@inproceedings{TeixeiraBouraEcksteinFelinksetal.2011, author = {Teixeira Boura, Cristiano Jos{\´e} and Eckstein, J. and Felinks, J. and G{\"o}ttsche, Joachim and Hoffschmidt, Bernhard and Schmitz, S.}, title = {3-D CFD simulation of an air-sand heat exchanger}, series = {SolarPACES 2011 : concentrating solar power and chemical energy systems : 20 - 23 September, 2011, Granada, Spain}, booktitle = {SolarPACES 2011 : concentrating solar power and chemical energy systems : 20 - 23 September, 2011, Granada, Spain}, address = {Granada}, pages = {1 CD-ROM}, year = {2011}, language = {en} } @inproceedings{KreyerMuellerEsch2020, author = {Kreyer, J{\"o}rg and M{\"u}ller, Marvin and Esch, Thomas}, title = {A Map-Based Model for the Determination of Fuel Consumption for Internal Combustion Engines as a Function of Flight Altitude}, series = {Deutscher Luft- und Raumfahrtkongress 2019, „Luft- und Raumfahrt - technologische Br{\"u}cke in die Zukunft", Darmstadt, 30. September bis 2. Oktober 2019}, booktitle = {Deutscher Luft- und Raumfahrtkongress 2019, „Luft- und Raumfahrt - technologische Br{\"u}cke in die Zukunft", Darmstadt, 30. September bis 2. Oktober 2019}, publisher = {Deutsche Gesellschaft f{\"u}r Luft- und Raumfahrt - Lilienthal-Oberth e.V}, address = {Bonn}, doi = {10.25967/490162}, pages = {13 Seiten}, year = {2020}, language = {en} } @inproceedings{Schwarzer1992, author = {Schwarzer, Klemens}, title = {A new kind of efficient solar cookers with and without temporary heat storage}, series = {Advances in solar cooking : proceedings of the First World Conference on Solar Cooking, Stockton, California, USA, June 19 - 20, 1992 / ed. by Edwin Pejack}, booktitle = {Advances in solar cooking : proceedings of the First World Conference on Solar Cooking, Stockton, California, USA, June 19 - 20, 1992 / ed. by Edwin Pejack}, publisher = {Solar Box Cookers International}, address = {Sacramento, Calif.}, pages = {107 -- 112}, year = {1992}, language = {en} } @inproceedings{SchwarzerWiedenfeldBansaletal.1991, author = {Schwarzer, Klemens and Wiedenfeld, M. and Bansal, Narenda K. and Ertl, Karl-Heinz}, title = {A novel solar sterilization and water destillation system : experiment and thermodynamic analysis}, series = {1991 Solar World Congress : : proceedings of the Biennial Congress of the International Solar Energy Society, Denver, Colorado, USA, 19 - 23 August 1991 / ed. by M. E. Arden. Bd. 2,II}, booktitle = {1991 Solar World Congress : : proceedings of the Biennial Congress of the International Solar Energy Society, Denver, Colorado, USA, 19 - 23 August 1991 / ed. by M. E. Arden. Bd. 2,II}, publisher = {Pergamon Pr.}, address = {Oxford}, isbn = {0-08-041690-x}, pages = {2276 -- 2281}, year = {1991}, language = {en} } @inproceedings{SpaeteHafnerSchwarzer2000, author = {Sp{\"a}te, Frank and Hafner, B. and Schwarzer, Klemens}, title = {A system for solar process heat for decentralized applications in developing countries}, series = {ISES 1999 Solar World Congress, Jerusalem, Israel, July 4-9, 1999 : conference proceedings / ed. Gershon Grossman. Vol. 3}, booktitle = {ISES 1999 Solar World Congress, Jerusalem, Israel, July 4-9, 1999 : conference proceedings / ed. Gershon Grossman. Vol. 3}, publisher = {Elsevier}, address = {Oxford}, isbn = {0-080-043895-4}, pages = {236 -- 291}, year = {2000}, language = {en} } @inproceedings{PompSchwarzboezlKolletal.2010, author = {Pomp, Stefan and Schwarzb{\"o}zl, Peter and Koll, Gerrit and Hennecke, Klaus and Schmitz, Mark and Hoffschmidt, Bernhard}, title = {Advanced concept for a solar thermal power plant with open volumetric air receiver}, series = {SolarPACES 2010 : the CSP Conference: electricity, fuels and clean water from concentrated solar energy ; 21 to 24 September 2010, Perpignan, France}, booktitle = {SolarPACES 2010 : the CSP Conference: electricity, fuels and clean water from concentrated solar energy ; 21 to 24 September 2010, Perpignan, France}, publisher = {Soc. OSC}, address = {Saint Maur}, pages = {97 -- 98}, year = {2010}, language = {en} } @inproceedings{BaumannTeixeiraBouraEcksteinetal.2011, author = {Baumann, Torsten and Teixeira Boura, Cristiano Jos{\´e} and Eckstein, Julian and Felinks, Jan and G{\"o}ttsche, Joachim and Hoffschmidt, Bernhard and Schmitz, Stefan and Zunft, Stefan}, title = {Air-sand heat exchanger}, series = {6th International Renewable Energy Storage Conference (IRES 2011) : November 28 - 30, 2011, bcc Berlin Congress Center, Berlin, Germany / EUROSOLAR ...}, booktitle = {6th International Renewable Energy Storage Conference (IRES 2011) : November 28 - 30, 2011, bcc Berlin Congress Center, Berlin, Germany / EUROSOLAR ...}, publisher = {Eurosolar}, address = {Bonn}, pages = {1 CD-ROM}, year = {2011}, language = {de} } @inproceedings{WarerkarSchmitzGoettscheetal.2009, author = {Warerkar, Shashikant and Schmitz, Stefan and G{\"o}ttsche, Joachim and Hoffschmidt, Bernhard and Reißel, Martin and Tamme, Rainer}, title = {Air-sand heat exchanger for high-temperature storage}, series = {Proceedings of the ASME 3rd International Conference on Energy Sustainability : July 19 - 23, 2009, San Francisco, California, USA. Vol. 2}, booktitle = {Proceedings of the ASME 3rd International Conference on Energy Sustainability : July 19 - 23, 2009, San Francisco, California, USA. Vol. 2}, publisher = {ASME}, address = {New York, NY}, isbn = {978-0-7918-4890-6}, pages = {655 -- 661}, year = {2009}, language = {en} } @inproceedings{BaumannTeixeiraBouraGoettscheetal.2011, author = {Baumann, Torsten and Teixeira Boura, Cristiano Jos{\´e} and G{\"o}ttsche, Joachim and Hoffschmidt, Bernhard and Schmitz, Stefan and Zunft, Stefan}, title = {Air-sand heat exchanger: materials and flow properties}, series = {SolarPACES 2011 : concentrating solar power and chemical energy systems : 20 - 23 September, 2011, Granada, Spain}, booktitle = {SolarPACES 2011 : concentrating solar power and chemical energy systems : 20 - 23 September, 2011, Granada, Spain}, address = {Granada}, pages = {1 CD-ROM}, year = {2011}, language = {en} } @inproceedings{BaumannTeixeiraBouraGoettscheetal.2010, author = {Baumann, T. and Teixeira Boura, Cristiano Jos{\´e} and G{\"o}ttsche, Joachim and Hoffschmidt, Bernhard and O'Connell, B. and Schmitz, S. and Zunft, S.}, title = {Air/Sand heat exchanger design and materials for solar thermal power plant applications}, series = {SolarPACES 2010 : the CSP Conference: electricity, fuels and clean water from concentrated solar energy ; 21 to 24 September 2010, Perpignan, France}, booktitle = {SolarPACES 2010 : the CSP Conference: electricity, fuels and clean water from concentrated solar energy ; 21 to 24 September 2010, Perpignan, France}, publisher = {Soc. OSC}, address = {Saint Maur}, pages = {146 -- 147}, year = {2010}, language = {en} } @inproceedings{ZiolkoSchmitzSattleretal.2010, author = {Ziolko, C. and Schmitz, M. and Sattler, Johannes, Christoph and Khedim, Ahmed and Hoffschmidt, Bernhard}, title = {AlSol - the open volumetric receiver technology moves to Africa}, series = {SolarPACES 2010 : the CSP Conference: electricity, fuels and clean water from concentrated solar energy ; 21 to 24 September 2010, Perpignan, France}, booktitle = {SolarPACES 2010 : the CSP Conference: electricity, fuels and clean water from concentrated solar energy ; 21 to 24 September 2010, Perpignan, France}, publisher = {Soc. OSC}, address = {Saint Maur}, pages = {93 -- 94}, year = {2010}, language = {en} } @inproceedings{VaessenAlexopoulosKluczkaetal.2011, author = {Vaeßen, Christiane and Alexopoulos, Spiros and Kluczka, Sven and Sattler, Johannes Christoph and Roeb, M. and Neises, M. and Abdellatif, T.