springer}, address = {Berlin}, issn = {1432-1114}, doi = {10.1007/s00348-018-2650-9}, year = {2019}, language = {en} } @article{BlankeRegerDoeringetal.2021, author = {Blanke, Tobias and Reger, Vitali and D{\"o}ring, Bernd and G{\"o}ttsche, Joachim and Kuhnhenne, Markus}, title = {Koaxiale Stahlenergiepf{\"a}hle}, series = {Stahlbau}, volume = {90. 2021}, journal = {Stahlbau}, number = {6}, publisher = {Wiley}, address = {Weinheim}, pages = {417 -- 424}, year = {2021}, abstract = {Ein entscheidender Teil der Energiewende ist die W{\"a}rmewende im Geb{\"a}udesektor. Ein Schl{\"u}sselelement sind hier W{\"a}rmepumpen. Diese ben{\"o}tigen eine W{\"a}rmequelle, der sie Energie entziehen k{\"o}nnen, um sie auf ein h{\"o}heres Temperaturniveau zu transformieren. Diese W{\"a}rmequelle kann bspw. das Erdreich sein, dessen W{\"a}rme durch Erdsonden erschlossen werden kann. In diesem Beitrag werden in Stahlpf{\"a}hle integrierte Koaxialsonden mit dem Stand der Technik von Erdsonden gleichen Durchmessers bez{\"u}glich ihrer thermischen Leistungsmerkmale verglichen. Die Stahlenergiepf{\"a}hle bieten neben der W{\"a}rmegewinnung weitere Vorteile, da sie auch eine statische Funktion {\"u}bernehmen und r{\"u}ckstandsfrei zur{\"u}ckgebaut werden k{\"o}nnen. Es werden analytische und numerische Berechnungen vorgestellt, um die thermischen Potenziale beider Systeme zu vergleichen. Außerdem wird ein Testaufbau gezeigt, bei dem Stahlenergiepf{\"a}hle in zwei verschiedenen L{\"a}ngen mit vorhandenen g{\"a}ngigen Erdsonden verglichen werden k{\"o}nnen. Die Berechnungen zeigen einen deutlichen thermischen Mehrertrag zwischen 26 \% und 148 \% der Stahlenergiepf{\"a}hle gegen{\"u}ber dem Stand der Technik abh{\"a}ngig vom Erdreich. Die Messergebnisse zeigen einen thermischen Mehrertrag von {\"u}ber 100 \%. Es l{\"a}sst sich also signifikante Erdsondenl{\"a}nge einsparen. Dabei ist zu beachten, dass sich damit der thermisch genutzte Bereich des Erdreichs reduziert, wodurch die thermische Regeneration und/oder das Langzeitverhalten des Erdreichs an Bedeutung gewinnt.}, language = {de} } @incollection{Krause2019, author = {Krause, Thomas}, title = {Schalung und Ger{\"u}ste}, series = {{\"U}bungsaufgaben und Berechnungen f{\"u}r den Baubetrieb}, booktitle = {{\"U}bungsaufgaben und Berechnungen f{\"u}r den Baubetrieb}, publisher = {Springer Vieweg}, address = {Wiesbaden}, isbn = {978-3-658-23127-9 (Online)}, doi = {10.1007/978-3-658-23127-9_9}, pages = {241 -- 253}, year = {2019}, abstract = {Die grunds{\"a}tzliche Planung von Schalungsaufgaben wird heute in der Regel im Rahmen der Arbeitsvorbereitung von den entsprechenden Stabsabteilungen oder als Serviceleistung von den Schalungsherstellern mit Anwendung von spezieller Software und den technischen Unterlagen f{\"u}r die jeweiligen Schalungsger{\"a}te durchgef{\"u}hrt. Diese Programme und technischen Unterlagen stehen in der Regel auch den Mitarbeitern in der Bauleitung zur Verf{\"u}gung, werden dort aber eher seltener genutzt. Zur Anwendung auf der Baustelle stellen die Schalungshersteller neben den technischen Unterlagen Bemessungstabellen zur Verf{\"u}gung, welche die Auswahl und Dimensionierung einzelner Schalungen wesentlich erleichtern. Die nachfolgend aufgef{\"u}hrten Beispiele aus dem Bereich Schalung und Ger{\"u}ste beschreiben Aufgaben, die im Baustellenbetrieb auf die Bauleitung zu kommen k{\"o}nnen und auch ohne Unterst{\"u}tzung einer Stabsabteilung gel{\"o}st werden k{\"o}nnen.}, language = {de} } @incollection{Schloesser2016, author = {Schl{\"o}sser, Karl Helmut}, title = {Arbeitsvorbereitung und Ablaufplanung}, series = {Zahlentafeln f{\"u}r den Baubetrieb}, booktitle = {Zahlentafeln f{\"u}r den Baubetrieb}, edition = {9., {\"u}berarb. und aktual. Aufl.}, publisher = {Springer Vieweg}, address = {Wiesbaden}, isbn = {978-3-658-02838-1 (Online)}, doi = {10.1007/978-3-658-02838-1_8}, pages = {1029 -- 1067}, year = {2016}, abstract = {Kosten- und Verfahrensvergleiche k{\"o}nnen dabei zur Ermittlung des f{\"u}r die Aufgabe geeignetsten Bauverfahren f{\"u}hren. F{\"u}r die sich daran anschließende Ablaufplanung werden die verschiedenen graphischen sowie rechnerischen Instrumente (Terminliste und Taktplan, Balkenplan, Weg-Zeit-Diagramm und Netzplan) erl{\"a}utert und anhand von Beispielen vertieft. Schließlich wird ein im Rahmen der Arbeits- und Nachkalkulation vorzunehmender Soll-Ist-Vergleich mit Hilfe des Bauarbeitsschl{\"u}ssels (BAS) zur {\"U}berpr{\"u}fung der Aufwands- und Leistungswerte dargestellt.}, language = {de} } @incollection{Ulke2016, author = {Ulke, Bernd}, title = {Boden, Baugrube, Verbau}, series = {Zahlentafeln f{\"u}r den Baubetrieb}, booktitle = {Zahlentafeln f{\"u}r den Baubetrieb}, edition = {9., {\"u}berarb. und aktual. Aufl.}, publisher = {Springer Vieweg}, address = {Wiesbaden}, isbn = {978-3-658-02838-1 (Online)}, doi = {10.1007/978-3-658-02838-1_10}, pages = {1165 -- 1246}, year = {2016}, abstract = {Die L{\"o}sung den Baugrund betreffender Fragestellungen beginnen i. d. R. mit der Durchf{\"u}hrung von Baugrunderkundungen, um alle notwendigen Parameter zu erhalten, die f{\"u}r die Planung und Durchf{\"u}hrung von Bauvorhaben notwendig sind. Im Folgenden werden die wichtigsten Erkundungen in Abh{\"a}ngigkeit der erforderlichen G{\"u}teklasse der Proben beschrieben und vorgestellt.