TY - CHAP A1 - Sattler, Johannes Christoph A1 - Alexopoulos, Spiros A1 - Chico Caminos, Ricardo Alexander A1 - Mitchell, John C. A1 - Ruiz, Victor C. A1 - Kalogirou, Soteris A1 - Ktistis, Panayiotis K. A1 - Teixeira Boura, Cristiano José A1 - Herrmann, Ulf T1 - Dynamic simulation model of a parabolic trough collector system with concrete thermal energy storage for process steam generation T2 - AIP Conference Proceedings Y1 - 2019 U6 - https://doi.org/10.1063/1.5117663 SN - 0094243X VL - 2126 SP - 150007-1 EP - 150007-8 ER - TY - CHAP A1 - Gömmel, Andreas A1 - Niendorf, Thoralf A1 - Frauenrath, Tobias A1 - Otten, Mario A1 - Butenweg, Christoph A1 - Kob, Malte T1 - 3D vocal fold geometry mapping using Magnetic Resonance Imaging T2 - Fortschritte der Akustik : 36. Deutsche Jahrestagung für Akustik, Band 1 Y1 - 2010 SN - 978-3-9808659-8-2 N1 - Fortschritte der Akustik : 36. Deutsche Jahrestagung für Akustik ; 15.-18. März 2010, Berlin SP - 271 EP - 272 PB - Deutsche Gesellschaft für Akustik CY - Berlin ER - TY - CHAP A1 - Paulsen, Svea A1 - Hoffstadt, Kevin A1 - Krafft, Simone A1 - Leite, A. A1 - Zang, J. A1 - Fonseca-Zang, W. A1 - Kuperjans, Isabel T1 - Continuous biogas production from sugarcane as sole substrate T2 - Energy Reports N2 - A German–Brazilian research project investigates sugarcane as an energy plant in anaerobic digestion for biogas production. The aim of the project is a continuous, efficient, and stable biogas process with sugarcane as the substrate. Tests are carried out in a fermenter with a volume of 10 l. In order to optimize the space–time load to achieve a stable process, a continuous process in laboratory scale has been devised. The daily feed in quantity and the harvest time of the substrate sugarcane has been varied. Analyses of the digester content were conducted twice per week to monitor the process: The ratio of inorganic carbon content to volatile organic acid content (VFA/TAC), the concentration of short-chain fatty acids, the organic dry matter, the pH value, and the total nitrogen, phosphate, and ammonium concentrations were monitored. In addition, the gas quality (the percentages of CO₂, CH₄, and H₂) and the quantity of the produced gas were analyzed. The investigations have exhibited feasible and economical production of biogas in a continuous process with energy cane as substrate. With a daily feeding rate of 1.68gᵥₛ/l*d the average specific gas formation rate was 0.5 m3/kgᵥₛ. The long-term study demonstrates a surprisingly fast metabolism of short-chain fatty acids. This indicates a stable and less susceptible process compared to other substrates. Y1 - 2020 U6 - https://doi.org/10.1016/j.egyr.2019.08.035 N1 - 6th International Conference on Energy and Environment Research, ICEER 2019, 22–25 July, University of Aveiro, Portugal VL - 6 IS - Supplement 1 SP - 153 EP - 158 PB - Elsevier ER - TY - CHAP A1 - Sildatke, Michael A1 - Karwanni, Hendrik A1 - Kraft, Bodo A1 - Schmidts, Oliver A1 - Zündorf, Albert T1 - Automated Software Quality Monitoring in Research Collaboration Projects T2 - ICSEW'20: Proceedings of the IEEE/ACM 42nd International Conference on Software Engineering Workshops N2 - In collaborative research projects, both researchers and practitioners work together solving business-critical challenges. These projects often deal with ETL processes, in which humans extract information from non-machine-readable documents