}, title = {Analyse der Verfahren zur solaren Methanolproduktion aus CO2}, series = {Forschung und Entwicklung f{\"u}r solarthermische Kraftwerke : 14. K{\"o}lner Sonnenkolloquium Mittwoch, 13. Juli 2011, im Auditorium des Campus J{\"u}lich der FH Aachen : Kurzfassungen der Vortr{\"a}ge und Poster}, booktitle = {Forschung und Entwicklung f{\"u}r solarthermische Kraftwerke : 14. K{\"o}lner Sonnenkolloquium Mittwoch, 13. Juli 2011, im Auditorium des Campus J{\"u}lich der FH Aachen : Kurzfassungen der Vortr{\"a}ge und Poster}, publisher = {DLR}, address = {K{\"o}ln}, pages = {2 S.}, year = {2011}, language = {de} } @inproceedings{GedleSchmitzGielenetal.2022, author = {Gedle, Yibekal and Schmitz, Mark and Gielen, Hans and Schmitz, Pascal and Herrmann, Ulf and Teixeira Boura, Cristiano Jos{\´e} and Mahdi, Zahra and Caminos, Ricardo Alexander Chico and Dersch, J{\"u}rgen}, title = {Analysis of an integrated CSP-PV hybrid power plant}, series = {SolarPACES 2020}, booktitle = {SolarPACES 2020}, number = {2445 / 1}, publisher = {AIP conference proceedings / American Institute of Physics}, address = {Melville, NY}, isbn = {978-0-7354-4195-8}, issn = {1551-7616 (online)}, doi = {10.1063/5.0086236}, pages = {9 Seiten}, year = {2022}, abstract = {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.}, language = {en} } @inproceedings{BreitbachAlexopoulosMayetal.2019, author = {Breitbach, Gerd and Alexopoulos, Spiros and May, Martin and Teixeira Boura, Cristiano Jos{\´e} and Herrmann, Ulf}, title = {Analysis of volumetric solar radiation absorbers made of wire meshes}, series = {AIP Conference Proceedings}, volume = {2126}, booktitle = {AIP Conference Proceedings}, issn = {0094243X}, doi = {10.1063/1.5117521}, pages = {030009-1 -- 030009-6}, year = {2019}, language = {en} } @inproceedings{SauerbornLiebenstundRaueetal.2017, author = {Sauerborn, Markus and Liebenstund, Lena and Raue, Markus and Mang, Thomas and Herrmann, Ulf and Dueing, Andreas}, title = {Analytic method for material aging and quality analyzing to forecast long time stability of plastic micro heliostat components}, series = {AIP Conference Proceedings}, volume = {1850}, booktitle = {AIP Conference Proceedings}, number = {1}, doi = {10.1063/1.4984388}, pages = {030045-1 -- 030045-8}, year = {2017}, language = {en} } @inproceedings{AringhoffGeyerHerrmannetal.2002, author = {Aringhoff, R. and Geyer, Michael and Herrmann, Ulf and Kistner, Rainer and Nava, P. and Osuna, R.}, title = {AndaSol : 50MW Solar Plants with 9 Hour Storage for Southern Spain}, series = {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, Eidgen{\"o}ssische Technische Hochschule Z{\"u}rich}, booktitle = {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, Eidgen{\"o}ssische Technische Hochschule Z{\"u}rich}, editor = {Steinfeld, Aldo}, publisher = {Paul Scherrer Inst.}, address = {Villingen}, isbn = {3-9521409-3-7}, pages = {37 -- 42}, year = {2002}, language = {en} } @inproceedings{VossBundschuhMelissetal.1974, author = {Voß, Alfred and Bundschuh, Vinzenz and Meliß, Michael and Oesterwind, Dieter}, title = {Andere Prim{\"a}renergiequellen}, series = {Nichtkonventionelle Energiesysteme : Vortr{\"a}ge der VDI-Tagung D{\"u}sseldorf 1974. - (VDI-Bericht. 224.)}, booktitle = {Nichtkonventionelle Energiesysteme : Vortr{\"a}ge der VDI-Tagung D{\"u}sseldorf 1974. - (VDI-Bericht. 224.)}, publisher = {VDI-Verl.}, address = {D{\"u}sseldorf}, isbn = {3-18-090224-8}, pages = {117 -- 125}, year = {1974}, language = {de} } @inproceedings{RazenSpaeteMelissetal.1998, author = {Razen, Manfred and Sp{\"a}te, Frank and Meliß, Michael and Breuer, Maria and Hubrich, J{\"o}rg and Rischert, Christa}, title = {Aus-, Fort- und Weiterbildung am Solar-Institut J{\"u}lich}, series = {Deutschlands Weg in eine solare Zukunft : Tagungsband; 26. - 30. Juni 1998 Fachhochschule K{\"o}ln / 11. Internationales Sonnenforum}, booktitle = {Deutschlands Weg in eine solare Zukunft : Tagungsband; 26. - 30. Juni 1998 Fachhochschule K{\"o}ln / 11. Internationales Sonnenforum}, publisher = {Solar Promotion}, address = {M{\"u}nchen}, organization = {Deutsche Gesellschaft f{\"u}r Sonnenenergie}, pages = {1071 -- 1078}, year = {1998}, language = {de} } @inproceedings{DuemmlerOetringerGoettsche2020, author = {D{\"u}mmler, Andreas and Oetringer, Kerstin and G{\"o}ttsche, Joachim}, title = {Auslegungstool zur energieeffizienten K{\"u}hlung von Geb{\"a}uden}, series = {DKV-Tagung 2020, AA IV}, booktitle = {DKV-Tagung 2020, AA IV}, pages = {1 -- 12}, year = {2020}, language = {de} } @inproceedings{FrantzBinderBuschetal.2020, author = {Frantz, Cathy and Binder, Matthias and Busch, Konrad and Ebert, Miriam and Heinrich, Andreas and Kaczmarkiewicz, Nadine and Schl{\"o}gl-Knothe, B{\"a}rbel and Kunze, Tobias and Schuhbauer, Christian and Stetka, Markus and Schwager, Christian and Spiegel, Michael and Teixeira Boura, Cristiano Jos{\´e} and Bauer, Thomas and Bonk, Alexander and Eisen, Stefan and Funck, Bernhard}, title = {Basic Engineering of a High Performance Molten Salt Tower Receiver System}, series = {Solar Paces 2020}, booktitle = {Solar Paces 2020}, pages = {1 -- 10}, year = {2020}, language = {en} } @inproceedings{Meliss1985, author = {Meliß, Michael}, title = {Biomasse-Potential}, series = {Energie aus Biomasse : Erfahrungen mit verschiedenen technischen L{\"o}sungen und Zukunftsaussichten; Tagungsbericht; [Fachtagung, 18. - 19. November 1985, Freising]}, booktitle = {Energie aus Biomasse : Erfahrungen mit verschiedenen technischen L{\"o}sungen und Zukunftsaussichten; Tagungsbericht; [Fachtagung, 18. - 19. November 1985, Freising]}, publisher = {Techn. Univ.}, address = {M{\"u}nchen}, organization = {International Solar Energy Society}, pages = {1 -- 30}, year = {1985}, language = {de} } @inproceedings{GorzalkaDahlkeGoettscheetal.2018, author = {Gorzalka, Philip and Dahlke, Dennis and G{\"o}ttsche, Joachim and Israel, Martin and Patel, Dhruvkumar and Prahl, Christoph and Schmiedt, Jacob Estevam and Frommholz, Dirk and Hoffschmidt, Bernhard and Linkiewicz, Magdalena}, title = {Building Tomograph-From Remote Sensing Data of Existing Buildings to Building Energy Simulation Input}, series = {EBC, Annex 71, Fifth expert meeting, October 17-19, 2018, Innsbruck, Austria}, booktitle = {EBC, Annex 71, Fifth expert meeting, October 17-19, 2018, Innsbruck, Austria}, pages = {17 Seiten}, year = {2018}, language = {en} } @inproceedings{SchulteFischedickTammeHerrmann2009, author = {Schulte-Fischedick, Jan and Tamme, Rainer and Herrmann, Ulf}, title = {CFD Analysis of the Cool Down Behaviour of Molten Salt Thermal Storage Systems}, series = {ASME 2008 2nd International Conference on Energy Sustainability collocated with the Heat Transfer, Fluids Engineering, and 3rd Energy Nanotechnology Conferences, ASME 2008 2nd International Conference on Energy Sustainability, Jacksonville, Florida, USA, August 10-14, 2008. - Vol. 2}, booktitle = {ASME 2008 2nd International Conference on Energy Sustainability collocated with the Heat Transfer, Fluids Engineering, and 3rd Energy Nanotechnology Conferences, ASME 2008 2nd International Conference on Energy Sustainability, Jacksonville, Florida, USA, August 10-14, 2008. - Vol. 2}, publisher = {ASME}, address = {New York, NY}, isbn = {978-0-7918-4320-8}, doi = {doi:10.1115/ES2008-54101}, pages = {515 -- 524}, year = {2009}, language = {de} } @inproceedings{AlexopoulosHoffschmidtRauetal.2011, author = {Alexopoulos, Spiros and Hoffschmidt, Bernhard and Rau, Christoph and Sattler, Johannes, Christoph}, title = {Choice of solar share of a hybrid power plant of a central receiver system and a biogas plant in dependency of the geographical latitude}, series = {World Renewable Energy Congress-Sweden : 8 -13 May, 2011, Link{\"o}ping, Sweden / ed.: Bahram Moshfegh}, booktitle = {World Renewable Energy Congress-Sweden : 8 -13 May, 2011, Link{\"o}ping, Sweden / ed.: Bahram Moshfegh}, publisher = {Univ. Electronic Pr.