Dokument-ID Dokumenttyp Verfasser/Autoren Herausgeber Haupttitel Abstract Auflage Verlagsort Verlag Erscheinungsjahr Seitenzahl Schriftenreihe Titel Schriftenreihe Bandzahl ISBN Quelle der Hochschulschrift Konferenzname Bemerkung Quelle:Titel Quelle:Jahrgang Quelle:Heftnummer Quelle:Erste Seite Quelle:Letzte Seite URN DOI Zugriffsart Link Abteilungen OPUS4-11087 Konferenzveröffentlichung Neumann, Hannah, ; Adam, Mario, ; Backes, Klaus, ; Börner, Martin, ; Clees, Tanja, ; Doetsch, Christian, ; Glaeser, Susanne, ; Herrmann, Ulf, ulf.herrmann@sij.fh-aachen.de; May, Johanna, ; Rosenthal, Florian, rosenthal@fh-aachen.de; Sauer, Dirk Uwe, ; Stadler, Ingo, Development of open educational resources for renewable energy and the energy transition process The dissemination of knowledge about renewable energies is understood as a social task with the highest topicality. The transfer of teaching content on renewable energies into digital open educational resources offers the opportunity to significantly accelerate the implementation of the energy transition. Thus, in the here presented project six German universities create open educational resources for the energy transition. These materials are available to the public on the internet under a free license. So far there has been no publicly accessible, editable media that cover entire learning units about renewable energies extensively and in high technical quality. Thus, in this project, the content that remains up-to-date for a longer period is appropriately prepared in terms of media didactics. The materials enable lecturers to provide students with in-depth training about technologies for the energy transition. In a particular way, the created material is also suitable for making the general public knowledgeable about the energy transition with scientifically based material. Freiburg International Solar Energy Society 2021 6 Seiten ISES SWC 2021 ISES Solar World Congress, virtual conference 25-29 October 2021 10.18086/swc.2021.47.03 https://doi.org/10.18086/swc.2021.47.03 Fachbereich Energietechnik OPUS4-11086 Konferenzveröffentlichung Niederwestberg, Stefan, ; Schneider, Falko, f.schneider@sij.fh-aachen.de; Teixeira Boura, Cristiano José, boura@sij.fh-aachen.de; Herrmann, Ulf, ulf.herrmann@sij.fh-aachen.de Introduction to a direct irradiated transparent tube particle receiver New materials often lead to innovations and advantages in technical applications. This also applies to the particle receiver proposed in this work that deploys high-temperature and scratch resistant transparent ceramics. With this receiver design, particles are heated through direct-contact concentrated solar irradiance while flowing downwards through tubular transparent ceramics from top to bottom. In this paper, the developed particle receiver as well as advantages and disadvantages are described. Investigations on the particle heat-up characteristics from solar irradiance were carried out with DEM simulations which indicate that particle temperatures can reach up to 1200 K. Additionally, a simulation model was set up for investigating the dynamic behavior. A test receiver at laboratory scale has been designed and is currently being built. In upcoming tests, the receiver test rig will be used to validate the simulation results. The design and the measurement equipment is described in this work. Melville, NY AIP conference proceedings / American Institute of Physics 2022 9 Seiten SOLARPACES 2020 978-0-7354-4195-8 26th International Conference on Concentrating Solar Power and Chemical Energy Systems 28 September-2 October 2020 Freiburg, Germany 2445 / 1 10.1063/5.0086735 https://doi.org/10.1063/5.0086735 Fachbereich Energietechnik OPUS4-11085 Konferenzveröffentlichung Caminos, Ricardo Alexander Chico, ; Schmitz, Pascal, schmitz@sij.fh-aachen.de; Atti, Vikrama, ; Mahdi, Zahra, ; Teixeira Boura, Cristiano José, boura@sij.fh-aachen.de; Sattler, Johannes Christoph, sattler@sij.fh-aachen.de; Herrmann, Ulf, ulf.herrmann@sij.fh-aachen.de; Hilger, Patrick, ; Dieckmann, Simon, Development of a micro heliostat and optical qualification assessment with a 3D laser scanning method The Solar-Institut Jülich (SIJ) and the companies Hilger GmbH and Heliokon GmbH from Germany have developed a small-scale cost-effective heliostat, called "micro heliostat". Micro heliostats can be deployed in small-scale concentrated solar power (CSP) plants to concentrate the sun's radiation for electricity generation, space or domestic water heating or industrial process heat. In contrast to conventional heliostats, the special feature of a micro heliostat is that it consists of dozens of parallel-moving, interconnected, rotatable mirror facets. The mirror facets array is fixed inside a box-shaped module and is protected from weathering and wind forces by a transparent glass cover. The choice of the building materials for the box, tracking mechanism and mirrors is largely dependent on the selected production process and the intended application of the micro heliostat. Special attention was paid to the material of the tracking mechanism as this has a direct influence on the accuracy of the micro heliostat. The choice of materials for the mirror support structure and the tracking mechanism is made in favor of plastic molded parts. A qualification assessment method has been developed by the SIJ in which a 3D laser scanner is used in combination with a coordinate measuring machine (CMM). For the validation of this assessment method, a single mirror facet was scanned and the slope deviation was computed. Melville, NY AIP conference proceedings / American Institute of Physics 2022 8 Seiten SOLARPACES 2020 978-0-7354-4195-8 26th International Conference on Concentrating Solar Power and Chemical Energy Systems 28 September-2 October 2020 Freiburg, Germany 2445 / 1 10.1063/5.0086262 https://doi.org/10.1063/5.0086262 Fachbereich Energietechnik OPUS4-11084 Konferenzveröffentlichung Zahra, Mahdi, ; Phani Srujan, Merige, ; Caminos, Ricardo Alexander Chico, ; Schmitz, Pascal, schmitz@sij.fh-aachen.de; Herrmann, Ulf, ulf.herrmann@sij.fh-aachen.de; Teixeira Boura, Cristiano José, boura@sij.fh-aachen.de; Schmitz, Mark, ; Gielen, Hans, ; Gedle, Yibekal, ; Dersch, Jürgen, Modeling the thermal behavior of solar salt in electrical resistance heaters for the application in PV-CSP hybrid power plants Concentrated Solar Power (CSP) systems are able to store energy cost-effectively in their integrated thermal energy storage (TES). By intelligently combining Photovoltaics (PV) systems with CSP, a further cost reduction of solar power plants is expected, as well as an increase in dispatchability and flexibility of power generation. PV-powered Resistance Heaters (RH) can be deployed to raise the temperature of the molten salt hot storage from 385 °C up to 565 °C in a Parabolic Trough Collector (PTC) plant. To avoid freezing and decomposition of molten salt, the temperature distribution in the electrical resistance heater is investigated in the present study. For this purpose, a RH has been modeled and CFD simulations have been performed. The simulation results show that the hottest regions occur on the electric rod surface behind the last baffle. A technical optimization was performed by adjusting three parameters: Shell-baffle clearance, electric rod-baffle clearance and number of baffles. After the technical optimization was carried out, the temperature difference between the maximum temperature and the average outlet temperature of the salt is within the acceptable limits, thus critical salt decomposition has been avoided. Additionally, the CFD simulations results were analyzed and compared with results obtained with a one-dimensional model in Modelica. Melville, NY AIP conference proceedings / American Institute of Physics 2022 9 Seiten SOLARPACES 2020 978-0-7354-4195-8 26th International Conference on Concentrating Solar Power and Chemical Energy Systems 28 September-2 October 2020 Freiburg, Germany 2445 / 1 10.1063/5.0086268 https://doi.org/10.1063/5.0086268 Fachbereich Energietechnik OPUS4-11080 Konferenzveröffentlichung Mahdi, Zahra, ; Dersch, Jürgen, ; Schmitz, Pascal, schmitz@sij.fh-aachen.de; Dieckmann, Simon, ; Caminos, Ricardo Alexander Chico, ; Teixeira Boura, Cristiano José, boura@sij.fh-aachen.de; Herrmann, Ulf, ulf.herrmann@sij.fh-aachen.de; Schwager, Christian, ; Schmitz, Mark, ; Gielen, Hans, ; Gedle, Yibekal, ; Büscher, Rauno, Technical assessment of Brayton cycle heat pumps for the integration in hybrid PV-CSP power plants The hybridization of Concentrated Solar Power (CSP) and Photovoltaics (PV) systems is a promising approach to reduce costs of solar power plants, while increasing dispatchability and flexibility of power generation. High temperature heat pumps (HT HP) can be utilized to boost the salt temperature in the thermal energy storage (TES) of a Parabolic Trough Collector (PTC) system from 385 °C up to 565 °C. A PV field can supply the power for the HT HP, thus effectively storing the PV power as thermal energy. Besides cost-efficiently storing energy from the PV field, the power block efficiency of the overall system is improved due to the higher steam parameters. This paper presents a technical assessment of Brayton cycle heat pumps to be integrated in hybrid PV-CSP power plants. As a first step, a theoretical analysis was carried out to find the most suitable working fluid. The analysis included the fluids Air, Argon (Ar), Nitrogen (N2) and Carbon dioxide (CO2). N2 has been chosen as the optimal working fluid for the system. After the selection of the ideal working medium, different concepts for the arrangement of a HT HP in a PV-CSP hybrid power plant were developed and simulated in EBSILON®Professional. The concepts were evaluated technically by comparing the number of components required, pressure losses and coefficient of performance (COP). Melville, NY AIP conference proceedings / American Institute of Physics 2022 11 Seiten SOLARPACES 2020 978-0-7354-4195-8 26th International Conference on Concentrating Solar Power and Chemical Energy Systems 28 September-2 October 2020 Freiburg, Germany 2445 / 1 10.1063/5.0086269 https://doi.org/10.1063/5.0086269 Fachbereich Energietechnik OPUS4-11079 Konferenzveröffentlichung Gedle, Yibekal, ; Schmitz, Mark, ; Gielen, Hans, ; Schmitz, Pascal, schmitz@sij.fh-aachen.de; Herrmann, Ulf, ulf.herrmann@sij.fh-aachen.de; Teixeira Boura, Cristiano José, boura@sij.fh-aachen.de; Mahdi, Zahra, mahdi@sij.fh-aachen.de; Caminos, Ricardo Alexander Chico, ; Dersch, Jürgen, Analysis of an integrated CSP-PV hybrid power plant In the past, CSP and PV have been seen as competing technologies. Despite massive reductions in the electricity generation costs of CSP plants, PV power generation is - at least during sunshine hours - significantly cheaper. If electricity is required not only during the daytime, but around the clock, CSP with its inherent thermal energy storage gets an advantage in terms of LEC. There are a few examples of projects in which CSP plants and PV plants have been co-located, meaning that they feed into the same grid connection point and ideally optimize their operation strategy to yield an overall benefit. In the past eight years, TSK Flagsol has developed a plant concept, which merges both solar technologies into one highly Integrated CSP-PV-Hybrid (ICPH) power plant. Here, unlike in simply co-located concepts, as analyzed e.g. in [1] - [4], excess PV power that would have to be dumped is used in electric molten salt heaters to increase the storage temperature, improving storage and conversion efficiency. The authors demonstrate the electricity cost sensitivity to subsystem sizing for various market scenarios, and compare the resulting optimized ICPH plants with co-located hybrid plants. Independent of the three feed-in tariffs that have been assumed, the ICPH plant shows an electricity cost advantage of almost 20% while maintaining a high degree of flexibility in power dispatch as it is characteristic for CSP power plants. As all components of such an innovative concept are well proven, the system is ready for commercial market implementation. A first project is already contracted and in early engineering execution. Melville, NY AIP conference proceedings / American Institute of Physics 2022 9 Seiten SolarPACES 2020 978-0-7354-4195-8 26th International Conference on Concentrating Solar Power and Chemical Energy Systems 28 September-2 October 2020 Freiburg, Germany 2445 / 1 10.1063/5.0086236 https://doi.org/10.1063/5.0086236 Fachbereich Energietechnik OPUS4-11077 Konferenzveröffentlichung Schwager, Christian, ; Angele, Florian, ; Schwarzbözl, Peter, ; Teixeira Boura, Cristiano José, Boura@sij.fh-aachen.de; Herrmann, Ulf, ulf.herrmann@sij.fh-aachen.de Model predictive assistance for operational decision making in molten salt receiver systems Despite the challenges of pioneering molten salt towers (MST), it remains the leading technology in central receiver power plants today, thanks to cost effective storage integration and high cost reduction potential. The limited controllability in volatile solar conditions can cause significant losses, which are difficult to estimate without comprehensive modeling [1]. This paper presents a Methodology to generate predictions of the dynamic behavior of the receiver system as part of an operating assistance system (OAS). Based on this, it delivers proposals if and when to drain and refill the receiver during a cloudy period in order maximize the net yield and quantifies the amount of net electricity gained by this. After prior analysis with a detailed dynamic two-phase model of the entire receiver system, two different reduced