}, language = {de} } @incollection{Lemke2016, author = {Lemke, J{\"o}rg}, title = {Unfallverh{\"u}tung, Arbeits- und Gesundheitsschutz}, series = {Zahlentafeln f{\"u}r den Baubetrieb}, booktitle = {Zahlentafeln f{\"u}r den Baubetrieb}, edition = {9., {\"u}berarb. und aktual. Aufl.}, publisher = {Springer Vieweg}, address = {Wiesbaden}, isbn = {978-3-658-02838-1 (Online)}, doi = {10.1007/978-3-658-02838-1_15}, pages = {1599 -- 1638}, year = {2016}, abstract = {Neben dem durch Unf{\"a}lle und Krankheiten entstehenden menschlichen Leids und der daraus resultierenden moralischen Verpflichtung, sich und seine Mitmenschen vor Schaden zu bewahren, ist der Arbeits- und Gesundheitsschutz auch ein Gebot wirtschaftlichen Handelns, da Arbeitsunf{\"a}lle und Berufskrankheiten Ausfallzeiten und Kosten verursachen. So geh{\"o}ren Arbeits- und Gesundheitsschutz zu den wichtigen Aufgaben eines Unternehmens.}, language = {de} } @incollection{Winkler2016, author = {Winkler, Norbert}, title = {Vermessung}, series = {Zahlentafeln f{\"u}r den Baubetrieb}, booktitle = {Zahlentafeln f{\"u}r den Baubetrieb}, edition = {9., {\"u}berarb. und aktual. Aufl.}, publisher = {Springer Vieweg}, address = {Wiesbaden}, isbn = {978-3-658-02838-1 (Online)}, doi = {10.1007/978-3-658-02838-1_3}, pages = {159 -- 177}, year = {2016}, language = {de} } @incollection{Schloesser2016, author = {Schl{\"o}sser, Karl Helmut}, title = {Bauwirtschaft und Baurecht}, series = {Zahlentafeln f{\"u}r den Baubetrieb}, booktitle = {Zahlentafeln f{\"u}r den Baubetrieb}, edition = {9., {\"u}berarb. und aktual. Aufl.}, publisher = {Springer Vieweg}, address = {Wiesbaden}, isbn = {978-3-658-02838-1 (Online)}, doi = {10.1007/978-3-658-02838-1_4}, pages = {179 -- 421}, year = {2016}, abstract = {Die Leistungen der Bauwirtschaft und deren wirtschaftliche Bedeutung in Deutschland werden anhand einer Vielzahl statistischer Daten verdeutlicht. Die im Vergleich zu anderen Wirtschaftsbereichen auftretenden branchenspezifischen Besonderheiten der Bauwirtschaft werden anhand von verschiedenen Kriterien herausgearbeitet. Das Zusammenspiel der einzelnen Akteure des Sektors und die dabei sich ergebenden bzw. zu beachtenden Rechts- und Vertragsgrundlagen werden dargestellt. Aufgrund der meist erheblichen H{\"o}he des eingesetzten Kapitals aufseiten der Auftraggeber, aber auch seitens der Bauunternehmen w{\"a}hrend der Bauausf{\"u}hrung sowie der besonderen Verantwortung der Beratenden Ingenieure werden auch notwendige Formen der Risikoabsicherungen und der in der Branche {\"u}blichen und teilweise vorgeschriebenen Versicherungsm{\"o}glichkeiten angesprochen. Intensive Beachtung finden auch die Auswirkungen des {\"O}ffentlichen Baurechts (Baugesetzbuch, Bauordnung NRW, Baunutzungsverordnung) auf Planung, Bau und Betrieb baulicher Anlagen und der dabei verwendeten Bauprodukte.}, language = {de} } @incollection{Schloesser2016, author = {Schl{\"o}sser, Karl Helmut}, title = {Baukosten und Finanzierung}, series = {Zahlentafeln f{\"u}r den Baubetrieb}, booktitle = {Zahlentafeln f{\"u}r den Baubetrieb}, edition = {9., {\"u}berarb. und aktual. Aufl.}, publisher = {Springer Vieweg}, address = {Wiesbaden}, isbn = {978-3-658-02838-1 (Online)}, doi = {10.1007/978-3-658-02838-1_5}, pages = {423 -- 634}, year = {2016}, language = {de} } @incollection{Schloesser2016, author = {Schl{\"o}sser, Karl Helmut}, title = {Leistungsbeschreibung und Bauvertrag}, series = {Zahlentafeln f{\"u}r den Baubetrieb}, booktitle = {Zahlentafeln f{\"u}r den Baubetrieb}, edition = {9., {\"u}berarb. und aktual. Aufl.}, publisher = {Springer Vieweg}, address = {Wiesbaden}, isbn = {978-3-658-02838-1 (Online)}, doi = {10.1007/978-3-658-02838-1_6}, pages = {635 -- 961}, year = {2016}, abstract = {Das Gesetz gegen Wettbewerbsbeschr{\"a}nkungen bildet die Grundlage f{\"u}r die Verordnung {\"u}ber die Vergabe {\"o}ffentlicher Auftr{\"a}ge, aus der sich die Vergabe- und Vertragsordnungen f{\"u}r Freiberufliche Leistungen (VOF), f{\"u}r Lieferungen und Leistungen (VOL) und f{\"u}r Bauleistungen (VOB) ableiten. Die dabei in Frage kommenden Vergabeverfahren und die einzelnen Schwellenwerte gem{\"a}ß EU-Recht werden detailliert aufbereitet und im Zusammenhang dargestellt. Die f{\"u}r die Ausgestaltung von Bauvertr{\"a}gen notwendigen Grundlagen des Werkvertragsrecht nach BGB sowie die branchenspezifischen Allgemeinen Gesch{\"a}ftsbedingungen in Form der Vertragsordnung f{\"u}r Bauleistungen (VOB) mit ihren Zus{\"a}tzlichen und Besonderen Vertragsbedingungen werden intensiv aufbereitet. Das Zustandekommen eines Bauvertrages ergibt sich dann aus der notwendigen Leistungsbeschreibung mit einem Leistungsverzeichnis und verschiedenen Positionen oder in Form einer Funktionalen Leistungsbeschreibung (Beschreibung mit Leistungsprogramm). Das Auslandsgesch{\"a}ft der Baubranche (Bauausf{\"u}hrende Unternehmen sowie Beratende Ingenieure und Consultants) wird von den jeweils vorliegenden Internationalen Wettbewerbsbedingungen bestimmt, deren Zusammenh{\"a}nge anhand umfangreicher statistischer Daten und anhand von Beispielen dargestellt werden.}, language = {de} } @article{KerresSiekmann2017, author = {Kerres, Karsten and Siekmann, Marko}, title = {Wie kommuniziere ich prognosegest{\"u}tzte Instandhaltungsstrategien erfolgreich in politischen Entscheidungsgremien?}, series = {3 R. Fachzeitschrift f{\"u}r sichere und effiziente Rohleitungssysteme}, journal = {3 R. Fachzeitschrift f{\"u}r sichere und effiziente Rohleitungssysteme}, number = {12}, publisher = {Vulkan-Verl.