}, address = {Link{\"o}ping}, isbn = {9789173930703}, pages = {3710 -- 3717}, year = {2011}, language = {en} } @inproceedings{BlankeDringVonteinetal.2018, author = {Blanke, Tobias and Dring, Bernd and Vontein, Marius and Kuhnhenne, Markus}, title = {Climate Change Mitigation Potentials of Vertical Building Integrated Photovoltaic}, series = {8th International Workshop on Integration of Solar Power into Power Systems : 16-17 October 2018, Stockholm, Sweden}, booktitle = {8th International Workshop on Integration of Solar Power into Power Systems : 16-17 October 2018, Stockholm, Sweden}, pages = {1 -- 7}, year = {2018}, language = {en} } @inproceedings{LatzkeAlexopoulosKronhardtetal.2015, author = {Latzke, Markus and Alexopoulos, Spiros and Kronhardt, Valentina and Rend{\´o}n, Carlos and Sattler, Johannes, Christoph}, title = {Comparison of Potential Sites in China for Erecting a Hybrid Solar Tower Power Plant with Air Receiver}, series = {Energy Procedia}, booktitle = {Energy Procedia}, issn = {1876-6102}, doi = {10.1016/j.egypro.2015.03.142}, pages = {1327 -- 1334}, year = {2015}, language = {en} } @inproceedings{AlexopoulosHoffschmidtRau2011, author = {Alexopoulos, Spiros and Hoffschmidt, Bernhard and Rau, Christoph}, title = {Comparison of steady-state and transient simulations for solar tower power plants with open-volumetric receiver}, series = {SolarPACES 2011 : concentrating solar power and chemical energy systems : 20 - 23 September, 2011, Granada, Spain}, booktitle = {SolarPACES 2011 : concentrating solar power and chemical energy systems : 20 - 23 September, 2011, Granada, Spain}, address = {Granada}, pages = {1 CD-ROM}, year = {2011}, language = {en} } @inproceedings{HerrmannVorbruggNava2009, author = {Herrmann, Ulf and Vorbrugg, O. and Nava, P.}, title = {Construction and Commissioning Process of the Andasol Solar Field}, series = {SolarPACES 2009 : electricity, fuels and clean water powered by the sun ; 15 - 18 September 2009, Berlin, Germany ; the 15th SolarPACES conference ; proceedings}, booktitle = {SolarPACES 2009 : electricity, fuels and clean water powered by the sun ; 15 - 18 September 2009, Berlin, Germany ; the 15th SolarPACES conference ; proceedings}, publisher = {Deutsches Zentrum f{\"u}r Luft- u. Raumfahrt}, address = {Stuttgart}, isbn = {978-3-00-028755-8}, pages = {1 CD-ROM}, year = {2009}, language = {en} } @inproceedings{SchulteSchwagerFrantzetal.2022, author = {Schulte, Jonas and Schwager, Christian and Frantz, Cathy and Schloms, Felix and Teixeira Boura, Cristiano Jos{\´e} and Herrmann, Ulf}, title = {Control concept for a molten salt receiver in star design: Development, optimization and testing with cloud passage scenarios}, series = {SolarPACES conference proceedings}, booktitle = {SolarPACES conference proceedings}, number = {Vol. 1}, publisher = {TIB Open Publishing}, address = {Hannover}, issn = {2751-9899 (online)}, doi = {10.52825/solarpaces.v1i.693}, pages = {9 Seiten}, year = {2022}, abstract = {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.}, language = {en} } @inproceedings{Goettsche2008, author = {G{\"o}ttsche, Joachim}, title = {Das Geb{\"a}ude-Armaturenbrett (GAB) - ein hochaufl{\"o}sendes Monitoring-Tool f{\"u}r Verbrauchsdaten in Privathaushalten}, series = {Energieeffizienz + Bestand : energetische Sanierung von Geb{\"a}uden ; internationales Anwenderforum ; 14./15. Februar 2008, Kloster Banz, Bad Staffelstein}, booktitle = {Energieeffizienz + Bestand : energetische Sanierung von Geb{\"a}uden ; internationales Anwenderforum ; 14./15. Februar 2008, Kloster Banz, Bad Staffelstein}, publisher = {OTTI}, address = {Regensburg}, isbn = {978-3-934681-68-2}, pages = {216 -- 223}, year = {2008}, language = {de} } @inproceedings{SpaeteHubrichKeipetal.1998, author = {Sp{\"a}te, Frank and Hubrich, J{\"o}rg and Keip, Wolfgang and Meliß, Michael}, title = {Der Solar-Campus J{\"u}lich - Stand der Arbeiten}, series = {Deutschlands Weg in eine solare Zukunft : Tagungsband; 26. - 30. Juni 1998 Fachhochschule K{\"o}ln / 11. Internationales Sonnenforum}, booktitle = {Deutschlands Weg in eine solare Zukunft : Tagungsband; 26. - 30. Juni 1998 Fachhochschule K{\"o}ln / 11. Internationales Sonnenforum}, publisher = {Solar Promotion}, address = {M{\"u}nchen}, organization = {Deutsche Gesellschaft f{\"u}r Sonnenenergie}, pages = {666 -- 672}, year = {1998}, language = {de} } @inproceedings{Goettsche2005, author = {G{\"o}ttsche, Joachim}, title = {Der vertikale Sonnenlichtquotient : eine wichtige Kenngr{\"o}ße zur Charakterisierung von Lichtlenksystemen}, series = {Elftes Symposium Innovative Lichttechnik in Geb{\"a}uden : 27./28. Januar 2005, Kloster Banz}, booktitle = {Elftes Symposium Innovative Lichttechnik in Geb{\"a}uden : 27./28. Januar 2005, Kloster Banz}, publisher = {OTTI-Energie-Kolleg}, address = {Regensburg}, isbn = {3-934681-37-9}, pages = {79 -- 84}, year = {2005}, language = {de} } @inproceedings{Schwarzer2008, author = {Schwarzer, Klemens}, title = {Desalination systems with renewable energies}, series = {DME Seminar Desalination and Renewable Energies : June 19 and 20 2008, Solar Institut J{\"u}lich / Deutsche Meerwasserentsalzung e.V.}, booktitle = {DME Seminar Desalination and Renewable Energies : June 19 and 20 2008, Solar Institut J{\"u}lich / Deutsche Meerwasserentsalzung e.V.}, publisher = {DME}, address = {Duisburg}, isbn = {978-3-86861-017-8}, pages = {219 Bl. in getr. Z{\"a}hlung : zahlr. Ill. und graph. Darst., Kt.}, year = {2008}, language = {en} } @inproceedings{Vitting2011, author = {Vitting, Eva}, title = {Designprojekte zu Solarenergie: Wie kommunizieren wir unsere Technik?}, series = {Forschung und Entwicklung f{\"u}r solarthermische Kraftwerke : 14. K{\"o}lner Sonnenkolloquium Mittwoch, 13. Juli 2011, im Auditorium des Campus J{\"u}lich der FH Aachen : Kurzfassungen der Vortr{\"a}ge und Poster}, booktitle = {Forschung und Entwicklung f{\"u}r solarthermische Kraftwerke : 14. K{\"o}lner Sonnenkolloquium Mittwoch, 13. Juli 2011, im Auditorium des Campus J{\"u}lich der FH Aachen : Kurzfassungen der Vortr{\"a}ge und Poster}, publisher = {DLR}, address = {K{\"o}ln}, pages = {3 S.}, year = {2011}, language = {de} } @inproceedings{AnthrakidisHerrmannSchornetal.2015, author = {Anthrakidis, Anette and Herrmann, Ulf and Schorn, Christian and Schwarzer, Klemens and Wedding, Philipp and Weis, Fabian}, title = {Development and Testing of a Novel Method for the Determination of the Efficiency of Concentrating Solar Thermal Collectors}, series = {Conference Proceedings Solar World Congress 2015, Daegu, Korea, 08 - 12 November 2015}, booktitle = {Conference Proceedings Solar World Congress 2015, Daegu, Korea, 08 - 12 November 2015}, pages = {9 Seiten}, year = {2015}, language = {en} } @inproceedings{BuckWurmhoeringerLehleetal.2010, author = {Buck, R. and Wurmh{\"o}ringer, K. and Lehle, R. and Pfahl, A. and G{\"o}ttsche, Joachim and Meyr, T.