modeling approaches where developed and implemented in the OAS. A tailored decision algorithm utilizes both models to deliver the desired predictions efficiently and with appropriate accuracy. Melville, NY AIP conference proceedings / American Institute of Physics 2023 8 Seiten SolarPACES: Solar Power & Chemical Energy Systems 978-0-7354-4623-6 27th International Conference on Concentrating Solar Power and Chemical Energy Systems 27 September-1 October 2021 Online 2815 / 1 10.1063/5.0151514 https://doi.org/10.1063/5.0151514 Fachbereich Energietechnik OPUS4-11076 Konferenzveröffentlichung Schulte, Jonas, j.schulte@sij.fh-aachen.de; Schwager, Christian, ; Noureldin, Kareem, ; May, Martin, ; Teixeira Boura, Cristiano José, boura@sij.fh-aachen.de; Herrmann, Ulf, ulf.herrmann@sij.fh-aachen.de Gradient controlled startup procedure of a molten-salt power-to-heat energy storage plant based on dynamic process simulation The integration of high temperature thermal energy storages into existing conventional power plants can help to reduce the CO2 emissions of those plants and lead to lower capital expenditures for building energy storage systems, due to the use of synergy effects [1]. One possibility to implement that, is a molten salt storage system with a powerful power-to-heat unit. This paper presents two possible control concepts for the startup of the charging system of such a facility. The procedures are implemented in a detailed dynamic process model. The performance and safety regarding the film temperatures at heat transmitting surfaces are investigated in the process simulations. To improve the accuracy in predicting the film temperatures, CFD simulations of the electrical heater are carried out and the results are merged with the dynamic model. The results show that both investigated control concepts are safe regarding the temperature limits. The gradient controlled startup performed better than the temperature-controlled startup. Nevertheless, there are several uncertainties that need to be investigated further. Melville, NY AIP conference proceedings / American Institute of Physics 2023 9 Seiten SolarPACES: Solar Power & Chemical Energy Systems 978-0-7354-4623-6 27th International Conference on Concentrating Solar Power and Chemical Energy Systems 27 September-1 October 2021 Online 2815 / 1 10.1063/5.0148741 https://doi.org/10.1063/5.0148741 Fachbereich Energietechnik OPUS4-11069 Konferenzveröffentlichung Lahrs, Lennart, ; Krisam, Pierre, ; Herrmann, Ulf, ulf.herrmann@sij.fh-aachen.de Envisioning a collaborative energy system planning platform for the energy transition at the district level Residential and commercial buildings account for more than one-third of global energy-related greenhouse gas emissions. Integrated multi-energy systems at the district level are a promising way to reduce greenhouse gas emissions by exploiting economies of scale and synergies between energy sources. Planning district energy systems comes with many challenges in an ever-changing environment. Computational modelling established itself as the state-of-the-art method for district energy system planning. Unfortunately, it is still cumbersome to combine standalone models to generate insights that surpass their original purpose. Ideally, planning processes could be solved by using modular tools that easily incorporate the variety of competing and complementing computational models. Our contribution is a vision for a collaborative development and application platform for multi-energy system planning tools at the district level. We present challenges of district energy system planning identified in the literature and evaluate whether this platform can help to overcome these challenges. Further, we propose a toolkit that represents the core technical elements of the platform. Lastly, we discuss community management and its relevance for the success of projects with collaboration and knowledge sharing at their core. Procedings of ECOS 2023 2023 7 The 36th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems 25-30 JUNE, 2023, Las Palmas de Gran Canaria, Spain 3163 3170 10.52202/069564-0284 https://doi.org/10.52202/069564-0284 Fachbereich Energietechnik OPUS4-11067 Konferenzveröffentlichung Schulte, Jonas, j.schulte@sij.fh-aachen.de; Schwager, Christian, ; Frantz, Cathy, ; Schloms, Felix, ; Teixeira Boura, Cristiano José, boura@sij.fh-aachen.de; Herrmann, Ulf, ulf.herrmann@sij.fh-aachen.de Control concept for a molten salt receiver in star design: Development, optimization and testing with cloud passage scenarios A promising approach to reduce the system costs of molten salt solar receivers is to enable the irradiation of the absorber tubes on both sides. The star design is an innovative receiver design, pursuing this approach. The unconventional design leads to new challenges in controlling the system. This paper presents a control concept for a molten salt receiver system in star design. The control parameters are optimized in a defined test cycle by minimizing a cost function. The control concept is tested in realistic cloud passage scenarios based on real weather data. During these tests, the control system showed no sign of unstable behavior, but to perform sufficiently in every scenario further research and development like integrating Model Predictive Controls (MPCs) need to be done. The presented concept is a starting point to do so. Hannover TIB Open Publishing 2022 9 Seiten SolarPACES conference proceedings 28th International Conference on Concentrating Solar Power and Chemical Energy Systems, 27-30 September, Albuquerque, NM, USA Vol. 1 10.52825/solarpaces.v1i.693 https://doi.org/10.52825/solarpaces.v1i.693 Fachbereich Energietechnik OPUS4-11066 Konferenzveröffentlichung Schwager, Christian, ; Angele, Florian, ; Nouri, Bijan, ; Schwarzbözl, Peter, ; Teixeira Boura, Cristiano José, boura@sij.fh-aachen.de; Herrmann, Ulf, ulf.herrmann@sij.fh-aachen.de Impact of DNI forecast quality on performance prediction for a commercial scale solar tower: Application of nowcasting DNI maps to dynamic solar tower simulation Concerning current efforts to improve operational efficiency and to lower overall costs of concentrating solar power (CSP) plants with prediction-based algorithms, this study investigates the quality and uncertainty of nowcasting data regarding the implications for process predictions. DNI (direct normal irradiation) maps from an all-sky imager-based nowcasting system are applied to a dynamic prediction model coupled with ray tracing. The results underline the need for high-resolution DNI maps in order to predict net yield and receiver outlet temperature realistically. Furthermore, based on a statistical uncertainty analysis, a correlation is developed, which allows for predicting the uncertainty of the net power prediction based on the corresponding DNI