by hand. AI-based machine learning models can help to solve this problem. Since machine learning approaches are not deterministic, their quality of output may decrease over time. This fact leads to an overall quality loss of the application which embeds machine learning models. Hence, the software qualities in development and production may differ. Machine learning models are black boxes. That makes practitioners skeptical and increases the inhibition threshold for early productive use of research prototypes. Continuous monitoring of software quality in production offers an early response capability on quality loss and encourages the use of machine learning approaches. Furthermore, experts have to ensure that they integrate possible new inputs into the model training as quickly as possible. In this paper, we introduce an architecture pattern with a reference implementation that extends the concept of Metrics Driven Research Collaboration with an automated software quality monitoring in productive use and a possibility to auto-generate new test data coming from processed documents in production. Through automated monitoring of the software quality and auto-generated test data, this approach ensures that the software quality meets and keeps requested thresholds in productive use, even during further continuous deployment and changing input data. Y1 - 2020 U6 - https://doi.org/10.1145/3387940.3391478 N1 - ICSE '20: 42nd International Conference on Software Engineering, Seoul, Republic of Korea, 27 June 2020 - 19 July 2020 SP - 603 EP - 610 PB - IEEE CY - New York, NY ER - TY - CHAP A1 - Kaspar, K. A1 - Groebel, Simone A1 - Kuperjans, Isabel A1 - Dielmann, Klaus-Peter A1 - Selmer, Thorsten T1 - Charakterisierung der Biozönose von Biogasfermentern in Abhängigkeit verschiedener Substrate T2 - Biogas 2013 : 6. Innovationskongress, 23. - 24.05.2013, Osnabrück, Tagungsband Y1 - 2013 SN - 978-3-9813776-3-7 SP - 69 EP - 74 PB - Profair Consult+Project CY - Hildesheim ER - TY - CHAP A1 - Höfler, M. A1 - Kneer, R. A1 - Groß, Rolf Fritz A1 - Kehrmann, K. ED - Vorobieff, P. T1 - Chemical determination of oxygen transfer rates, transfer efficiencies and interphases evoked by aeration elements for liquid flows T2 - Computational Methods in Multiphase Flow VIII. - (WIT Transactions on Engineering Sciences ; Volume 89) Y1 - 2015 SN - 978-1-84564-946-3 (Print-Ausgabe) SN - 978-1-84564-947-0 (Online-Ausgabe) SN - 1746-4471 SP - 89 EP - 101 PB - WIT Press CY - Southampton ER - TY - CHAP A1 - Augenstein, Eckardt A1 - Herbergs, S. A1 - Kuperjans, Isabel A1 - Lucas, K. ED - Kjelstrup, Signe T1 - Simulation of industrial energy supply systems with integrated cost optimization T2 - Proceedings of ECOS 2005, the 18th International Conference on Efficiency, Cost, Optimization, Simulation, and Environmental Impact of Energy Systems : Trondheim, Norway, June 20 - 22, 2005. - Vol. 2 Y1 - 2005 SN - 82-519-2041-8 N1 - CD-ROM-Ausg. u.d.T.: Shaping our future energy systems SP - 627 EP - 634 PB - Tapir Academic Press CY - Trondheim ER - TY - CHAP A1 - Küppers, Christine A1 - Groebel, Simone A1 - Kuperjans, Isabel A1 - Dielmann, Klaus-Peter T1 - Molekulargenetische Analysen zur Optimierung der Biogasgewinnung T2 - Biogas 2011 : 4. Innovationskongress ; Effizienzsteigerung von Biogasanlagen ; Vorstellung der 17 besten Biogas-Innovationen der letzten 12 Monate ; 12. - 13. Mai 2011, im ZUK der