}, title = {Development of a 30m2 heliostat with hydraulic drive}, series = {SolarPACES 2010 : the CSP Conference: electricity, fuels and clean water from concentrated solar energy ; 21 to 24 September 2010, Perpignan, France}, booktitle = {SolarPACES 2010 : the CSP Conference: electricity, fuels and clean water from concentrated solar energy ; 21 to 24 September 2010, Perpignan, France}, publisher = {Soc. OSC}, address = {Saint Maur}, pages = {74 -- 75}, year = {2010}, language = {en} } @inproceedings{CaminosSchmitzAttietal.2022, author = {Caminos, Ricardo Alexander Chico and Schmitz, Pascal and Atti, Vikrama and Mahdi, Zahra and Teixeira Boura, Cristiano Jos{\´e} and Sattler, Johannes Christoph and Herrmann, Ulf and Hilger, Patrick and Dieckmann, Simon}, title = {Development of a micro heliostat and optical qualification assessment with a 3D laser scanning method}, series = {SOLARPACES 2020}, booktitle = {SOLARPACES 2020}, number = {2445 / 1}, publisher = {AIP conference proceedings / American Institute of Physics}, address = {Melville, NY}, isbn = {978-0-7354-4195-8}, issn = {1551-7616 (online)}, doi = {10.1063/5.0086262}, pages = {8 Seiten}, year = {2022}, abstract = {The Solar-Institut J{\"u}lich (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.}, language = {en} } @inproceedings{HoffschmidtSchwarzerSpaeteetal.2006, author = {Hoffschmidt, Bernhard and Schwarzer, Klemens and Sp{\"a}te, Frank and K{\"o}tter, Jens and Ebert, Miriam and Sierck, Olaf}, title = {Development of a small modular parabolic trough collector}, series = {13th International Symposium Concentrated Solar Power and Chemical Energy Technologies : SolarPaces : June 20 - 23, 2006, Seville, Spain}, booktitle = {13th International Symposium Concentrated Solar Power and Chemical Energy Technologies : SolarPaces : June 20 - 23, 2006, Seville, Spain}, publisher = {SolarPaces}, address = {[o.O.]}, organization = {International Symposium on Concentrating Solar Power and Chemical Energy Systems <13, 2006, Sevilla>}, isbn = {8478345191}, pages = {1 CD-ROM}, year = {2006}, language = {en} } @inproceedings{AchenbachGoettscheKaufholdetal.2011, author = {Achenbach, Timm and G{\"o}ttsche, Joachim and Kaufhold, O. and Hoffschmidt, Bernhard}, title = {Development of an edge module for open volumetric receiver for the use of the radiation at the receiver boundary region}, series = {SolarPACES 2011 : concentrating solar power and chemical energy systems : 20 - 23 September, 2011, Granada, Spain}, booktitle = {SolarPACES 2011 : concentrating solar power and chemical energy systems : 20 - 23 September, 2011, Granada, Spain}, address = {Granada}, pages = {1 CD-ROM}, year = {2011}, language = {en} } @inproceedings{TeixeiraBouraNiederwestbergMcLeodetal.2016, author = {Teixeira Boura, Cristiano Jos{\´e} and Niederwestberg, Stefan and McLeod, Jacqueline and Herrmann, Ulf and Hoffschmidt, Bernhard}, title = {Development of heat exchanger for high temperature energy storage with bulk materials}, series = {AIP Conference Proceedings}, volume = {1734}, booktitle = {AIP Conference Proceedings}, number = {1}, doi = {10.1063/1.4949106}, pages = {050008-1 -- 050008-7}, year = {2016}, language = {en} } @inproceedings{SattlerSchneiderAngeleetal.2022, author = {Sattler, Johannes Christoph and Schneider, Iesse Peer and Angele, Florian and Atti, Vikrama and Teixeira Boura, Cristiano Jos{\´e} and Herrmann, Ulf}, title = {Development of heliostat field calibration methods: Theory and experimental test results}, series = {SolarPACES conference proceedings}, booktitle = {SolarPACES conference proceedings}, number = {Vol. 1}, publisher = {TIB Open Publishing}, address = {Hannover}, issn = {2751-9899 (online)}, doi = {10.52825/solarpaces.v1i.678}, pages = {9 Seiten}, year = {2022}, abstract = {In this work, three patent pending calibration methods for heliostat fields of central receiver systems (CRS) developed by the Solar-Institut J{\"u}lich (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.}, language = {en} } @inproceedings{NeumannAdamBackesetal.2021, author = {Neumann, Hannah and Adam, Mario and Backes, Klaus and B{\"o}rner, Martin and Clees, Tanja and Doetsch, Christian and Glaeser, Susanne and Herrmann, Ulf and May, Johanna and Rosenthal, Florian and Sauer, Dirk Uwe and Stadler, Ingo}, title = {Development of open educational resources for renewable energy and the energy transition process}, series = {ISES SWC 2021}, booktitle = {ISES SWC 2021}, publisher = {International Solar Energy Society}, address = {Freiburg}, doi = {10.18086/swc.2021.47.03}, pages = {6 Seiten}, year = {2021}, abstract = {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.}, language = {en} } @inproceedings{MelissSchwarzerSpaeteetal.1992, author = {Meliß, Michael and Schwarzer, Klemens and Sp{\"a}te, F. and Neskakis, A. and Buck, H.}, title = {Die Arbeitsgemeinschaft Solar Nordrhein-Westfalen, Schwerpunkt B: Dezentrale Energietechnologien}, series = {Energie und unsere Umwelt. 8. Internationales Sonnenforum '92, 30. Juni - 3. Juli 1992. Bd. 2}, booktitle = {Energie und unsere Umwelt. 8. Internationales Sonnenforum '92, 30. Juni - 3. Juli 1992. Bd. 2}, publisher = {DGS-Sonnenenergie-Verl.}, address = {M{\"u}nchen}, pages = {1439 -- 1444}, year = {1992}, language = {de} } @inproceedings{SchulzeBuxlohGrossUlbrich2021, author = {Schulze-Buxloh, Lina and Groß, Rolf Fritz and Ulbrich, Michelle}, title = {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}, series = {Proceedings of International Conference on Education in Mathematics, Science and Technology 2021}, booktitle = {Proceedings of International Conference on Education in Mathematics, Science and Technology 2021}, publisher = {ISTES Organization}, address = {San Antonio, TX}, isbn = {978-1-952092-17-6}, pages = {118 -- 123}, year = {2021}, abstract = {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.}, language = {en} } @inproceedings{SattlerAttiAlexopoulosetal.2022, author = {Sattler, Johannes Christoph and Atti, Vikrama and Alexopoulos, Spiros and Teixeira Boura, Cristiano Jos{\´e} and Herrmann, Ulf and Dutta, Siddharth and Kioutsioukis, Ioannis}, title = {DNI forecast tool for the smart operation of a parabolic trough collector system with concrete thermal energy storage: Theory, results and outlook}, series = {SolarPACES conference proceedings}, booktitle = {SolarPACES conference proceedings}, number = {VOL. 1}, publisher = {TIB Open Publishing}, address = {Hannover}, issn = {2751-9899 (online)}, doi = {10.52825/solarpaces.v1i.731}, pages = {9 Seiten}, year = {2022}, abstract = {This work presents a basic forecast tool for predicting direct normal irradiance (DNI) in hourly resolution, which the Solar-Institut J{\"u}lich (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.}, language = {en} } @inproceedings{JanotteFecklerKoetteretal.2014, author = {Janotte, N. and Feckler, G. and K{\"o}tter, Jens and Decker, Stefan and Herrmann, Ulf and Schmitz, Mark and L{\"u}pfert, E.