forecast uncertainty. However, the study reveals significant prediction errors and the demand for further improvement in the accuracy at which local shadings are forecasted. Hannover TIB Open Publishing 2022 9 Seiten SolarPACES conference proceedings 28th International Conference on Concentrating Solar Power and Chemical Energy Systems, 27-30 September, Albuquerque, NM, USA Vol. 1 10.52825/solarpaces.v1i.675 https://doi.org/10.52825/solarpaces.v1i.675 Fachbereich Energietechnik OPUS4-11063 Konferenzveröffentlichung Sattler, Johannes Christoph, sattler@sij.fh-aachen.de; Atti, Vikrama, ; Alexopoulos, Spiros, alexopoulos@sij.fh-aachen.de; Teixeira Boura, Cristiano José, Boura@sij.fh-aachen.de; Herrmann, Ulf, ulf.herrmann@sij.fh-aachen.de; Dutta, Siddharth, ; Kioutsioukis, Ioannis, DNI forecast tool for the smart operation of a parabolic trough collector system with concrete thermal energy storage: Theory, results and outlook This work presents a basic forecast tool for predicting direct normal irradiance (DNI) in hourly resolution, which the Solar-Institut Jülich (SIJ) is developing within a research project. The DNI forecast data shall be used for a parabolic trough collector (PTC) system with a concrete thermal energy storage (C-TES) located at the company KEAN Soft Drinks Ltd in Limassol, Cyprus. On a daily basis, 24-hour DNI prediction data in hourly resolution shall be automatically produced using free or very low-cost weather forecast data as input. The purpose of the DNI forecast tool is to automatically transfer the DNI forecast data on a daily basis to a main control unit (MCU). The MCU automatically makes a smart decision on the operation mode of the PTC system such as steam production mode and/or C-TES charging mode. The DNI forecast tool was evaluated using historical data of measured DNI from an on-site weather station, which was compared to the DNI forecast data. The DNI forecast tool was tested using data from 56 days between January and March 2022, which included days with a strong variation in DNI due to cloud passages. For the evaluation of the DNI forecast reliability, three categories were created and the forecast data was sorted accordingly. The result was that the DNI forecast tool has a reliability of 71.4 % based on the tested days. The result fulfils SIJ's aim to achieve a reliability of around 70 %, but SIJ aims to still improve the DNI forecast quality. Hannover TIB Open Publishing 2022 9 Seiten SolarPACES conference proceedings 28th International Conference on Concentrating Solar Power and Chemical Energy Systems, 27-30 September, Albuquerque, NM, USA VOL. 1 10.52825/solarpaces.v1i.731 https://doi.org/10.52825/solarpaces.v1i.731 Fachbereich Energietechnik OPUS4-11062 Konferenzveröffentlichung Sattler, Johannes Christoph, sattler@sij.fh-aachen.de; Schneider, Iesse Peer, ; Angele, Florian, ; Atti, Vikrama, ; Teixeira Boura, Cristiano José, boura@sij.fh-aachen.de; Herrmann, Ulf, ulf.herrmann@sij.fh-aachen.de Development of heliostat field calibration methods: Theory and experimental test results In this work, three patent pending calibration methods for heliostat fields of central receiver systems (CRS) developed by the Solar-Institut Jülich (SIJ) of the FH Aachen University of Applied Sciences are presented. The calibration methods can either operate in a combined mode or in stand-alone mode. The first calibration method, method A, foresees that a camera matrix is placed into the receiver plane where it is subjected to concentrated solar irradiance during a measurement process. The second calibration method, method B, uses an unmanned aerial vehicle (UAV) such as a quadrocopter to automatically fly into the reflected solar irradiance cross-section of one or more heliostats (two variants of method B were tested). The third calibration method, method C, foresees a stereo central camera or multiple stereo cameras installed e.g. on the solar tower whereby the orientations of the heliostats are calculated from the location detection of spherical red markers attached to the heliostats. The most accurate method is method A which has a mean accuracy of 0.17 mrad. The mean accuracy of method B variant 1 is 1.36 mrad and of variant 2 is 1.73 mrad. Method C has a mean accuracy of 15.07 mrad. For method B there is great potential regarding improving the measurement accuracy. For method C the collected data was not sufficient for determining whether or not there is potential for improving the accuracy. Hannover TIB Open Publishing 2022 9 Seiten SolarPACES conference proceedings 28th International Conference on Concentrating Solar Power and Chemical Energy Systems, 27-30 September, Albuquerque, NM, USA Vol. 1 10.52825/solarpaces.v1i.678 https://doi.org/10.52825/solarpaces.v1i.678 Fachbereich Energietechnik OPUS4-10780 Konferenzveröffentlichung Groß, Rolf Fritz, r.gross@fh-aachen.de Möglichkeiten und Grenzen für Forschung an Fachhochschulen 2018 19 Seiten Smart Building Convention und BIMconvention in Aachen im September 10. und 11. September 2018, Aachen weltweit https://aachenbuildingexperts.de/downloads/ Fachbereich Bauingenieurwesen OPUS4-10767 Konferenzveröffentlichung Duran Paredes, Ludwin, ; Mottaghy, Darius, Mottaghy@fh-aachen.de; Herrmann, Ulf, ulf.herrmann@sij.fh-aachen.de; Groß, Rolf Fritz, r.gross@fh-aachen.de Online ground temperature and soil moisture monitoring of a shallow geothermal system with non-conventional components 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. 2020 EGU General Assembly 2020 Online 4-8 May 2020 [Session ERE2.8] EGU2020-19052 weltweit https://doi.org/10.5194/egusphere-egu2020-19052 Fachbereich Bauingenieurwesen OPUS4-10759 Konferenzveröffentlichung Schulze-Buxloh, Lina, schulze-buxloh@fh-aachen.de; Groß, Rolf Fritz, r.gross@fh-aachen.de; Ulbrich, Michelle, michelleulbrich3@gmail.com Digital planning using building information modelling and virtual reality: new approach for students' remote practical training under lockdown conditions in the course of smart building engineering The worldwide Corona pandemic has severely restricted student projects in the higher semesters of engineering courses. In order not to delay the graduation, a new concept had to be developed for projects under lockdown conditions. Therefore, unused rooms at the university should be digitally recorded in order to develop a new usage concept as laboratory rooms. An inventory of the actual state of the rooms was done first by taking photos and listing up all flaws and peculiarities. After that, a digital site measuring was done with a 360° laser scanner and these recorded scans were linked to a coherent point cloud and transferred to a software for planning technical building services and supporting Building Information Modelling (BIM). In order to better illustrate the difference between the actual and target state, two virtual reality models were created for realistic demonstration. During the project, the students had to go through the entire digital planning phases. Technical specifications had to be complied with, as well as documentation, time planning and cost estimate. This project turned out to be an excellent alternative to on-site practical training under lockdown conditions and increased the students' motivation to deal with complex technical questions. San Antonio, TX ISTES Organization 2021 5 Proceedings of International Conference on Education in Mathematics, Science and Technology 2021 978-1-952092-17-6 April 1-4, 2021 in Antalya, Turkey. 