Deutschen Bundesstiftung Umwelt ; Tagungsband Y1 - 2011 SN - 978-3-9813776-1-3 SP - 45 EP - 48 PB - Profair Consult+Project CY - Hildesheim ER - TY - CHAP A1 - Augenstein, Eckardt A1 - Herbergs, S. A1 - Kuperjans, Isabel T1 - Planung und Bewertung der Gebäudeenergieversorgung mit TOP-Energy T2 - Heizungs- und Raumlufttechnik : 1. Fachtagung Leonberg, 31. Januar bis 1. Februar 2006. - (VDI-Berichte ; Nr. 1921) Y1 - 2006 SN - 3-18-091921-3 N1 - Posterbeitrag SP - 57 EP - 60 PB - VDI-Verl. CY - Düsseldorf ER - TY - CHAP A1 - Kuperjans, Isabel A1 - Schreiber, M. A1 - Determann, L. A1 - Schreiber, R. T1 - Entscheidungsunterstützung bei der Gestaltung der betrieblichen Energieversorgung und -nutzung T2 - Innovationen bei der rationellen Energieanwendung : neue Chancen für die Wirtschaft ; Tagung Dortmund, 3. und 4. März 1998. - (VDI-Berichte ; 1385) Y1 - 1998 SN - 3-18-091385-1 SP - 79 EP - 94 PB - VDI-Verl. CY - Düsseldorf ER - TY - CHAP A1 - Augenstein, Eckardt A1 - Kuperjans, Isabel A1 - Lucas, K. ED - Tsatsaronis,, Georgios T1 - EUSEBIA - Decision-Support-System for Technical, Economical and Ecological Design and Evaluation of Industrial Energy Systems T2 - ECOS 2002 : proceedings of the 15th International Conference on Efficiency, Costs, Optimization, Simulation and Environmental Impact of Energy Systems, Berlin, Germany July 3 - 5, 2002. - Vol. 1 Y1 - 2002 SN - 3-00-009533-0 SP - 446 EP - 453 PB - Techn. Univ., Inst. for Energy Engineering CY - Berlin ER - TY - CHAP A1 - Kumaran, P. A1 - Gopinathan, M. A1 - Razali, N. M. A1 - Kuperjans, Isabel A1 - Hariffin, B. A1 - Hamdan, H. T1 - Preliminary evaluation of atomization characteristics of improved biodiesel for gas turbine application T2 - IOP Conference Series: Earth and Environmental Science (EES) Y1 - 2013 U6 - https://doi.org/10.1088/1755-1315/16/1/012014 SN - 1755-1315 VL - 16 IS - 1 SP - 012014/1 EP - 012014/4 PB - Institute of Physics Publishing (IOP) CY - London [u.a.] ER - TY - CHAP A1 - Birkl, Josef A1 - Diendorfer, Gerhard A1 - Kern, Alexander A1 - Thern, Stephan T1 - Extremely high lightning peak currents T2 - 34th International Conference on Ligntning Protection, 02-07 September 2018 Y1 - 2018 SN - 978-1-5386-6635-7 ER - TY - CHAP A1 - Augenstein, Eckardt A1 - Kuperjans, Isabel T1 - Softwaregestützte Analyse und Konzeption betrieblicher Energieversorgungsanlagen T2 - Fortschrittliche Energiewandlung und -anwendung : Schwerpunkt: dezentrale Energiesysteme ; Tagung Bochum, 13. und 14. März 2001. - (VDI-Berichte ; 1594) Y1 - 2001 SN - 3-18-091594-3 SP - 313 EP - 322 PB - VDI-Verl. CY - Düsseldorf ER - TY - CHAP A1 - Kuperjans, Isabel A1 - Augenstein, Eckardt T1 - „EUSEBIA – Software zur Analyse und Verbesserung der betrieblichen Energiewirtschaft T2 - Optimierung in der Energieversorgung : Tagung Veitshöchheim, 9. und 10. Oktober 2001. - (VDI-Berichte ; 1627) Y1 - 2001 SN - 3-18-091627-3 SP - 267 EP - 268 PB - VDI-Verl. CY - Düsseldorf ER - TY - CHAP A1 - Kuperjans, Isabel A1 - Seitz, C.-W. A1 - Wilhelm, H.-G. T1 - Realisierung einer Fernwärmeversorgung mit Kraft-Wärme-Kopplung für den Wohnwertpark Brühl T2 - Energiemanagement in Kommunen und öffentlichen Einrichtungen : Tagung Stuttgart, 16. und 17. September 1998. - (VDI-Berichte ; 1424) Y1 - 1998 SN - 3-18-091424-6 SP - 129 EP - 138 PB - VDI-Verl. CY - Düsseldorf ER - TY - CHAP A1 - Kuperjans, Isabel A1 - Terpitz, J. A1 - Terruhn, H. A1 - Wilhelm, H.