}, title = {Dynamic performance evaluation of the HelioTrough® collector demonstration loop : towards a new benchmark in parabolic trough qualification}, series = {SolarPACES International Conference 2013, Las Vegas, Nevada, USA, 17 - 20 September 2013 : [proceedings]. - Pt. 1. - (Energy procedia ; 49)}, booktitle = {SolarPACES International Conference 2013, Las Vegas, Nevada, USA, 17 - 20 September 2013 : [proceedings]. - Pt. 1. - (Energy procedia ; 49)}, publisher = {Curran}, address = {Red Hook, NY}, isbn = {978-1-63266-904-9}, issn = {1876-6102}, doi = {10.1016/j.egypro.2014.03.012}, pages = {109 -- 117}, year = {2014}, language = {en} } @inproceedings{SattlerAlexopoulosCaminosetal.2019, author = {Sattler, Johannes, Christoph and Alexopoulos, Spiros and Caminos, Ricardo Alexander Chico and Mitchell, John C. and Ruiz, Victor C. and Kalogirou, Soteris and Ktistis, Panayiotis K. and Teixeira Boura, Cristiano Jos{\´e} and Herrmann, Ulf}, title = {Dynamic simulation model of a parabolic trough collector system with concrete thermal energy storage for process steam generation}, series = {AIP Conference Proceedings}, volume = {2126}, booktitle = {AIP Conference Proceedings}, issn = {0094243X}, doi = {10.1063/1.5117663}, pages = {150007-1 -- 150007-8}, year = {2019}, language = {en} } @inproceedings{HirschAhlbrinkPitzPaaletal.2011, author = {Hirsch, Tobias and Ahlbrink, Nils and Pitz-Paal, Robert and Teixeira Boura, Cristiano Jos{\´e} and Hoffschmidt, Bernhard and Gall, Jan and Abel, Dirk and Nolte, Vera and Wirsum, Manfred and Andersson, Joel and Diehl, Moritz}, title = {Dynamic simulation of a solar tower system with open volumetric receiver - a review on the ViCERP project}, series = {SolarPACES 2011 : concentrating solar power and chemical energy systems : 20 - 23 September, 2011, Granada, Spain}, booktitle = {SolarPACES 2011 : concentrating solar power and chemical energy systems : 20 - 23 September, 2011, Granada, Spain}, address = {Granada}, pages = {1 CD-ROM}, year = {2011}, language = {en} } @inproceedings{SattlerChicoCaminosAttietal.2020, author = {Sattler, Johannes Christoph and Chico Caminos, Ricardo Alexander and Atti, Vikrama Nagababu and {\"U}rlings, Nicolas and Dutta, Siddharth and Ruiz, Victor and Kalogirou, Soteris and Ktistis, Panayiotis and Agathokleous, Rafaela and Alexopoulos, Spiros and Teixeira Boura, Cristiano Jos{\´e} and Herrmann, Ulf}, title = {Dynamic simulation tool for a performance evaluation and sensitivity study of a parabolic trough collector system with concrete thermal energy storage}, series = {AIP Conference Proceedings 2303}, booktitle = {AIP Conference Proceedings 2303}, publisher = {American Institute of Physics}, address = {Melville, NY}, issn = {0094-243X}, doi = {10.1063/5.0029277}, pages = {160004}, year = {2020}, language = {de} } @inproceedings{HafnerHoellerWemhoeneretal.1998, author = {Hafner, Bernd and H{\"o}ller, Robert and Wemh{\"o}ner, Carsten and Schwarzer, Klemens}, title = {Dynamische Simulation thermischer Speicher mit MATLAB}, series = {Deutschlands Weg in eine solare Zukunft : Tagungsband; 26. - 30. Juni 1998 Fachhochschule K{\"o}ln / 11. Internationales Sonnenforum}, booktitle = {Deutschlands Weg in eine solare Zukunft : Tagungsband; 26. - 30. Juni 1998 Fachhochschule K{\"o}ln / 11. Internationales Sonnenforum}, publisher = {Solar Promotion}, address = {M{\"u}nchen}, organization = {Deutsche Gesellschaft f{\"u}r Sonnenenergie}, pages = {734 -- 740}, year = {1998}, language = {de} } @inproceedings{FrickeHoffschmidt2010, author = {Fricke, Barbara and Hoffschmidt, Bernhard}, title = {Ecobalance of a solar thermal tower power plant with volumetric receiver}, series = {SolarPACES 2010 : the CSP Conference: electricity, fuels and clean water from concentrated solar energy ; 21 to 24 September 2010, Perpignan, France}, booktitle = {SolarPACES 2010 : the CSP Conference: electricity, fuels and clean water from concentrated solar energy ; 21 to 24 September 2010, Perpignan, France}, publisher = {Soc. OSC}, address = {Saint Maur}, pages = {87 -- 88}, year = {2010}, language = {en} } @inproceedings{GoettscheSchwarzerRoetheretal.2009, author = {G{\"o}ttsche, Joachim and Schwarzer, Klemens and R{\"o}ther, Sascha and Jellinghaus, Sabine and Helten, G. and Wittmann, R.}, title = {Efficient daylighting, heating and shading with rooflight heliostats}, series = {Renewables in a changing climate : from Nano to Urban Scale : CISBAT 2009 : 2-3 September 2009, EPFL, Lausanne, Switzerland : proceedings}, booktitle = {Renewables in a changing climate : from Nano to Urban Scale : CISBAT 2009 : 2-3 September 2009, EPFL, Lausanne, Switzerland : proceedings}, publisher = {Ecole Polytechnique F{\´e}d{\´e}rale de Lausanne}, address = {Lausanne}, pages = {243 -- 246}, year = {2009}, language = {en} } @inproceedings{Meliss1999, author = {Meliß, Michael}, title = {Ein Hochschul-Curriculum f{\"u}r erneuerbare Energien}, series = {Building a new century : 5th Conference on Solar Architecture and Design; Bonn, 27th of May 1998 / ed. by EUROSOLAR e. V. / ed. by Irm Pontenagel}, booktitle = {Building a new century : 5th Conference on Solar Architecture and Design; Bonn, 27th of May 1998 / ed. by EUROSOLAR e. V. / ed. by Irm Pontenagel}, publisher = {Bonn}, address = {Eurosolar-Verl.}, isbn = {3-933745-03-9}, pages = {198 -- 207}, year = {1999}, language = {de} } @inproceedings{Faber2004, author = {Faber, Christian}, title = {Einfache Systeme zur solaren Deckung des W{\"a}rmebedarfs zur Raumheizung, Brauchwassererw{\"a}rmung und Essenszubereitung in Hochgebirgsregionen}, series = {14. Symposium Thermische Solarenergie : 12. bis 14. Mai 2004, Kloster Banz, Bad Staffelstein / OTTI-Kolleg Technik, Energie, Management}, booktitle = {14. Symposium Thermische Solarenergie : 12. bis 14. Mai 2004, Kloster Banz, Bad Staffelstein / OTTI-Kolleg Technik, Energie, Management}, publisher = {OTTI-Energie-Kolleg}, address = {Regensburg}, isbn = {3-934681-33-6}, pages = {264 -- 271}, year = {2004}, language = {de} } @inproceedings{Goettsche2008, author = {G{\"o}ttsche, Joachim}, title = {Einsatz nichtinvasiver Messtechnik zur Betriebsanalyse}, series = {Energieeffizienz + Bestand : energetische Sanierung von Geb{\"a}uden ; internationales Anwenderforum ; 14./15. Februar 2008, Kloster Banz, Bad Staffelstein}, booktitle = {Energieeffizienz + Bestand : energetische Sanierung von Geb{\"a}uden ; internationales Anwenderforum ; 14./15. Februar 2008, Kloster Banz, Bad Staffelstein}, publisher = {OTTI}, address = {Regensburg}, isbn = {978-3-934681-68-2}, pages = {44 -- 51}, year = {2008}, language = {de} } @inproceedings{HoellerWollscheidFaberetal.1998, author = {H{\"o}ller, Robert and Wollscheid, Georg and Faber, Christian and Schwarzer, Klemens}, title = {Energetische Optimierung von solaren Brauchwasseranlagen durch Verbesserung der Regelung}, series = {Deutschlands Weg in eine solare Zukunft : Tagungsband; 26. - 30. Juni 1998 Fachhochschule K{\"o}ln / 11. Internationales Sonnenforum}, booktitle = {Deutschlands Weg in eine solare Zukunft : Tagungsband; 26. - 30. Juni 1998 Fachhochschule K{\"o}ln / 11. Internationales Sonnenforum}, publisher = {Solar Promotion}, address = {M{\"u}nchen}, organization = {Deutsche Gesellschaft f{\"u}r Sonnenenergie}, pages = {197}, year = {1998}, language = {de} } @inproceedings{MelissNeskakisUsbecketal.1993, author = {Meliß, Michael and Neskakis, A. and Usbeck, S. and Wagner, L. and Wiediger, J{\"u}rgen}, title = {Energiebereitstellung f{\"u}r dezentrale Anwendungen durch gekoppelte Solarsysteme}, series = {Achtes Nationales Symposium Photovoltaische Solarenergie : 17. - 19. M{\"a}rz 1993, Kloster Banz, Staffelstein}, booktitle = {Achtes Nationales Symposium Photovoltaische Solarenergie : 17. - 19. M{\"a}rz 1993, Kloster Banz, Staffelstein}, publisher = {OTTI}, address = {Regensburg}, pages = {496 -- 500}, year = {1993}, language = {de} } @inproceedings{HeroldHorstmannNeskakisetal.1998, author = {Herold, Dirk and Horstmann, Volker and Neskakis, Apostolos and Meliß, Michael}, title = {Energieversorgungskonzept zur Trinkwassergewinnung durch Umkehrosmose in Jordanien}, series = {Deutschlands Weg in eine solare Zukunft : Tagungsband; 26. - 30. Juni 1998 Fachhochschule K{\"o}ln / 11. Internationales Sonnenforum}, booktitle = {Deutschlands Weg in eine solare Zukunft : Tagungsband; 26. - 30. Juni 1998 Fachhochschule K{\"o}ln / 11. Internationales Sonnenforum}, publisher = {Solar Promotion}, address = {M{\"u}nchen}, organization = {Deutsche Gesellschaft f{\"u}r Sonnenenergie}, pages = {824 -- 831}, year = {1998}, language = {de} } @inproceedings{MelissNeskakisUsbecketal.1993, author = {Meliß, Michael and Neskakis, A. and Usbeck, S. and Wagner, L. and Wiediger, J{\"u}rgen}, title = {Energy supply by coupled solar systems for decentralized application}, series = {Harmony with nature : : proceedings / ISES Solar World Congress, Budapest 1993. International Solar Energy Society, Hungarian Section (H-ISES); Hungarian Solar Energy Society (HSES). Vol. 8: Biomass, agriculture, wind}, booktitle = {Harmony with nature : : proceedings / ISES Solar World Congress, Budapest 1993. International Solar Energy Society, Hungarian Section (H-ISES); Hungarian Solar Energy Society (HSES). Vol. 8: Biomass, agriculture, wind}, publisher = {Hungarian Energy Society}, address = {Budapest}, pages = {343 -- 348}, year = {1993}, language = {en} } @inproceedings{Hoffschmidt2005, author = {Hoffschmidt, Bernhard}, title = {Entwicklung eines modularen und effizienten Parabolrinnenkollektors}, series = {15. Symposium Thermische Solarenergie : 27. bis 29. April 2005, Kloster Banz, Bad Staffelstein}, booktitle = {15. Symposium Thermische Solarenergie : 27. bis 29. April 2005, Kloster Banz, Bad Staffelstein}, publisher = {OTTI-Energie-Kolleg}, address = {Regensburg}, isbn = {3-934681-39-5}, pages = {158 -- 163}, year = {2005}, language = {de} } @inproceedings{SchornWeisAnthrakidisetal.2016, author = {Schorn, Christian and Weis, Fabian and Anthrakidis, Anette and Schwarzer, Klemens and Schmitz, Mark and Herrmann, Ulf}, title = {Entwicklung und Bewertung eines Parabolrinnenkollektors zur Prozessw{\"a}rmebereitstellung}, series = {26. Symposium Thermische Solarenergie, 20.-22.04.2016 in Bad Staffelstein}, booktitle = {26. Symposium Thermische Solarenergie, 20.-22.04.2016 in Bad Staffelstein}, pages = {1 -- 13}, year = {2016}, language = {de} } @inproceedings{SchwarzerBiegerRicking1990, author = {Schwarzer, Klemens and Bieger, W. and Ricking, N.}, title = {Entwicklung und Erprobung eines solaren Kochers mit tempor{\"a}rem Speicher}, series = {Rationelle Energieverwendung und Nutzung erneuerbarer Energiequellen im regionalen und kommunalen Bereich : : welchen Beitrag k{\"o}nnen sie zur Abwehr der Klimabedrohung leisten?; Frankfurt, 9. - 12. Oktober 1990; [Tagungsbericht] / 7. Internationales Sonnenforum. [Veranst.: Deutsche Gesellschaft f{\"u}r Sonnenenergie e.V., Deutsche Sektion der ISES. Red.: A. Hohmann; H. H. Hohmann]. Bd. 2.}, booktitle = {Rationelle Energieverwendung und Nutzung erneuerbarer Energiequellen im regionalen und kommunalen Bereich : : welchen Beitrag k{\"o}nnen sie zur Abwehr der Klimabedrohung leisten?; Frankfurt, 9. - 12. Oktober 1990; [Tagungsbericht] / 7. Internationales Sonnenforum. [Veranst.: Deutsche Gesellschaft f{\"u}r Sonnenenergie e.V., Deutsche Sektion der ISES. Red.: A. Hohmann; H. H. Hohmann]. Bd. 2.}, publisher = {DGS-Sonnenenergie-Verl.}, address = {M{\"u}nchen}, pages = {1002 -- 1007}, year = {1990}, language = {de} } @inproceedings{LahrsKrisamHerrmann2023, author = {Lahrs, Lennart and Krisam, Pierre and Herrmann, Ulf}, title = {Envisioning a collaborative energy system planning platform for the energy transition at the district level}, series = {The 36th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems}, booktitle = {The 36th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems}, publisher = {Procedings of ECOS 2023}, doi = {10.52202/069564-0284}, pages = {3163 -- 3170}, year = {2023}, abstract = {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.}, language = {en} } @inproceedings{SpaeteWollscheidMeliss1998, author = {Sp{\"a}te, Frank and Wollscheid, Georg and Meliß, Michael}, title = {Erdreichw{\"a}rmetauscher im Solar-Campus J{\"u}lich}, series = {Deutschlands Weg in eine solare Zukunft : Tagungsband; 26. - 30. Juni 1998 Fachhochschule K{\"o}ln / 11. Internationales Sonnenforum}, booktitle = {Deutschlands Weg in eine solare Zukunft : Tagungsband; 26. - 30. Juni 1998 Fachhochschule K{\"o}ln / 11. Internationales Sonnenforum}, publisher = {Solar Promotion}, address = {M{\"u}nchen}, organization = {Deutsche Gesellschaft f{\"u}r Sonnenenergie}, pages = {591 -- 598}, year = {1998}, language = {de} } @inproceedings{SchwarzerKringsFaberetal.1998, author = {Schwarzer, Klemens and Krings, T. and Faber, Christian and Hafner, B.}, title = {Erfahrungen mit Solarkochern verschiedener Gr{\"o}ße f{\"u}r Familien und Institutionen}, series = {Deutschlands Weg in eine solare Zukunft : Tagungsband; 26. - 30. Juni 1998 Fachhochschule K{\"o}ln / 11. Internationales Sonnenforum}, booktitle = {Deutschlands Weg in eine solare Zukunft : Tagungsband; 26. - 30. Juni 1998 Fachhochschule K{\"o}ln / 11. Internationales Sonnenforum}, publisher = {Solar Promotion}, address = {M{\"u}nchen}, organization = {Deutsche Gesellschaft f{\"u}r Sonnenenergie}, pages = {801 -- 809}, year = {1998}, language = {de} } @inproceedings{Meliss1977, author = {Meliß, Michael}, title = {Ergebnisse der deutschen Windenergiestudie}, series = {Energie vom Wind : 4. Tagung am 7. u. 8. Juni in Bremen : Bericht zur Tagung}, booktitle = {Energie vom Wind : 4. Tagung am 7. u. 8. Juni in Bremen : Bericht zur Tagung}, publisher = {Dt. Gesellschaft f{\"u}r Sonnenenergie}, address = {M{\"u}nchen}, pages = {47 -- 69}, year = {1977}, language = {de} } @inproceedings{Goettsche2002, author = {G{\"o}ttsche, Joachim}, title = {Erste Energiebilanz der Studentenwohnungen des Solar-Campus J{\"u}lich}, series = {Zw{\"o}lftes Symposium Thermische Solarenergie : 24. bis 26. April 2002, Kloster Banz, Bad Staffelstein}, booktitle = {Zw{\"o}lftes Symposium Thermische Solarenergie : 24. bis 26. April 2002, Kloster Banz, Bad Staffelstein}, publisher = {OTTI-Energie-Kolleg}, address = {Regensburg}, isbn = {3-934681-20-4}, pages = {251 -- 256}, year = {2002}, language = {de} } @inproceedings{SauerbornKlimekHoffschmidtetal.2012, author = {Sauerborn, Markus and Klimek, J. and Hoffschmidt, Bernhard and Essen, H. and Sieger, S. and Biegel, G. and G{\"o}ttsche, Joachim and Hilger, Patrick}, title = {Eurosun 2012 : radar technology for heliostat posititon control}, series = {Eurosun 2012 : Solar energy for a brighter future : conference proceedings : Rijeka, 18.-22.09.2012}, booktitle = {Eurosun 2012 : Solar energy for a brighter future : conference proceedings : Rijeka, 18.-22.09.2012}, address = {Rijeka}, pages = {ID 80}, year = {2012}, language = {en} } @inproceedings{KruegerAnthrakidisFischeretal.2009, author = {Kr{\"u}ger, Dirk and Anthrakidis, Anette and Fischer, Stephan and Lokurlu, Ahmet and Walder, Markus and Croy, Reiner and Quaschning, Volker}, title = {Experiences with solar steam supply for an industrial steam network in the P3 Project}, series = {SolarPACES 2009 : electricity, fuels and clean water powered by the sun ; 15 - 18 September 2009, Berlin, Germany ; the 15th SolarPACES conference ; proceedings}, booktitle = {SolarPACES 2009 : electricity, fuels and clean water powered by the sun ; 15 - 18 September 2009, Berlin, Germany ; the 15th SolarPACES conference ; proceedings}, publisher = {Deutsches Zentrum f. Luft- u. Raumfahrt}, address = {Stuttgart}, isbn = {9783000287558}, pages = {1 CD-ROM}, year = {2009}, language = {en} } @inproceedings{MayBreitbachAlexopoulosetal.2019, author = {May, Martin and Breitbach, Gerd and Alexopoulos, Spiros and Latzke, Markus and B{\"a}umer, Klaus and Uhlig, Ralf and S{\"o}hn, Matthias and Teixeira Boura, Cristiano Jos{\´e} and Herrmann, Ulf}, title = {Experimental facility for investigations of wire mesh absorbers for pressurized gases}, series = {AIP Conference Proceedings}, volume = {2126}, booktitle = {AIP Conference Proceedings}, issn = {0094243X}, doi = {10.1063/1.5117547}, pages = {030035-1 -- 030035-9}, year = {2019}, language = {en} } @inproceedings{BreitbachAlexopoulosHoffschmidt2007, author = {Breitbach, Gerd and Alexopoulos, Spiros and Hoffschmidt, Bernhard}, title = {Fluid flow in porous ceramic multichannel crossflower filter modules}, publisher = {COMSOL Inc.