118 123 weltweit https://www.istes.org/proceedings-of-international-conference-on-education-in-mathematics-science-and-technology-12-b.html Fachbereich Bauingenieurwesen OPUS4-10749 Konferenzveröffentlichung Schulze-Buxloh, Lina, Schulze-Buxloh@fh-aachen.de; Groß, Rolf Fritz, r.gross@fh-aachen.de Interdisciplinary Course Smart Building Engineering: A new approach of teaching freshmen in remote teamwork project under pandemic restrictions In the context of the Corona pandemic and its impact on teaching like digital lectures and exercises a new concept especially for freshmen in demanding courses of Smart Building Engineering became necessary. As there were hardly any face-to-face events at the university, the new teaching concept should enable a good start into engineering studies under pandemic conditions anyway and should also replace the written exam at the end. The students should become active themselves in small teams instead of listening passively to a lecture broadcast online with almost no personal contact. For this purpose, a role play was developed in which the freshmen had to work out a complete solution to the realistic problem of designing, construction planning and implementing a small guesthouse. Each student of the team had to take a certain role like architect, site manager, BIM-manager, electrician and the technitian for HVAC installations. Technical specifications must be complied with, as well as documentation, time planning and cost estimate. The final project folder had to contain technical documents like circuit diagrams for electrical components, circuit diagrams for water and heating, design calculations and components lists. On the other hand construction schedule, construction implementation plan, documentation of the construction progress and minutes of meetings between the various trades had to be submitted as well. In addition to the project folder, a model of the construction project must also be created either as a handmade model or as a digital 3D-model using Computer-aided design (CAD) software. The first steps in the field of Building information modelling (BIM) had also been taken by creating a digital model of the building showing the current planning status in real time as a digital twin. This project turned out to be an excellent training of important student competencies like teamwork, communication skills, and self -organisation and also increased motivation to work on complex technical questions. The aim of giving the student a first impression on the challenges and solutions in building projects with many different technical trades and their points of view was very well achieved and should be continued in the future. Bologna Filodiritto 2021 4 Seiten New Perspectives in Science Education -International Conference (virtual event, 18-19 March 2021) New Perspectives in Science Education - 10th Edition 18-19 March 2021 Fully Virtual Conference bezahl https://www.filodiritto.com/proceedings Fachbereich Bauingenieurwesen OPUS4-10708 Konferenzveröffentlichung Mohan, Nijanthan, mohan@fh-aachen.de; Groß, Rolf Fritz, R.Gross@fh-aachen.de; Menzel, Karsten, ; Theis, Fabian, Opportunities and Challenges in the Implementation of Building Information Modeling for Prefabrication of Heating, Ventilation and Air Conditioning Systems in Small and Medium-Sized Contracting Companies in Germany - A Case Study FEven though BIM (Building Information Modelling) is successfully implemented in most of the world, it is still in the early stages in Germany, since the stakeholders are sceptical of its reliability and efficiency. The purpose of this paper is to analyse the opportunities and obstacles to implementing BIM for prefabrication. Among all other advantages of BIM, prefabrication is chosen for this paper because it plays a vital role in creating an impact on the time and cost factors of a construction project. The project stakeholders and participants can explicitly observe the positive impact of prefabrication, which enables the breakthrough of the scepticism factor among the small-scale construction companies. The analysis consists of the development of a process workflow for implementing prefabrication in building construction followed by a practical approach, which was executed with two case studies. It was planned in such a way that, the first case study gives a first-hand experience for the workers at the site on the BIM model so that they can make much use of the created BIM model, which is a better representation compared to the traditional 2D plan. The main aim of the first case study is to create a belief in the implementation of BIM Models, which was succeeded by the execution of offshore prefabrication in the second case study. Based on the case studies, the time analysis was made and it is inferred that the implementation of BIM for prefabrication can reduce construction time, ensures minimal wastes, better accuracy, less problem-solving at the construction site. It was observed that this process requires more planning time, better communication between different disciplines, which was the major obstacle for successful implementation. This paper was carried out from the perspective of small and medium-sized mechanical contracting companies for the private building sector in Germany. Southampton WIT Press 2021 10 Seiten WIT Transactions on The Built Environment, Vol. 205 4th International Conference on Building Information Modelling (BIM) in Design, Construction and Operations, 1-3 September 2021. Santiago de Compostela, Spain 117 126 10.2495/BIM210101 weltweit https://www.witpress.com/elibrary/wit-transactions-on-the-built-environment/205/38167 Fachbereich Bauingenieurwesen OPUS4-10706 Konferenzveröffentlichung Schulze-Buxloh, Lina, Schulze-Buxloh@fh-aachen.de; Groß, Rolf Fritz, R.Gross@fh-aachen.de Miniature urban farming plant: a complex educational "Toy" for engineering students Urban farming is an innovative and sustainable way of food production and is becoming more and more important in smart city and quarter concepts. It also enables the production of certain foods in places where they usually dare not produced, such as production of fish or shrimps in large cities far away