}, address = {Essen}, issn = {2191-9798}, pages = {47 -- 51}, year = {2017}, language = {de} } @article{JochimMenzel2018, author = {Jochim, Haldor E. and Menzel, Christoph J.}, title = {Die Trassenb{\"u}ndelung als Planungsmethode nachhaltiger Verkehrspolitik}, series = {Der Eisenbahningenieur : EI}, volume = {69}, journal = {Der Eisenbahningenieur : EI}, number = {11}, publisher = {DVV Media Group}, address = {Hamburg}, issn = {0013-2810}, pages = {26 -- 31}, year = {2018}, language = {de} } @article{KlubertMalechaSparla2018, author = {Klubert, Joachim and Malecha, Hartmut and Sparla, Peter}, title = {Modernisierung der geod{\"a}tischen Messtechnik der Urfttalsperre}, series = {Wasserwirtschaft}, volume = {108}, journal = {Wasserwirtschaft}, number = {10}, publisher = {Springer Vieweg}, address = {Wiesbaden}, issn = {0043-0978}, pages = {14 -- 18}, year = {2018}, language = {de} } @inproceedings{MerkensHebel2021, author = {Merkens, Torsten and Hebel, Christoph}, title = {Sharing mobility concepts - flexible, sustainable, smart}, series = {Proceedings of the 1st UNITED - Southeast Asia Automotive Interest Group (SAIG) International Conference}, booktitle = {Proceedings of the 1st UNITED - Southeast Asia Automotive Interest Group (SAIG) International Conference}, isbn = {978-3-902103-94-9}, pages = {43 -- 44}, year = {2021}, language = {en} } @article{Hebel2017, author = {Hebel, Christoph}, title = {Erfahrungen mit der RIN und aktuelle Weiterentwicklungen}, series = {Straßenverkehrstechnik: Organ der Forschungsgesellschaft f{\"u}r Straßen- und Verkehrswesen, der Bundesvereinigung der Straßenbau- und Verkehrsingenieure und der {\"O}sterreichischen Forschungsgesellschaft Straße und Verkehr; Zeitschrift f{\"u}r Verkehrsplanung, Verkehrsmanagement, Verkehrssicherheit, Verkehrstechnik}, volume = {61}, journal = {Straßenverkehrstechnik: Organ der Forschungsgesellschaft f{\"u}r Straßen- und Verkehrswesen, der Bundesvereinigung der Straßenbau- und Verkehrsingenieure und der {\"O}sterreichischen Forschungsgesellschaft Straße und Verkehr; Zeitschrift f{\"u}r Verkehrsplanung, Verkehrsmanagement, Verkehrssicherheit, Verkehrstechnik}, number = {7}, publisher = {Kirschbaum-Verlag}, address = {Bonn}, issn = {0039-2219}, pages = {443 -- 448}, year = {2017}, language = {de} } @article{PetersonRoethUibel2017, author = {Peterson, Leif Arne and R{\"o}th, Thilo and Uibel, Thomas}, title = {Einsatz von Holzwerkstoffen in Fahrzeugstrukturen}, series = {Bauen mit Holz}, journal = {Bauen mit Holz}, number = {3}, publisher = {Bruderverlag}, address = {K{\"o}ln}, issn = {0005-6545}, pages = {32 -- 38}, year = {2017}, language = {de} } @article{Uibel2016, author = {Uibel, Thomas}, title = {Untersuchungen zum Spaltverhalten von Holzschrauben. Teil 1}, series = {Bauen mit Holz}, journal = {Bauen mit Holz}, number = {10}, publisher = {Rudolf M{\"u}ller}, address = {K{\"o}ln}, issn = {0005-6545}, pages = {40 -- 42}, year = {2016}, language = {de} } @article{MoorkampPetersonUibel2016, author = {Moorkamp, Wilfried and Peterson, Leif Arne and Uibel, Thomas}, title = {Mit guten Aussichten. Bericht {\"u}ber den Studiengang Holzingenieurwesen an der FH Aachen}, series = {Bauen mit Holz}, journal = {Bauen mit Holz}, number = {5}, publisher = {Rudolf M{\"u}ller}, address = {K{\"o}ln}, issn = {0005-6545}, pages = {33 -- 36}, year = {2016}, language = {de} } @inproceedings{PetersonRoethUibel2017, author = {Peterson, Leif Arne and R{\"o}th, Thilo and Uibel, Thomas}, title = {Holzwerkstoffe in Karosseriestrukturen}, series = {Tagungsband Aachener Holzbautagung 2017}, booktitle = {Tagungsband Aachener Holzbautagung 2017}, editor = {Uibel, Thormas and Peterson, Leif Arne and Baumann, Marcus}, issn = {2197-4489}, pages = {34 -- 45}, year = {2017}, language = {de} } @book{UibelPeterson2017, author = {Uibel, Thomas and Peterson, Leif Arne}, title = {Tagungsband Aachener Holzbautagung 2017}, editor = {Uibel, Thomas and Peterson, Leif Arne}, publisher = {FH Aachen}, address = {Aachen}, issn = {2197-4489}, pages = {96 Seiten ; Illustrationen, graph. Darst.}, year = {2017}, language = {de} } @book{UibelPeterson2015, author = {Uibel, Thomas and Peterson, Leif Arne}, title = {Tagungsband Aachener Holzbautagung 2015}, editor = {Uibel, Thomas and Peterson, Leif Arne}, publisher = {FH Aachen}, address = {Aachen}, issn = {2197-4489}, pages = {85 Seiten. , Illustrationen, graph. Darst.}, year = {2015}, language = {de} } @article{LaumannMainzKrahwinkel2017, author = {Laumann, J{\"o}rg and Mainz, Stefan and Krahwinkel, Manuel}, title = {Traglastuntersuchungen an Koppelpfetten bei Biegung um die schwache Achse und Torsion}, series = {Stahlbau}, volume = {86}, journal = {Stahlbau}, number = {11}, publisher = {Wiley}, address = {Weinheim}, issn = {0038-9145}, doi = {10.1002/stab.201710544}, pages = {1005 -- 1016}, year = {2017}, language = {de} } @article{ValeroVitiGualtieri2019, author = {Valero, Daniel and Viti, Nicolo and Gualtieri, Carlo}, title = {Numerical Simulation of Hydraulic Jumps. Part 1: Experimental Data for Modelling Performance Assessment}, series = {Water}, volume = {11}, journal = {Water}, number = {1}, publisher = {MDPI}, address = {Basel}, issn = {2073-4441}, doi = {10.3390/w11010036}, pages = {Art. Nr. 36}, year = {2019}, language = {en} } @article{VitiValeroGualtieri2019, author = {Viti, Nicolo and Valero, Daniel and Gualtieri, Carlo}, title = {Numerical Simulation of Hydraulic Jumps. Part 2: Recent Results and Future Outlook}, series = {Water}, volume = {11}, journal = {Water}, number = {1}, issn = {2073-4441}, doi = {10.3390/w11010028}, pages = {Art. Nr. 28}, year = {2019}, language = {en} } @article{RichterWichernGroempingetal.2020, author = {Richter, L. and Wichern, M. and Gr{\"o}mping, Markus and Robecke, U. and Haberkamp, J.