}, address = {Burlington, Mass.}, pages = {5 S.}, year = {2007}, language = {en} } @inproceedings{FendHoffschmidtReutteretal.2006, author = {Fend, Thomas and Hoffschmidt, Bernhard and Reutter, Oliver and Sauerhering, J{\"o}rg and Pitz-Paal, Robert}, title = {Gas flow in hot porous materials: the solar air receiver and spin-off applications}, series = {Proceedings of the 4th Nanochannels, Microchannels and Minichannels - 2006 : presented at 4th Nanochannels, Microchannels and Minichannels, June 19 - 21, 2006, Limerick, Ireland}, booktitle = {Proceedings of the 4th Nanochannels, Microchannels and Minichannels - 2006 : presented at 4th Nanochannels, Microchannels and Minichannels, June 19 - 21, 2006, Limerick, Ireland}, publisher = {ASME}, address = {New York, NY}, organization = {International Conference on Nanochannels, Microchannels and Minichannels <4, 2006, Limerick>}, isbn = {0-7918-4760-8}, pages = {507 -- 514}, year = {2006}, language = {en} } @inproceedings{Meliss1992, author = {Meliß, Michael}, title = {Globale Betrachtung regenerativer Energieressourcen und deren technische Nutzungsm{\"o}glichkeiten}, series = {Energiehaushalten und CO2-Minderung : Tagung, W{\"u}rzburg, 25. und 26. M{\"a}rz 1992. - (VDI-Berichte. 942)}, booktitle = {Energiehaushalten und CO2-Minderung : Tagung, W{\"u}rzburg, 25. und 26. M{\"a}rz 1992. - (VDI-Berichte. 942)}, publisher = {VDI-Verl.}, address = {D{\"u}sseldorf}, organization = {Gesellschaft Energietechnik}, isbn = {3-18-090942-0}, pages = {153 -- 191}, year = {1992}, language = {de} } @inproceedings{SchulteSchwagerNoureldinetal.2023, author = {Schulte, Jonas and Schwager, Christian and Noureldin, Kareem and May, Martin and Teixeira Boura, Cristiano Jos{\´e} and Herrmann, Ulf}, title = {Gradient controlled startup procedure of a molten-salt power-to-heat energy storage plant based on dynamic process simulation}, series = {SolarPACES: Solar Power \& Chemical Energy Systems}, booktitle = {SolarPACES: Solar Power \& Chemical Energy Systems}, number = {2815 / 1}, publisher = {AIP conference proceedings / American Institute of Physics}, address = {Melville, NY}, isbn = {978-0-7354-4623-6}, issn = {1551-7616 (online)}, doi = {10.1063/5.0148741}, pages = {9 Seiten}, year = {2023}, abstract = {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.}, language = {en} } @inproceedings{SauerbornHoffschmidtTelleetal.2012, author = {Sauerborn, Markus and Hoffschmidt, Bernhard and Telle, R. and Wagner, M.}, title = {Heatable optical analyse system for high temperature absorbers}, series = {30th ISES Biennial Solar World Congress 2011 : : Kassel, Germany, 28 August - 2 September 2011. Vol. 5}, booktitle = {30th ISES Biennial Solar World Congress 2011 : : Kassel, Germany, 28 August - 2 September 2011. Vol. 5}, publisher = {Curran}, address = {Red Hook, NY}, organization = {International Solar Energy Society}, isbn = {978-1-61839-364-7}, pages = {3852 -- 3860}, year = {2012}, language = {en} } @inproceedings{SchwagerAngeleNourietal.2022, author = {Schwager, Christian and Angele, Florian and Nouri, Bijan and Schwarzb{\"o}zl, Peter and Teixeira Boura, Cristiano Jos{\´e} and Herrmann, Ulf}, title = {Impact of DNI forecast quality on performance prediction for a commercial scale solar tower: Application of nowcasting DNI maps to dynamic solar tower simulation}, series = {SolarPACES conference proceedings}, booktitle = {SolarPACES conference proceedings}, number = {Vol. 1}, publisher = {TIB Open Publishing}, address = {Hannover}, issn = {2751-9899 (online)}, doi = {10.52825/solarpaces.v1i.675}, pages = {9 Seiten}, year = {2022}, abstract = {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.}, language = {en} } @inproceedings{SchwagerTeixeiraBouraFleschetal.2019, author = {Schwager, Christian and Teixeira Boura, Cristiano Jos{\´e} and Flesch, Robert and Alexopoulos, Spiros and Herrmann, Ulf}, title = {Improved efficiency prediction of a molten salt receiver based on dynamic cloud passage simulation}, series = {AIP Conference Proceedings}, volume = {2126}, booktitle = {AIP Conference Proceedings}, number = {1}, isbn = {978-0-7354-1866-0}, doi = {10.1063/1.5117566}, pages = {030054-1 -- 030054-8}, year = {2019}, language = {en} } @inproceedings{SauerbornArshadiRohrmoser2012, author = {Sauerborn, Markus and Arshadi, S. and Rohrmoser, R.}, title = {Influence of clouds and aerosols to the haze of the sunshape}, series = {30th ISES Biennial Solar World Congress 2011 : Kassel, Germany, 28 August - 2 September 2011. Vol. 5}, booktitle = {30th ISES Biennial Solar World Congress 2011 : Kassel, Germany, 28 August - 2 September 2011. Vol. 5}, publisher = {Curran}, address = {Red Hook, NY}, organization = {International Solar Energy Society}, pages = {3887 -- 3894}, year = {2012}, language = {en} } @inproceedings{FrickeZiolkoAnthrakidisetal.2012, author = {Fricke, Barbara and Ziolko, C. and Anthrakidis, Anette and Alexopoulos, Spiros and Hoffschmidt, Bernhard and Giese, F. and Dillig, M.}, title = {InnoSol - environmental aspects of the open volumetric receiver technology}, series = {30th ISES Biennial Solar World Congress 2011 : : Kassel, Germany, 28 August - 2 September 2011. Vol. 5}, booktitle = {30th ISES Biennial Solar World Congress 2011 : : Kassel, Germany, 28 August - 2 September 2011. Vol. 5}, publisher = {Curran}, address = {Red Hook, NY}, organization = {International Solar Energy Society}, pages = {3895 -- 3900}, year = {2012}, language = {en} } @inproceedings{FrickeZiolkoAnthrakidisetal.2011, author = {Fricke, Barbara and Ziolko, C. and Anthrakidis, Anette and Alexopoulos, Spiros and Hoffschmidt, Bernhard and Dillig, M. and Giese, F.}, title = {InnoSol - life cycle analysis of solar power tower plants}, series = {SolarPACES 2011 : concentrating solar power and chemical energy systems : 20 - 23 September, 2011, Granada, Spain}, booktitle = {SolarPACES 2011 : concentrating solar power and chemical energy systems : 20 - 23 September, 2011, Granada, Spain}, address = {Granada}, pages = {1 CD-ROM}, year = {2011}, language = {en} } @inproceedings{SchulzeBuxlohGross2021, author = {Schulze-Buxloh, Lina and Groß, Rolf Fritz}, title = {Interdisciplinary Course Smart Building Engineering: A new approach of teaching freshmen in remote teamwork project under pandemic restrictions}, series = {New Perspectives in Science Education -International Conference (virtual event, 18-19 March 2021)}, booktitle = {New Perspectives in Science Education -International Conference (virtual event, 18-19 March 2021)}, publisher = {Filodiritto}, address = {Bologna}, pages = {4 Seiten}, year = {2021}, abstract = {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.}, language = {en} } @inproceedings{NiederwestbergSchneiderTeixeiraBouraetal.2022, author = {Niederwestberg, Stefan and Schneider, Falko and Teixeira Boura, Cristiano Jos{\´e} and Herrmann, Ulf}, title = {Introduction to a direct irradiated transparent tube particle receiver}, series = {SOLARPACES 2020}, booktitle = {SOLARPACES 2020}, number = {2445 / 1}, publisher = {AIP conference proceedings / American Institute of Physics}, address = {Melville, NY}, isbn = {978-0-7354-4195-8}, issn = {1551-7616 (online)}, doi = {10.1063/5.0086735}, pages = {9 Seiten}, year = {2022}, abstract = {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.