from the coast. Unfortunately, it is not always possible to show students such concepts and systems in real life as part of courses: visits of such industry plants are sometimes not possible because of distance or are permitted by the operator for hygienic reasons. In order to give the students the opportunity of getting into contact with such an urban farming system and its complex operation, an industrial urban farming plant was set up on a significantly smaller scale. Therefore, all needed technical components like water aeriation, biological and mechanical filtration or water circulation have been replaced either by aquarium components or by self-designed parts also using a 3D-printer. Students from different courses like mechanical engineering, smart building engineering, biology, electrical engineering, automation technology and civil engineering were involved in this project. This "miniature industrial plant" was also able to start operation and has now been running for two years successfully. Due to Corona pandemic, home office and remote online lectures, the automation of this miniature plant should be brought to a higher level in future for providing a good control over the system and water quality remotely. The aim of giving the student a chance to get to know the operation of an urban farming plant was very well achieved and the students had lots of fun in "playing" and learning with it in a realistic way. 2021 4 Seiten The Future of Education 11th Edition 2021 FOE 2021 : The Future of Education International Conference - Fully Virtual Edition; 01.07.2021-02.07.2021; Florence, Italy weltweit https://conference.pixel-online.net/library_scheda.php?id_abs=5179&id_crs=2&id_edition=37&type=conference Fachbereich Bauingenieurwesen OPUS4-10631 Konferenzveröffentlichung Blanke, Tobias, blanke@fh-aachen.de; Schmidt, Katharina S., ; Göttsche, Joachim, goettsche@sij.fh-aachen.de; Döring, Bernd, doering@fh-aachen.de; Frisch, Jérôme, ; van Treeck, Christoph, Weidlich, Anke; Neumann, Dirk; Gust, Gunther; Staudt, Philipp; Schäfer, Mirko Time series aggregation for energy system design: review and extension of modelling seasonal storages 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. Springer Nature 2022 14 Seiten Energy Informatics 5 Proceedings of the 11th DACH+ Conference on Energy Informatics, 15-16 September 2022, Freiburg, Germany. 1, Article number: 17 1 14 10.1186/s42162-022-00208-5 weltweit Online lesen Fachbereich Bauingenieurwesen OPUS4-9653 Konferenzveröffentlichung Sattler, Johannes Christoph, ; Chico Caminos, Ricardo Alexander, ; Atti, Vikrama Nagababu, vikrama.atti@sij.fh-aachen.de; Ürlings, Nicolas, ; Dutta, Siddharth, ; Ruiz, Victor, ; Kalogirou, Soteris, ; Ktistis, Panayiotis, ; Agathokleous, Rafaela, ; Alexopoulos, Spiros, alexopoulos@fh-aachen.de; Teixeira Boura, Cristiano José, ; Herrmann, Ulf, ulf.herrmann@sij.fh-aachen.de Dynamic simulation tool for a performance evaluation and sensitivity study of a parabolic trough collector system with concrete thermal energy storage Melville, NY American Institute of Physics 2020 6 Seiten AIP Conference Proceedings 2303 160004 10.1063/5.0029277 weltweit https://doi.org/10.1063/5.0029277 Solar-Institut Jülich OPUS4-9544 Konferenzveröffentlichung El Moussaoui, Noureddine, ; Kassmi, Khalil, ; Alexopoulos, Spiros, alexopoulos@sij.fh-aachen.de; Schwarzer, Klemens, schwarzer@sij.fh-aachen.de; Chayeb, Hamid, ; Bachiri, Najib, Simulation studies on a new innovative design of a hybrid solar distiller MSDH alimented with a thermal and photovoltaic energy 2021 Materialstoday: Proceedings 10.1016/j.matpr.2021.03.115 bezahl Fachbereich Energietechnik OPUS4-9522 Konferenzveröffentlichung Dümmler, Andreas, duemmler@fh-aachen.de; Oetringer, Kerstin, oetringer@sij.fh-aachen.de; Göttsche, Joachim, goettsche@sij.fh-aachen.de Auslegungstool zur energieeffizienten Kühlung von Gebäuden 2020 11 DKV-Tagung 2020, AA IV Deutsche Kälte- und Klimatagung 2020 online 1 12 bezahl Fachbereich Energietechnik OPUS4-9521 Konferenzveröffentlichung Oetringer, Kerstin, oetringer@sij.fh-aachen.de; Dümmler, Andreas, duemmler@fh-aachen.de; Göttsche, Joachim, goettsche@sij.fh-aachen.de Neues Modell zur 1D-Simulation der indirekten Verdunstungskühlung 2020 12 DKV‐Tagung 2020, AA II.1 Deutsche Kälte- und Klimatagung 2020 online 1 13 bezahl Fachbereich Energietechnik OPUS4-9488 Konferenzveröffentlichung Rendon, Carlos, ; Schwager, Christian, schwager@sij.fh-aachen.de; Ghiasi, Mona, ; Schmitz, Pascal, schmitz@sij.fh-aachen.de; Bohang, Fakhri, ; Caminos, Ricardo Alexander Chico, chico-camino@sij.fh-aachen.de; Teixeira Boura, Cristiano José, boura@sij.fh-aachen.de; Herrmann, Ulf, ulf.herrmann@sij.fh-aachen.de Modeling and upscaling of a pilot bayonettube reactor for indirect solar mixed methane reforming 2020 NaN AIP Conference Proceedings 2303 170012-1 170012-9 10.1063/5.0029974 campus https://doi.org/10.1063/5.0029974 Fachbereich Energietechnik OPUS4-9487 Konferenzveröffentlichung Sattler, Johannes, Christoph, sattler@sij.fh-aachen.de; Caminos, Ricardo Alexander Chico, ; Ürlings, Nicolas, ; Dutta, Siddharth, ; Ruiz, Victor, ; Kalogirou, Soteris, ; Ktistis, Panayiotis, ; Agathokleous, Rafaela, ; Jung, Christian, ; Alexopoulos, Spiros, alexopoulos@sij.fh-aachen.de; Atti, Vikrama Nagababu, vikrama.atti@sij.fh-aachen.de; Teixeira Boura, Cristiano José, boura@sij.fh-aachen.de; Herrmann, Ulf, ulf.herrmann@sij.fh-aachen.de Operational experience and behaviour of a parabolic trough collector system with concrete thermal energy storage for process steam generation in Cyprus 2020 NaN AIP Conference Proceedings 2303 140004-1 140004-10 10.1063/5.0029278 campus https://doi.org/10.1063/5.0029278 Fachbereich Energietechnik OPUS4-9415 Konferenzveröffentlichung Frantz, Cathy, ; Binder, Matthias, ; Busch, Konrad, ; Ebert, Miriam, ; Heinrich, Andreas, ; Kaczmarkiewicz, Nadine, ; Schlögl-Knothe, Bärbel, ; Kunze, Tobias, kunze@sij.fh-aachen.de; Schuhbauer, Christian, ; Stetka, Markus, ; Schwager, Christian, schwager@sij.fh-aachen.de; Spiegel, Michael, ; Teixeira Boura, Cristiano José, boura@sij.fh-aachen.de; Bauer, Thomas, ; Bonk, Alexander, ; Eisen, Stefan, ; Funck, Bernhard, Basic Engineering of a High Performance Molten Salt Tower Receiver System 2020 9 Solar Paces 2020 1 10 weltweit https://www.researchgate.net/profile/Christian_Schuhbauer/publication/345063990 Solar-Institut Jülich OPUS4-9216 Konferenzveröffentlichung Kreyer, Jörg, kreyer@fh-aachen.de; Müller, Marvin, ; Esch, Thomas, esch@fh-aachen.de A Map-Based Model for the Determination of Fuel Consumption for Internal Combustion Engines as a Function of Flight Altitude Bonn Deutsche Gesellschaft für Luft- und Raumfahrt - Lilienthal-Oberth e.V 2020 13 Seiten Deutscher Luft- und Raumfahrtkongress 2019, „Luft- und Raumfahrt – technologische Brücke in die Zukunft“, Darmstadt, 30. September