}, title = {Ammonium recovery from process water of digested sludge dewatering by membrane contactors}, series = {Water Practice and Technology}, volume = {15}, journal = {Water Practice and Technology}, number = {1}, publisher = {IWA Publishing}, address = {London}, issn = {1751-231X}, doi = {10.2166/wpt.2020.002}, pages = {84 -- 91}, year = {2020}, abstract = {Membrane contactors are a promising alternative for nitrogen removal and recovery from process water compared to other physicochemical and biological sidestream treatment processes. M{\"u}nster wastewater treatment plant (WWTP) is the first municipal WWTP in Germany operating a full-scale membrane contactor system to improve the nitrogen elimination and recovery efficiency. Factors influencing the operation and membrane performance are investigated in an accompanying research project. Additional operational aspects of the applied membrane modules are investigated in detail using a bench-scale membrane contactor. First results of the full-scale application demonstrate a high nitrogen removal efficiency of >95\%.}, language = {de} } @article{KerresGredigkHoffmannJatheetal.2020, author = {Kerres, Karsten and Gredigk-Hoffmann, Sylvia and Jathe, R{\"u}diger and Orlik, Stefan and Sariyildiz, Mustafa and Schmidt, Torsten and Sympher, Klaus-Jochen and Uhlenbroch, Adrian}, title = {Future approaches for sewer system condition assessment}, series = {Water Practice \& Technology}, journal = {Water Practice \& Technology}, number = {15 (2)}, publisher = {IWA Publishing}, address = {London}, issn = {1751-231X}, doi = {10.2166/wpt.2020.027}, pages = {386 -- 393}, year = {2020}, abstract = {Different analytical approaches exist to describe the structural substance or wear reserve of sewer systems. The aim is to convert engineering assessments of often complex defect patterns into computational algorithms and determine a substance class for a sewer section or manhole. This analytically determined information is essential for strategic rehabilitation planning processes up to network level, as it corresponds to the most appropriate rehabilitation type and can thus provide decision-making support. Current calculation methods differ clearly from each other in parts, so that substance classes determined by the different approaches are only partially comparable with each other. The objective of the German R\&D cooperation project 'SubKanS' is to develop a methodology for classifying the specific defect patterns resulting from the interaction of all the individual defects, and their severities and locations. The methodology takes into account the structural substance of sewer sections and manholes, based on real data and theoretical considerations analogous to the condition classification of individual defects. The result is a catalogue of defect patterns and characteristics, as well as associated structural substance classifications of sewer systems (substance classes). The methodology for sewer system substance classification is developed so that the classification of individual defects can be transferred into a substance class of the sewer section or manhole, eventually taking into account further information (e.g. pipe material, nominal diameter, etc.). The result is a validated methodology for automated sewer system substance classification.}, language = {en} } @article{HahnHebelManz2022, author = {Hahn, Geogr W. and Hebel, Christoph and Manz, W.}, title = {Die neuen Empfehlungen f{\"u}r Verkehrsnachfragemodellierung im Personenverkehr}, series = {Straßenverkehrstechnik}, volume = {66}, journal = {Straßenverkehrstechnik}, number = {10}, publisher = {Kirschbaum Verlag GmbH}, address = {Bonn}, issn = {0039-2219}, doi = {10.53184/SVT10-2022-1}, pages = {721 -- 726}, year = {2022}, abstract = {Die neu erschienenen „Empfehlungen zum Einsatz von Verkehrsnachfragemodellen f{\"u}r den Personenverkehr" liefern erstmals als Empfehlungspapier der Forschungsgesellschaft f{\"u}r Straßen- und Verkehrswesen einen umfassenden {\"U}berblick zu den verschiedenen Aspekten der Modellierung und geben dem Fachplaner konkrete Hilfestellung f{\"u}r die Konzeption von Nachfragemodellen. Das Empfehlungspapier zielt unter anderem darauf ab, die Erwartungen und das Anspruchsniveau in Hinblick auf Sachgerechtigkeit der Modelle, die erzielbare Modellqualit{\"a}t und den Detaillierungsgrad der Modellaussagen zu harmonisieren.}, language = {de} } @article{EmigHebelSchwark2022, author = {Emig, J. and Hebel, Christoph and Schwark, A.}, title = {Einsatzbereiche f{\"u}r Verkehrsnachfragemodelle}, series = {Straßenverkehrstechnik}, volume = {66}, journal = {Straßenverkehrstechnik}, number = {10}, publisher = {Kirschbaum Verlag GmbH}, address = {Bonn}, issn = {0039-2219}, doi = {10.53184/SVT10-2022-2}, pages = {727 -- 736}, year = {2022}, abstract = {In der Praxis bestehen vielf{\"a}ltige Einsatzbereiche f{\"u}r Verkehrsnachfragemodelle. Mit ihnen k{\"o}nnen Kenngr{\"o}ßen des Verkehrsangebots und der Verkehrsnachfrage f{\"u}r den heutigen Zustand wie auch f{\"u}r zuk{\"u}nftige Zust{\"a}nde bereitgestellt werden, um so die Grundlagen f{\"u}r verkehrsplanerische Entscheidungen zu liefern. Die neuen „Empfehlungen zum Einsatz von Verkehrsnachfragemodellen f{\"u}r den Personenverkehr" (EVNM-PV) (FGSV 2022) veranschaulichen anhand von typischen Planungsaufgaben, welche differenzierten Anforderungen daraus f{\"u}r die Modellkonzeption und -erstellung resultieren. Vor dem Hintergrund der konkreten Aufgabenstellung sowie deren spezifischer planerischer Anforderungen bildet die abzuleitende Modellspezifikation die verabredete Grundlage zwischen Auftraggeber und Modellersteller f{\"u}r die konkrete inhaltliche, fachliche Ausgestaltung des Verkehrsmodells.