-G. T1 - Simulation zur Konzeption und Analyse betrieblicher und kommunaler Nahwärmesysteme T2 - Betriebliches Energiemanagement : Tagung Cottbus, 30. und 31. März 1999. - (VDI-Berichte ; 1462) Y1 - 1999 SN - 3-18-091462-9 SP - 195 EP - 204 PB - VDI-Verl. CY - Düsseldorf ER - TY - CHAP A1 - Gorzalka, Philip A1 - Dahlke, Dennis A1 - Göttsche, Joachim A1 - Israel, Martin A1 - Patel, Dhruvkumar A1 - Prahl, Christoph A1 - Schmiedt, Jacob Estevam A1 - Frommholz, Dirk A1 - Hoffschmidt, Bernhard A1 - Linkiewicz, Magdalena T1 - Building Tomograph–From Remote Sensing Data of Existing Buildings to Building Energy Simulation Input T2 - EBC, Annex 71, Fifth expert meeting, October 17-19, 2018, Innsbruck, Austria Y1 - 2018 ER - TY - CHAP A1 - Sattler, Johannes Christoph A1 - Schneider, Iesse Peer A1 - Angele, Florian A1 - Atti, Vikrama Naga Babu A1 - Teixeira Boura, Cristiano José A1 - Herrmann, Ulf T1 - Development of heliostat field calibration methods: Theory and experimental test results T2 - SolarPACES 2022 conference proceedings N2 - 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. KW - Heliostat Field Calibration KW - Unmanned aerial vehicle KW - UAV KW - Quadrocopter KW - Camera system Y1 - 2024 U6 - https://doi.org/10.52825/solarpaces.v1i.678 SN - 2751-9899 (online) N1 - SolarPACES 2022: 28th International Conference on Concentrating Solar Power and Chemical Energy Systems, 27-30 September, Albuquerque, NM, USA IS - 1 PB - TIB Open Publishing CY - Hannover ER - TY - CHAP A1 - Sattler, Johannes Christoph A1 - Chico Caminos, Ricardo Alexander A1 - Ürlings, Nicolas A1 - Dutta, Siddharth A1 - Ruiz, Victor A1 - Kalogirou, Soteris A1 - Ktistis, Panayiotis A1 - Agathokleous, Rafaela A1 - Jung, Christian A1 - Alexopoulos, Spiros A1 - Atti, Vikrama Naga Babu A1 - Teixeira Boura, Cristiano José A1 - Herrmann, Ulf T1 - Operational experience and behaviour of a parabolic trough collector system with concrete thermal energy storage for process steam generation in Cyprus T2 - AIP Conference Proceedings N2 - As part of the transnational research project EDITOR, a parabolic trough collector system (PTC) with concrete thermal energy storage (C-TES) was installed and commissioned in Limassol, Cyprus. The system is located on the premises of the beverage manufacturer KEAN Soft Drinks Ltd. and its function is to supply process steam for the factory's pasteurisation process [1]. Depending on the factory's seasonally varying capacity for beverage production, the solar system delivers between 5 and 25 % of the total steam demand. In combination with the C-TES, the solar plant can supply process steam on demand before sunrise or after sunset. Furthermore, the C-TES compensates the PTC during the day in fluctuating weather conditions. The parabolic trough collector as well as the control and oil handling unit is designed and manufactured by Protarget AG, Germany. The C-TES is designed and produced by CADE Soluciones de Ingeniería, S.L., Spain. In the focus of this paper is the description of the operational experience with the PTC, C-TES and boiler during the commissioning and operation phase. Additionally, innovative optimisation measures are presented. Y1 - 2020 U6 - https://doi.org/10.1063/5.0029278 N1 - SOLARPACES 2019: International Conference on Concentrating Solar Power and Chemical Energy Systems, 1–4 October 2019, Daegu, South Korea IS - 2303 SP - 140004-1 EP - 140004-10 ER -