bis 2. Oktober 2019 10.25967/490162 weltweit https://doi.org/10.25967/490162 Fachbereich Luft- und Raumfahrttechnik OPUS4-9101 Konferenzveröffentlichung Sattler, Johannes, Christoph, sattler@sij.fh-aachen.de; Alexopoulos, Spiros, alexopoulos@sij.fh-aachen.de; Caminos, Ricardo Alexander Chico, chico-caminos@sij.fh-aachen.de; Mitchell, John C., ; Ruiz, Victor C., ; Kalogirou, Soteris, ; Ktistis, Panayiotis K., ; Teixeira Boura, Cristiano José, boura@sij.fh-aachen.de; Herrmann, Ulf, ulf.herrmann@sij.fh-aachen.de Dynamic simulation model of a parabolic trough collector system with concrete thermal energy storage for process steam generation 2019 NaN AIP Conference Proceedings 2126 150007-1 150007-8 10.1063/1.5117663 weltweit https://doi.org/10.1063/1.5117663 Fachbereich Energietechnik OPUS4-9100 Konferenzveröffentlichung May, Martin, may@sij.fh-aachen.de; Breitbach, Gerd, breitbach@fh-aachen.de; Alexopoulos, Spiros, alexopoulos@sij.fh-aachen.de; Latzke, Markus, latzke@sij.fh-aachen.de; Bäumer, Klaus, baeumer@sij.fh-aachen.de; Uhlig, Ralf, ; Söhn, Matthias, ; Teixeira Boura, Cristiano José, boura@sij.fh-aachen.de; Herrmann, Ulf, ulf.herrmann@sij.fh-aachen.de Experimental facility for investigations of wire mesh absorbers for pressurized gases 2019 NaN AIP Conference Proceedings 2126 030035-1 030035-9 10.1063/1.5117547 weltweit https://doi.org/10.1063/1.5117547 Fachbereich Energietechnik OPUS4-9099 Konferenzveröffentlichung Mahdi, Zahra, mahdi@sij.fh-aachen.de; Rendón, Carlos, rendon@sij.fh-aachen.de; Schwager, Christian, schwager@sij.fh-aachen.de; Teixeira Boura, Cristiano José, boura@sij.fh-aachen.de; Herrmann, Ulf, ulf.herrmann@sij.fh-aachen.de Novel concept for indirect solar-heated methane reforming Melville, NY AIP Publishing 2019 NaN AIP Conference Proceedings 2126 180014-1 180014-7 10.1063/1.5117694 weltweit https://doi.org/10.1063/1.5117694 Fachbereich Energietechnik OPUS4-9098 Konferenzveröffentlichung Breitbach, Gerd, breitbach@fh-aachen.de; Alexopoulos, Spiros, alexopoulos@sij.fh-aachen.de; May, Martin, may@sij.fh-aachen.de; Teixeira Boura, Cristiano José, boura@sij.fh-aachen.de; Herrmann, Ulf, ulf.herrmann@sij.fh-aachen.de Analysis of volumetric solar radiation absorbers made of wire meshes 2019 NaN AIP Conference Proceedings 2126 030009-1 030009-6 10.1063/1.5117521 weltweit https://doi.org/10.1063/1.5117521 Fachbereich Energietechnik OPUS4-9041 Konferenzveröffentlichung Blanke, Tobias, blanke@fh-aachen.de; Dring, Bernd, ; Vontein, Marius, ; Kuhnhenne, Markus, Climate Change Mitigation Potentials of Vertical Building Integrated Photovoltaic 2018 6 8th International Workshop on Integration of Solar Power into Power Systems : 16-17 October 2018, Stockholm, Sweden 1 7 Solar-Institut Jülich OPUS4-8989 Konferenzveröffentlichung Schwager, Christian, schwager@sij.fh-aachen.de; Teixeira Boura, Cristiano José, boura@sij.fh-aachen.de; Flesch, Robert, ; Alexopoulos, Spiros, alexopoulos@sij.fh-aachen.de; Herrmann, Ulf, ulf.hermann@sij.fh-aachen.de Improved efficiency prediction of a molten salt receiver based on dynamic cloud passage simulation 2019 NaN AIP Conference Proceedings 2126 978-0-7354-1866-0 1 030054-1 030054-8 10.1063/1.5117566 campus https://doi.org/10.1063/1.5117566 Solar-Institut Jülich OPUS4-8951 Konferenzveröffentlichung Gorzalka, Philip, ; Dahlke, Dennis, ; Göttsche, Joachim, goettsche@sij.fh-aachen.de; Israel, Martin, ; Patel, Dhruvkumar, ; Prahl, Christoph, ; Schmiedt, Jacob Estevam, ; Frommholz, Dirk, ; Hoffschmidt, Bernhard, hoffschmidt@sij.fh-aachen.de; Linkiewicz, Magdalena, Building Tomograph-From Remote Sensing Data of Existing Buildings to Building Energy Simulation Input 2018 17 Seiten EBC, Annex 71, Fifth expert meeting, October 17-19, 2018, Innsbruck, Austria weltweit https://elib.dlr.de/123467/1/Building%20Tomograph%20%E2%80%93%20From%20Remote%20Sensing%20Data%20of%20Existing%20Buildings%20to%20Building%20Energy%20Simulation%20Input.pdf Fachbereich Energietechnik OPUS4-8765 Konferenzveröffentlichung Schorn, Christian, schorn@sij.fh-aachen.de; Weis, Fabian, weis@sij.fh-aachen.de; Anthrakidis, Anette, anthrakidis@sij.fh-aachen.de; Schwarzer, Klemens, schwarzer@sij.fh-aachen.de; Schmitz, Mark, ; Herrmann, Ulf, ulf.herrmann@sij.fh-aachen.de Entwicklung und Bewertung eines Parabolrinnenkollektors zur Prozesswärmebereitstellung 2016 12 26. Symposium Thermische Solarenergie, 20.-22.04.2016 in Bad Staffelstein 26. OTTI Symposium Thermische Solarenergie 1 13 https://www.researchgate.net/publication/330702906 Solar-Institut Jülich OPUS4-8753 Konferenzveröffentlichung Anthrakidis, Anette, anthrakidis@sij.fh-aachen.de; Herrmann, Ulf, ulf.herrmann@sij.fh-aachen.de; Schorn, Christian, schorn@sij.fh-aachen.de; Schwarzer, Klemens, schwarzer@sij.fh-aachen.de; Wedding, Philipp, wedding@sij.fh-aachen.de Weiterentwicklung und Erprobung eines neuartigen Verfahrens zur Bestimmung der Effizienz von konzentrierenden solarthermischen Kollektoren 2015 15 Seiten 25. OTTI Symposium Thermische Solarenergie https://www.researchgate.net/publication/330703226 Solar-Institut Jülich OPUS4-8752 Konferenzveröffentlichung Rendon, Carlos, ; Dieckmann, Simon, ; Weidle, Mathias, ; Dersch, Jürgen, ; Teixeira Boura, Cristiano José, ; Polklas, Thomas, ; Kuschel, Marcus, ; Herrmann, Ulf, ulf.herrmann@sij.fh-aachen.de Retrofitting of existing parabolic trough collector power plants with molten salt tower systems 2018 NaN AIP Conference Proceedings 2033 1 030014-1 030014-8 10.1063/1.5067030 https://doi.org/10.1063/1.5067030 Solar-Institut Jülich OPUS4-8750 Konferenzveröffentlichung Sauerborn, Markus, sauerborn@sij.fh-aachen.de; Liebenstund, Lena, ; Raue, Markus, raue@fh-aachen.de; Mang, Thomas, mang@fh-aachen.de; Herrmann, Ulf, ulf.herrmann@sij.fh-aachen.de; Dueing, Andreas, Analytic method for material aging and quality analyzing to forecast long time stability of plastic micro heliostat components 2017 NaN AIP Conference Proceedings 1850 1 030045-1 030045-8 10.1063/1.4984388 weltweit https://doi.org/10.1063/1.4984388 Institut fuer Angewandte Polymerchemie OPUS4-8749 Konferenzveröffentlichung Teixeira Boura, Cristiano José, ; Niederwestberg, Stefan, ; McLeod, Jacqueline, ; Herrmann, Ulf, ulf.herrmann@sij.fh-aachen.de; Hoffschmidt, Bernhard, hoffschmidt@sij.fh-aachen.de Development of heat exchanger for high temperature energy storage with bulk materials 2016 NaN AIP Conference Proceedings 1734 1 050008-1 050008-7 10.1063/1.4949106 https://doi.org/10.1063/1.4949106 Solar-Institut Jülich OPUS4-8746 Konferenzveröffentlichung Anthrakidis, Anette, anthrakidis@sij.fh-aachen.de; Herrmann, Ulf, ulf.herrmann@sij.fh-aachen.de; Schorn, Christian, schorn@sij.fh-aachen.de; Schwarzer, Klemens, schwarzer@sij.fh-aachen.de; Wedding, Philipp, wedding@sij.fh-aachen.de; Weis, Fabian, weis@sij.fh-aachen.de Development and Testing of a Novel Method for the Determination of the Efficiency