}, language = {de} } @article{KindmannKrausLaumannetal.2022, author = {Kindmann, Rolf and Kraus, Matthias and Laumann, J{\"o}rg and Vette, Jan}, title = {Verallgemeinerte Berechnungsmethode f{\"u}r in Beton eingespannte Stahlprofile - Einspanntiefen, Tragf{\"a}higkeitsnachweise und Bemessungshilfen}, series = {Stahlbau}, volume = {93}, journal = {Stahlbau}, number = {Early View}, publisher = {Ernst \& Sohn GmbH}, address = {Berlin}, issn = {1437-1049}, doi = {10.1002/stab.202200024}, pages = {1 -- 25}, year = {2022}, abstract = {St{\"u}tzen und Tr{\"a}ger aus Stahlprofilen k{\"o}nnen in Fundamente oder W{\"a}nde aus Stahlbeton einbetoniert werden. Diese Anschl{\"u}sse wirken in der Regel wie Einspannungen, die eine ausreichende Einspanntiefe erfordern. Im Folgenden wird eine verallgemeinerte Berechnungsmethode f{\"u}r in Stahlbetonkonstruktionen eingespannte Stahlprofile aus gewalzten I-Profilen, geschweißten I-Profilen, runden Hohlprofilen, eckigen Hohlprofilen und einzelligen Kastenquerschnitten vorgestellt. F{\"u}r Beanspruchungen infolge einachsiger Biegung um die starke und schwache Profilachse werden der profilabh{\"a}ngige Ansatz der Betondruckspannungen im Einspannbereich und die Ermittlung der Einspanntiefe behandelt. Unter Ber{\"u}cksichtigung der Normalkraft werden an den maßgebenden Stellen Tragf{\"a}higkeitsnachweise f{\"u}r die Stahlprofile gef{\"u}hrt. Als Erg{\"a}nzung zu den Berechnungsformeln werden Bemessungshilfen zur Verf{\"u}gung gestellt, die die Wahl der mitwirkenden Breiten und der Einspanntiefen erleichtert.}, language = {de} } @book{LaumannFeldmannFrickeletal.2022, author = {Laumann, J{\"o}rg and Feldmann, Markus and Frickel, J{\"o}rg and Krahwinkel, Manuel and Kraus, Matthias and Strangh{\"o}ner, Natalie and Ummenhofer, Thomas}, title = {Petersen Stahlbau : Grundlagen der Berechnung und baulichen Ausbildung von Stahlbauten}, edition = {5. Auflage}, publisher = {Springer Vieweg}, address = {Wiesbaden}, isbn = {978-3-658-20510-2}, doi = {10.1007/978-3-658-20510-2}, pages = {XXIII, 1919 Seiten}, year = {2022}, abstract = {Die Theorie und Konstruktion der wichtigsten Bereiche der Stahlbautechnik werden von den Grundlagen her entwickelt und durch viele Beispiele praxisbezogen erl{\"a}utert. Das Buch ist aus Vorlesungen im Grund- und Vertiefungsstudium des Bauingenieurwesens entstanden. Der Inhalt wird zum Teil systematisch, zum Teil exemplarisch dargestellt. F{\"u}r Konstrukteure und Statiker in den technischen B{\"u}ros, der Beratenden Ingenieure und der Pr{\"u}f{\"a}mter enth{\"a}lt das Buch aufbereitete Berechnungsverfahren und Konstruktionsvorschl{\"a}ge in großer Zahl.}, language = {de} } @techreport{GeisslerProkopBubneretal.2015, author = {Geißler, Karsten and Prokop, Ines and Bubner, Andr{\´e} and Egner, Ralf and Heyde, Stefan and Kempkes, Marian and K{\"u}hn, Bertram and Laumann, J{\"o}rg and Lieberwirth, Peter and Naumes, Johannes and Ruga, Julija and Schilling, Sivo and Schmidt, Herbert and Ummenhofer, Thomas}, title = {Verbesserung der Praxistauglichkeit der Baunormen durch pr{\"a}normative Arbeit - Teilantrag 3: Stahlbau, Abschlussbericht}, publisher = {Fraunhofer IRB Verlag}, address = {Stuttgart}, isbn = {978-3-8167-9539-1}, pages = {130 Seiten}, year = {2015}, language = {de} } @article{HoerenbaumLaumannProkop2016, author = {H{\"o}renbaum, Christoph and Laumann, J{\"o}rg and Prokop, Ines}, title = {Zur Anwendung des Eurocode 3 Teil 1-2 f{\"u}r die Heißbemessung und Anregungen f{\"u}r dessen Novellierung}, series = {Stahlbau}, volume = {85}, journal = {Stahlbau}, number = {6}, publisher = {Ernst \& Sohn GmbH}, address = {Berlin}, issn = {1437-1049}, doi = {10.1002/stab.201610382}, pages = {429 -- 434}, year = {2016}, abstract = {Die Eurocodes werden bis zum Jahr 2020 im Europ{\"a}ischen Komitee f{\"u}r Normung (CEN), Technisches Komitee TC 250, {\"u}berarbeitet. In Vorbereitung auf die Eurocode-Novellierung haben engagierte Ingenieure im Rahmen der Initiative PraxisRegeln Bau (PRB) die f{\"u}r die praktische Anwendung h{\"a}ufig genutzten Teile des Eurocode 3 untersucht. Mit dem Ziel, die Praxistauglichkeit des Eurocode 3 f{\"u}r die Heißbemessung zu verbessern, wurden die bestehende Norm EN 1993 Teil 1-2 insbesondere in Bezug auf die Anwenderfreundlichkeit analysiert und Vorschl{\"a}ge f{\"u}r die europ{\"a}ische Novellierung erarbeitet. Die Analysen zeigen, dass durch Umstrukturierungen und durch die Einf{\"u}hrung von Tabellen die Verst{\"a}ndlichkeit und Anwenderfreundlichkeit der Regeln f{\"u}r die Heißbemessung bedeutend erh{\"o}ht werden k{\"o}nnen.}, language = {de} } @article{Hoettges2017, author = {H{\"o}ttges, J{\"o}rg}, title = {QKan - Management of drainage system data with QGIS}, series = {Free and Open Source Software for Geospatial (FOSS4G) Conference Proceedings}, volume = {17}, journal = {Free and Open Source Software for Geospatial (FOSS4G) Conference Proceedings}, number = {Article 13}, pages = {95 -- 100}, year = {2017}, language = {en} } @incollection{Sparla2019, author = {Sparla, Peter}, title = {Vermessung}, series = {{\"U}bungsaufgaben und Berechnungen f{\"u}r den Baubetrieb}, booktitle = {{\"U}bungsaufgaben und Berechnungen f{\"u}r den Baubetrieb}, publisher = {Springer Vieweg}, address = {Wiesbaden}, isbn = {978-3-658-23127-9}, doi = {10.1007/978-3-658-23127-9_2}, pages = {13 -- 61}, year = {2019}, language = {de} } @incollection{Ulke2019, author = {Ulke, Bernd}, title = {Der baurechtliche Vertrag}, series = {{\"U}bungsaufgaben und Berechnungen f{\"u}r den Baubetrieb}, booktitle = {{\"U}bungsaufgaben und Berechnungen f{\"u}r den Baubetrieb}, publisher = {Springer Vieweg}, address = {Wiesbaden}, isbn = {978-3-658-23127-9}, pages = {63 -- 87}, year = {2019}, abstract = {Anhand von kurzen theoretischen Einf{\"u}hrungen werden anhand von Beispielen die wesentlichen Aspekte des baurechtlichen Vertrages erl{\"a}utert. Nach einer Einf{\"u}hrung {\"u}ber das Zustandekommen von (Bau-) Vertr{\"a}gen wird die f{\"u}r Streitf{\"a}lle unerl{\"a}ssliche Dokumentation auf Baustellen erl{\"a}utert. Hierbei werden Hinweise zur Erstellung von Protokollen, zum E-Mail bei Großprojekten und zur Dokumentation von Stundenlohnarbeiten gegeben. Des Weiteren wird eine Schriftverkehrsliste vorgestellt, die zur Nachverfolgung des Schriftverkehrs bei Großprojekten unerl{\"a}sslich ist. Anschließend werden die typischen Vertragsarten vorgestellt, die bei der Abwicklung von Großprojekten zu beachten sind und die Unterschiede werden durch Fallbeispiele erl{\"a}utert. Einen Schwerpunkt des Kapitels bilden auftragsnehmerseitige Verz{\"u}ge sowie mangelbehaftete Leistungen. Hier werden Hinweise gegeben, wie in den entsprechenden Situationen zu reagieren ist.}, language = {de} } @incollection{Ulke2019, author = {Ulke, Bernd}, title = {Baukosten und Finanzierung}, series = {{\"U}bungsaufgaben und Berechnungen f{\"u}r den Baubetrieb}, booktitle = {{\"U}bungsaufgaben und Berechnungen f{\"u}r den Baubetrieb}, publisher = {Springer Vieweg}, address = {Wiesbaden}, isbn = {978-3-658-23127-9}, doi = {10.1007/978-3-658-23127-9_4}, pages = {89 -- 100}, year = {2019}, language = {de} } @incollection{Ulke2019, author = {Ulke, Bernd}, title = {Arbeitsvorbereitung und Ablaufplanung}, series = {{\"U}bungsaufgaben und Berechnungen f{\"u}r den Baubetrieb}, booktitle = {{\"U}bungsaufgaben und Berechnungen f{\"u}r den Baubetrieb}, publisher = {Springer Vieweg}, address = {Wiesbaden}, isbn = {978-3-658-23127-9}, doi = {10.1007/978-3-658-23127-9_6}, pages = {117 -- 154}, year = {2019}, language = {de} } @incollection{Ulke2019, author = {Ulke, Bernd}, title = {Boden, Baugrube, Verbau}, series = {{\"U}bungsaufgaben und Berechnungen f{\"u}r den Baubetrieb}, booktitle = {{\"U}bungsaufgaben und Berechnungen f{\"u}r den Baubetrieb}, publisher = {Springer Vieweg}, address = {Wiesbaden}, isbn = {978-3-658-23127-9 (Online)}, doi = {10.1007/978-3-658-23127-9_8}, pages = {165 -- 239}, year = {2019}, abstract = {Im folgenden Kapitel werden die wichtigsten geotechnischen Nachweise sowie praxisnahe Beispiele f{\"u}r den Baubetrieb aufgef{\"u}hrt. Es wird im Wesentlichen auf die Bodenbeschreibung und Klassifikation nach DIN 18196 sowie nach DIN 18300 eingegangen, welche sowohl f{\"u}r die weiteren Berechnungen als auch f{\"u}r die Kalkulation von großer Bedeutung sind. Die aus der Praxis aufgef{\"u}hrten Beispiele verdeutlichen verschiedene Untersuchungs- und Auswertungsmethoden f{\"u}r direkte und indirekte Aufschl{\"u}sse, diese enthalten Labor- und Feldversuche, mit denen man die Verdichtbarkeit von B{\"o}den auswertet und quantifiziert, sowie viele andere Themenbereiche wie Erddruckberechnungen sowie Spannungs- und Setzungsberechnungen. Dar{\"u}ber hinaus werden exemplarisch bestimmte Verbauarten bez{\"u}glich ihrer Bemessung erl{\"a}utert. Es wird ebenfalls auf das Thema Wasserhaltung eingegangen und die erforderlichen Maßnahmen beschrieben, um bestimmte Versagensmechanismen - wie z.B. den hydraulischen Grundbruch - zu verhindern.}, language = {de} } @incollection{Lemke2019, author = {Lemke, J{\"o}rg}, title = {Arbeitssicherheit}, series = {{\"U}bungsaufgaben und Berechnungen f{\"u}r den Baubetrieb}, booktitle = {{\"U}bungsaufgaben und Berechnungen f{\"u}r den Baubetrieb}, publisher = {Springer Vieweg}, address = {Wiesbaden}, isbn = {978-3-658-23127-9}, doi = {10.1007/978-3-658-23127-9_12}, pages = {335 -- 344}, year = {2019}, language = {de} } @inproceedings{DuffnerMoorkampPetersonetal.2018, author = {Duffner, Markus and Moorkamp, Wilfried and Peterson, Leif Arne and Uibel, Thomas}, title = {Untersuchungen zur Tragf{\"a}higkeit und Steifigkeit eines neuartigen Wandelements in Holzbauweisen}, series = {Doktorandenkolloquium Holzbau Forschung + Praxis : Stuttgart, 08./09. M{\"a}rz 2018}, booktitle = {Doktorandenkolloquium Holzbau Forschung + Praxis : Stuttgart, 08./09. M{\"a}rz 2018}, editor = {Kuhlmann, Ulrike}, publisher = {Universit{\"a}t Stuttgart, Institut f{\"u}r Konstruktion und Entwurf}, address = {Stuttgart}, pages = {131 -- 139}, year = {2018}, language = {de} } @article{GronsfeldJoachimMalecha2019, author = {Gronsfeld, Richard and Joachim, Klubert and Malecha, Hartmut}, title = {3-D-Visualisierung von vorhandenen Staubauwerken zur holistischen Planung und {\"U}berwachung}, series = {Wasserwirtschaft}, volume = {109}, journal = {Wasserwirtschaft}, number = {5}, publisher = {Springer}, address = {Berlin}, issn = {2192-8762}, doi = {10.1007/s35147-019-0075-x}, pages = {82 -- 85}, year = {2019}, language = {de} } @article{KuhnhenneRegerPyschnyetal.2020, author = {Kuhnhenne, Markus and Reger, Vitali and Pyschny, Dominik and D{\"o}ring, Bernd}, title = {Influence of airtightness of steel sandwich panel joints on heat losses}, series = {E3S Web of Conferences 12th Nordic Symposium on Building Physics (NSB 2020)}, volume = {172}, journal = {E3S Web of Conferences 12th Nordic Symposium on Building Physics (NSB 2020)}, number = {Art. 05008}, publisher = {EDP Sciences}, address = {Les Ulis}, doi = {10.1051/e3sconf/202017205008}, pages = {6}, year = {2020}, abstract = {Energy saving ordinances requires that buildings must be designed in such a way that the heat transfer surface including the joints is permanently air impermeable. The prefabricated roof and wall panels in lightweight steel constructions are airtight in the area of the steel covering layers. The sealing of the panel joints contributes to fulfil the comprehensive requirements for an airtight building envelope. To improve the airtightness of steel sandwich panels, additional sealing tapes can be installed in the panel joint. The influence of these sealing tapes was evaluated by measurements carried out by the RWTH Aachen University - Sustainable Metal Building Envelopes. Different installation situations were evaluated by carrying out airtightness tests for different joint distances. In addition, the influence on the heat transfer coefficient was also evaluated using the Finite Element Method (FEM). The combination of obtained air volume flow and transmission losses enables to create an "effective heat transfer coefficient" due to transmission and infiltration. This summarizes both effects in one value and is particularly helpful for approximate calculations on energy efficiency.}, language = {en} } @inproceedings{UibelMoorkamp2018, author = {Uibel, Thomas and Moorkamp, Wilfried}, title = {Geh- und Radwegbr{\"u}cken in NRW - Bestandsanalyse und Perspektiven}, series = {Holzbr{\"u}ckenbau in der Offensive : Erhaltung, Ert{\"u}chtigung, Neubauten : 5. Internationale Holzbr{\"u}ckentage (IHB 2018) FILharmonie Filderstadt, Filderstadt/Stuttgart (DE), 17./18. April 2018}, booktitle = {Holzbr{\"u}ckenbau in der Offensive : Erhaltung, Ert{\"u}chtigung, Neubauten : 5. Internationale Holzbr{\"u}ckentage (IHB 2018) FILharmonie Filderstadt, Filderstadt/Stuttgart (DE), 17./18. April 2018}, publisher = {forum-holzbau}, address = {Biel}, isbn = {978-3-906226-19-4}, pages = {19 -- 32}, year = {2018}, language = {de} } @inproceedings{JockwerKleiberUibel2018, author = {Jockwer, R. and Kleiber, M. and Uibel, Thomas}, title = {Criteria for Evaluating the Simplification of Design Rules for Dowel-type Fasteners}, series = {International Network on Timber Engineering Research, INTER : proceedings, meeting 51, 10 - 13 August 2016, Tallinn, Estonia}, booktitle = {International Network on Timber Engineering Research, INTER : proceedings, meeting 51, 10 - 13 August 2016, Tallinn, Estonia}, editor = {G{\"o}rlacher, Rainer}, publisher = {Timber Scientific Publishing, KIT Holzbau und Baukonstruktionen}, address = {Karlsruhe}, pages = {461 -- 466}, year = {2018}, language = {en} } @inproceedings{BedburThullMoorkampetal.2019, author = {Bedbur, Christian and Thull, J. and Moorkamp, Wilfried and Uibel, Thomas}, title = {Standardbr{\"u}cken f{\"u}r Geh- und Radwege}, series = {Tagungsband 4. Aachener Holzbautagung 2019: 12. und 13. September an der FH Aachen}, booktitle = {Tagungsband 4. Aachener Holzbautagung 2019: 12. und 13. September an der FH Aachen}, publisher = {FH Aachen}, address = {Aachen}, issn = {2197-4489}, pages = {34 -- 45}, year = {2019}, language = {de} } @article{RegerDoeringKuhnhenne2016, author = {Reger, V. and D{\"o}ring, Bernd and Kuhnhenne, M.}, title = {Passive und aktive Maßnahmen zur Fl{\"a}chenk{\"u}hlung im Stahl(leicht)bau}, series = {Bauingenieur}, volume = {91}, journal = {Bauingenieur}, number = {Jul/Aug}, publisher = {VDI Fachmedien}, address = {D{\"u}sseldorf}, issn = {0005-6650}, doi = {10.37544/0005-6650-2016-07-08-63}, pages = {309 -- 316}, year = {2016}, abstract = {Mit steigenden D{\"a}mmstandards und h{\"o}heren Komfortanforderungen der Nutzer ger{\"a}t die Problematik der sommerlichen {\"U}berhitzung zunehmend in den Fokus. Um die {\"U}berhitzung m{\"o}glichst gering zu halten, sind Maßnahmen und L{\"o}sungen zu entwickeln, die den potenziellen K{\"u}hlbedarf eines Geb{\"a}udes vermeiden sowie reduzieren. Im Rahmen des europ{\"a}ischen Forschungsprojektes BATIMASS wurden Techniken untersucht, die die sommerliche Raumtemperatur ohne zus{\"a}tzliche K{\"u}hlung (passiv) oder aber mit energieeffizienter wasserbasierter Fl{\"a}chenk{\"u}hlung (aktiv) reduzieren und die besonders f{\"u}r Geb{\"a}ude in Stahl(leicht)bauweise geeignet sind. Daf{\"u}r wurde die Methodik der thermisch {\"a}quivalenten Decke weiterentwickelt, um das thermische Verhalten von Profilblechdecken in Geb{\"a}uden f{\"u}r beide L{\"o}sungsans{\"a}tze analysieren zu k{\"o}nnen. Dar{\"u}ber hinaus wurde der Einsatz von Phasenwechselmaterial (PCM) zur Steigerung der Speicherf{\"a}higkeit von leichten Decken mit besonders geringer thermischer Masse in Simulationen sowie im Labor untersucht und bewertet.