of Concentrating Solar Thermal Collectors 2015 9 Seiten Conference Proceedings Solar World Congress 2015, Daegu, Korea, 08 – 12 November 2015 weltweit http://proceedings.ises.org/paper/swc2015/swc2015-0114-Schorn.pdf Solar-Institut Jülich OPUS4-7911 Konferenzveröffentlichung Göttsche, Joachim, goettsche@sij.fh-aachen.de; Röther, Sascha, Science College Overbach - Innovatives Bildungszentrum in Jülich-Barmen Preprint der Autoren 2014 6 Seiten 18. Internationale Passivhaustagung, Aachen, April 2014 weltweit Solar-Institut Jülich OPUS4-7909 Konferenzveröffentlichung Göttsche, Joachim, goettsche@sij.fh-aachen.de; Korn, Michael, korn@sij.fh-aachen.de; Amato, Alexandre, The Passivhaus concept for the Arabian Peninsula - An energetic-economical evaluation considering the thermal comfort The Passivhaus building standard is a concept developed for the realization of energy-efficient and economical buildings with a simultaneous high utilization comfort under European climate conditions. Major elements of the Passivhaus concept are a high thermal insulation of the external walls, the use of heat and/or solar shading glazing as well as an airtight building envelope in combination with energy-efficient technical building installations and heating or cooling generators, such as an efficient energy-recovery in the building air-conditioning. The objective of this research project is the inquiry to determine the parameters or constraints under which the Passivhaus concept can be implemented under the arid climate conditions in the Arabian Peninsula to achieve an energy-efficient and economical building with high utilization comfort. In cooperation between the Qatar Green Building Council (QGBC), Barwa Real Estate (BRE) and Kahramaa the first Passivhaus was constructed in Qatar and on the Arabian Peninsula in 2013. The Solar-Institut Jülich of Aachen University of Applied Science supports the Qatar Green Building Council with a dynamic building and equipment simulation of the Passivhaus and the neighbouring reference building. This includes simulation studies with different component configurations for the building envelope and different control strategies for heating or cooling systems as well as the air conditioning of buildings to find an energetic-economical optimum. Part of these analyses is the evaluation of the energy efficiency of the used energy recovery system in the Passivhaus air-conditioning and identification of possible energy-saving effects by the use of a bypass function integrated in the heat exchanger. In this way it is expected that on an annual basis the complete electricity demand of the building can be covered by the roof-integrated PV generator. 2015 8 Seiten QScience Proceedings: Vol 2015 10.5339/qproc.2015.qgbc.38 = abstract - Qatar Green Building Conference 2015 - The Vision, 38. 10.5339/qproc.2015.qgbc.38 weltweit Solar-Institut Jülich OPUS4-7395 Konferenzveröffentlichung Latzke, Markus, latzke@sij.fh-aachen.de; Alexopoulos, Spiros, alexopoulos@sij.fh-aachen.de; Kronhardt, Valentina, kronhardt@sij.fh-aachen.de; Rendón, Carlos, rendon@sij.fh-aachen.de; Sattler, Johannes, Christoph, sattler@sij.fh-aachen.de Comparison of Potential Sites in China for Erecting a Hybrid Solar Tower Power Plant with Air Receiver 2015 7 Energy Procedia International Conference on Concentrating Solar Power and Chemical Energy Systems, SolarPACES 2014, Beijing, China 1327 1334 10.1016/j.egypro.2015.03.142 campus Fachbereich Energietechnik OPUS4-7125 Konferenzveröffentlichung Dersch, Jürgen, ; Geyer, Michael, ; Herrmann, Ulf, ulf.herrmann@sij.fh-aachen.de; Jones, Scott A., ; Kelly, Bruce, ; Kistner, Rainer, ; Ortmanns, Winfried, ; Pitz-Paal, Robert, ; Price, Henry, Pearson, J. Boise Solar Trough Integration Into Combined Cycle Systems ASME 2002 8 Solar engineering 2002 : proceedings of the International Solar Energy Conference ; presented at the 2002 International Solar Energy Conference, a part of Solar 2002 - Sunrise on the Reliable Energy Economy, June 15 - 20, 2002, Reno, Nevada 0-7918-1689-3 351 359 doi:10.1115/SED2002-1072 Solar-Institut Jülich OPUS4-7122 Konferenzveröffentlichung Herrmann, Ulf, ulf.herrmann@sij.fh-aachen.de; Kelly, Bruce, ; Price, Henry, Steinfeld, Aldo Two Tank Molten Salt Storage for Parabolic Trough Solar Power Plants Villingen Paul Scherrer Inst. 2002 7 Proceedings of the 11th SolarPACES International Symposium on Concentrated Solar Power and Chemical Energy Technologies : September 4 - 6, 2002, Zurich, Switzerland / Paul Scherrer Institut, PSI; ETH, Eidgenössische Technische Hochschule Zürich 3-9521409-3-7 517 524 Solar-Institut Jülich OPUS4-7118 Konferenzveröffentlichung Dersch, Jürgen, ; Geyer, Michael, ; Herrmann, Ulf, ulf.herrmann@sij.fh-aachen.de; Jones, Scott A., ; Kelly, Bruce, ; Kistner, Rainer, ; Ortmanns, Winfried, ; Pitz-Paal, Robert, ; Price, Henry, Steinfeld, Aldo Trough integration into power plants : a study on the performance and economy of integrated solar combined cycle systems Villingen Paul Scherrer Inst. 2002 10 Proceedings of the 11th SolarPACES International Symposium on Concentrated Solar Power and Chemical Energy Technologies : September 4 - 6, 2002, Zurich, Switzerland / Paul Scherrer Institut, PSI; ETH, Eidgenössische Technische Hochschule Zürich 3-9521409-3-7 661 671 Solar-Institut Jülich OPUS4-7117 Konferenzveröffentlichung Aringhoff, R., ; Geyer, Michael, ; Herrmann, Ulf, ulf.herrmann@sij.fh-aachen.de; Kistner, Rainer, ; Nava, P., ; Osuna, R., Steinfeld, Aldo AndaSol : 50MW Solar Plants with 9 Hour Storage for Southern Spain Villingen Paul Scherrer Inst. 2002 5 Proceedings of the 11th SolarPACES International Symposium on Concentrated Solar Power and Chemical Energy Technologies : September 4 - 6, 2002, Zurich, Switzerland / Paul Scherrer Institut, PSI; ETH, Eidgenössische Technische Hochschule Zürich 3-9521409-3-7 37 42 Solar-Institut Jülich OPUS4-7115 Konferenzveröffentlichung Lüpfert, E., ; Herrmann, Ulf, ulf.herrmann@sij.fh-aachen.de; Price, Henry, ; Zarza, E., ; Kistener, R., Ramos, C. Towards Standard Performance Analysis for Parabolic Trough Collector Fields [s.l.] Instituto de Investigaciones Electricas 2004 12th International Symposium Solar Power and Chemical Energy Systems, October 6-8, 2004, Oaxaca Mexico ; SolarPACES International Symposium, 12 968-6114-18-1 Bd. nur beim DLR. Daher keine Seitenzahlenermittlung. Solar-Institut Jülich OPUS4-7114 Konferenzveröffentlichung Herrmann, Ulf, ulf.herrmann@sij.fh-aachen.de; Graeter, F., ; Nava, P., Ramos, C. Performance of the SKAL-ET Collector Loop at KJC Operating Company [s.l.] Instituto de Investigaciones Electricas 2004 12th International Symposium Solar Power and Chemical Energy Systems, October 6-8, 2004, Oaxaca Mexico ; SolarPACES International Symposium, 12 968-6114-18-1 Bd. nur beim DLR. Daher keine Seitenzahlenermittlung. Solar-Institut Jülich