}, language = {de} } @techreport{SansomLawsonTuchoetal.2016, author = {Sansom, M. and Lawson, R.M. and Tucho, R. and Kendrick, C. and Ogden, R. and Resalati, S. and Garay, R. and D{\"o}ring, Bernd and Reger, V. and Gilbert, J. and Heikkinen, J. and Hemmila, K.}, title = {Building in active thermal mass into steel structures (BATIMASS) - EUR 28166EN}, publisher = {Publications Office of the European Union}, address = {Luxembourg}, organization = {European Commission}, isbn = {978-92-79-63176-4}, issn = {1831-9424}, doi = {10.2777/25999}, pages = {147 Seiten}, year = {2016}, abstract = {The main objective of the BATIMASS project was to address how the energy balance in relatively lightweight steel buildings can be improved by building in 'active thermal mass' (ATM) into the building fabric. This was achieved through concept design, dynamic thermal modelling and testing of a number of potentially viable systems and concepts. A significant programme of thermal simulation modelling was undertaken utilising the thermally equivalent slab (TES) concept to model the passive thermal capacity effect of profiled, composite metal floor decks. It is apparent from the modelling results that thermal mass is a highly complex phenomenon which is highly dependent upon building type, occupancy patterns, climate and many other aspects of the building design and servicing strategy. The ATM systems developed, both conceptually and for prototype testing, focussed on water-cooled composite slabs, the Cofradal floor system and the phase change material (PCM) Energain. In addition to laboratory testing of prototypes, whole building monitoring was undertaken at the Kubik building in Spain and the RWTH test building in Germany. Advanced thermal modelling was also undertaken to estimate the likely benefits of the ATM concept designs developed and for comparison with the test results. In addition to thermal testing, structural tests were conducted on composite floor specimens incorporating embedded water pipes. This Final Report presents the results of the activities carried out under this RFCS contract RFSR CT 2012 00033. The work carried out is reported in six major sections corresponding to the technical Work Packages of the project. Only summaries of the work carried out are provided in this report; all work undertaken is fully reported in the formal project deliverables.}, language = {en} } @techreport{LawsonBaddooVanieretal.2013, author = {Lawson, R.M. and Baddoo, N.R. and Vanier, G. and D{\"o}ring, Bernd and Kuhnhenne, M. and Nieminen, J. and Beguin, P. and Herbin, S. and Caroli, G. and Adetunji, I. and Kozlowski, A.}, title = {Renovation of buildings using steel technologies (Robust) - EUR 25335}, publisher = {Publications Office of the European Union}, address = {Luxembourg}, organization = {European Commission}, isbn = {978-92-79-24950-1}, issn = {1831-9424}, doi = {10.2777/97860}, pages = {134 Seiten}, year = {2013}, abstract = {Robust addresses the renovation and improvement of existing residential, industrial and commercial buildings using steel-based technologies, focusing on techniques such as over-cladding, over-roofing and roof-top extensions. Steel-intensive renovation techniques currently on the market were reviewed. Performance criteria were developed for over-cladding systems meeting current regulatory standards, with guidelines on how to achieve appropriate levels of air-tightness.}, language = {en} } @techreport{FeldmannKuhnhenneDoeringetal.2013, author = {Feldmann, M. and Kuhnhenne, M. and D{\"o}ring, Bernd and Pyschny, D. and Lawson, R.M. and Chuter, R.D. and Boudjabeur, S. and Lecomte-Labory, F. and Airaksinen, M. and Heikkinen, J. and Laamanen, J. and Albart, P. and D'Haeyer, R. and Chica, J.A. and Maseda, J.M. and Amundarain, A. and Rips, M.O. and Nu{\~n}ez, J.A. and Mac{\´i}as, O. and Beguin, P. and Ben Larbi, A.}, title = {Energy and thermal improvements for construction in steel (ETHICS) - EUR 26010}, publisher = {Publications Office of the European Union}, address = {Luxembourg}, organization = {European Commission}, isbn = {978-92-79-30789-8}, issn = {1831-9424}, doi = {10.2777/17106}, pages = {136 Seiten}, year = {2013}, abstract = {ETHICS is concerned with evaluating, measuring and making improvements in the thermal and energy performance of steel-clad and steel-framed buildings. It addresses basic building physics performance at a laboratory and full-scale level, and the preparation of design guidance for commercial, industrial and residential buildings. It includes the development of design tools to assist users in assessing whole-building performance, and calibrates these tools against whole-building measurements, which will be obtained from this research. Opportunities for renewable energy and other energy-saving features will be assessed. This project focuses on objectives that are of particular interest for the design of new steel constructions regarding energy efficiency. ETHICS investigates the as-built performance by on-site tests regarding air tightness and heat transfer properties of the building envelope and by monitoring the energy consumption and thermal comfort of selected up-to-date steel buildings. As energy efficiency is a key requirement for design and construction of buildings in the future, this project provides well-founded scientific data, which prove the high energy performance of current steel constructions and work out details for further improvements to maintain and extend the position of steel products in the construction sector.}, language = {en} }