}, language = {en} } @inproceedings{Sauerborn2011, author = {Sauerborn, Markus}, title = {Investigations to the influence of clouds and aerosols to the haze of the sunshape}, series = {SolarPACES 2011 : concentrating solar power and chemical energy systems : 20 - 23 September, 2011, Granada, Spain}, booktitle = {SolarPACES 2011 : concentrating solar power and chemical energy systems : 20 - 23 September, 2011, Granada, Spain}, address = {Granada}, pages = {1 CD-ROM}, year = {2011}, language = {en} } @inproceedings{Hoffschmidt2011, author = {Hoffschmidt, Bernhard}, title = {Kooperationen und Ziele am Standort J{\"u}lich}, series = {Forschung und Entwicklung f{\"u}r solarthermische Kraftwerke : 14. K{\"o}lner Sonnenkolloquium Mittwoch, 13. Juli 2011, im Auditorium des Campus J{\"u}lich der FH Aachen : Kurzfassungen der Vortr{\"a}ge und Poster}, booktitle = {Forschung und Entwicklung f{\"u}r solarthermische Kraftwerke : 14. K{\"o}lner Sonnenkolloquium Mittwoch, 13. Juli 2011, im Auditorium des Campus J{\"u}lich der FH Aachen : Kurzfassungen der Vortr{\"a}ge und Poster}, publisher = {DLR}, address = {K{\"o}ln}, pages = {4 S.}, year = {2011}, language = {de} } @inproceedings{IlleSchrammAdametal.2009, author = {Ille, Fabian and Schramm, S. and Adam, M. and Backes, K. and Anthrakidis, Anette and Faber, Christian}, title = {Kraft-W{\"a}rme-K{\"a}lte-Kopplung im Leistungsbereich in 10kW mit periodisch arbeitender Sorptionsmaschine}, series = {DKV-Tagungsbericht. 35,2,1. Deutsche K{\"a}lte-Klima-Tagung 2008 Ulm}, booktitle = {DKV-Tagungsbericht. 35,2,1. Deutsche K{\"a}lte-Klima-Tagung 2008 Ulm}, publisher = {Dt. K{\"a}lte- und Klimatechnischer Verein}, address = {Hannover}, isbn = {978-3-932715-44-0}, pages = {305 -- 320}, year = {2009}, language = {de} } @inproceedings{Hartz2004, author = {Hartz, Thomas}, title = {LACASA - ein Instrument zur energetischen Analyse und Optimierung von Geb{\"a}uden mit Anlagentechnik}, series = {14. Symposium Thermische Solarenergie : 12. bis 14. Mai 2004, Kloster Banz, Bad Staffelstein / OTTI-Kolleg Technik, Energie, Management}, booktitle = {14. Symposium Thermische Solarenergie : 12. bis 14. Mai 2004, Kloster Banz, Bad Staffelstein / OTTI-Kolleg Technik, Energie, Management}, publisher = {OTTI-Energie-Kolleg}, address = {Regensburg}, pages = {402 -- 406}, year = {2004}, language = {de} } @inproceedings{AnthrakidisRusackSchwarzer2010, author = {Anthrakidis, Anette and Rusack, Markus and Schwarzer, Klemens}, title = {Low effort measurement method of PTC-efficiency}, series = {SolarPACES 2010 : the CSP conference: electricity, fuels and clean water from concentrated solar energy ; 21 to 24 September 2010, Perpignan, France}, booktitle = {SolarPACES 2010 : the CSP conference: electricity, fuels and clean water from concentrated solar energy ; 21 to 24 September 2010, Perpignan, France}, publisher = {Soc. OSC}, address = {Saint Maur}, pages = {48 -- 49}, year = {2010}, language = {en} } @inproceedings{BeckmoellerWoltersBreitbachetal.1995, author = {Beckm{\"o}ller, S. and Wolters, J. and Breitbach, Gerd and Penkalla, H. J. and Schubert, F.}, title = {Microstructural dependent constitutive equation for inelastic analysis of internally cooled IN 738 LC turbine blades}, series = {Materials for advanced power engineering 1994 : proceedings of a conference held in Liege, Belgium, 3 - 6 Oct. 1994}, booktitle = {Materials for advanced power engineering 1994 : proceedings of a conference held in Liege, Belgium, 3 - 6 Oct. 1994}, publisher = {Kluwer}, address = {Dordrecht}, isbn = {0792330749}, pages = {829 -- 839}, year = {1995}, language = {en} } @inproceedings{SauerbornHoffschmidtGoettscheetal.2009, author = {Sauerborn, Markus and Hoffschmidt, Bernhard and G{\"o}ttsche, Joachim and Schmitz, S. and Rebholz, C. and Ansorge, F. and Ifland, D.}, title = {Mini-Spiegel-Array f{\"u}r solarthermische Kraftwerke : [Vortragsfolien]}, series = {DPG-Fr{\"u}hjahrstagung, Arbeitskreis Energie, Hamburg 03.03.2009}, booktitle = {DPG-Fr{\"u}hjahrstagung, Arbeitskreis Energie, Hamburg 03.03.2009}, pages = {1 -- 10}, year = {2009}, language = {de} } @inproceedings{SchulzeBuxlohGross2021, author = {Schulze-Buxloh, Lina and Groß, Rolf Fritz}, title = {Miniature urban farming plant: a complex educational "Toy" for engineering students}, series = {The Future of Education 11th Edition 2021}, booktitle = {The Future of Education 11th Edition 2021}, pages = {4 Seiten}, year = {2021}, abstract = {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.}, language = {en} } @inproceedings{SchwagerAngeleSchwarzboezletal.2023, author = {Schwager, Christian and Angele, Florian and Schwarzb{\"o}zl, Peter and Teixeira Boura, Cristiano Jos{\´e} and Herrmann, Ulf}, title = {Model predictive assistance for operational decision making in molten salt receiver systems}, series = {SolarPACES: Solar Power \& Chemical Energy Systems}, booktitle = {SolarPACES: Solar Power \& Chemical Energy Systems}, number = {2815 / 1}, publisher = {AIP conference proceedings / American Institute of Physics}, address = {Melville, NY}, isbn = {978-0-7354-4623-6}, issn = {1551-7616 (online)}, doi = {10.1063/5.0151514}, pages = {8 Seiten}, year = {2023}, abstract = {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.}, language = {en} } @inproceedings{RendonSchwagerGhiasietal.2020, author = {Rendon, Carlos and Schwager, Christian and Ghiasi, Mona and Schmitz, Pascal and Bohang, Fakhri and Caminos, Ricardo Alexander Chico and Teixeira Boura, Cristiano Jos{\´e} and Herrmann, Ulf}, title = {Modeling and upscaling of a pilot bayonettube reactor for indirect solar mixed methane reforming}, series = {AIP Conference Proceedings}, booktitle = {AIP Conference Proceedings}, number = {2303}, doi = {10.1063/5.0029974}, pages = {170012-1 -- 170012-9}, year = {2020}, language = {en} } @inproceedings{ZahraPhaniSrujanCaminosetal.2022, author = {Zahra, Mahdi and Phani Srujan, Merige and Caminos, Ricardo Alexander Chico and Schmitz, Pascal and Herrmann, Ulf and Teixeira Boura, Cristiano Jos{\´e} and Schmitz, Mark and Gielen, Hans and Gedle, Yibekal and Dersch, J{\"u}rgen}, title = {Modeling the thermal behavior of solar salt in electrical resistance heaters for the application in PV-CSP hybrid power plants}, series = {SOLARPACES 2020}, booktitle = {SOLARPACES 2020}, number = {2445 / 1}, publisher = {AIP conference proceedings / American Institute of Physics}, address = {Melville, NY}, isbn = {978-0-7354-4195-8}, issn = {1551-7616 (online)}, doi = {10.1063/5.0086268}, pages = {9 Seiten}, year = {2022}, abstract = {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.}, language = {en} } @inproceedings{AlexopoulosRauHoffschmidtetal.2012, author = {Alexopoulos, Spiros and Rau, Christoph and Hoffschmidt, Bernhard and Breitbach, Gerd and Latzke, Markus}, title = {Modelling and validation of a transient heat recovery steam generator of the solar tower power plant Juelich}, series = {Eurosun 2012 : Solar energy for a brighter future : conference proceedings : Rijeka, 18.-22.09.2012}, booktitle = {Eurosun 2012 : Solar energy for a brighter future : conference proceedings : Rijeka, 18.-22.09.2012}, address = {Rijeka}, pages = {ID 97}, year = {2012}, language = {en} } @inproceedings{vonHeesenFaber1992, author = {von Heesen, W. and Faber, Christian}, title = {Modenfilter als Schalld{\"a}mpfer f{\"u}r axiale Turbomaschinen : M{\"o}glichkeiten und Grenzen des Einsatzes}, series = {Schalltechnik '92 : L{\"a}rmminderung durch Schalld{\"a}mpfer ; Tagung B{\"o}blingen, 19. und 20. Mai 1992 / Normenausschuß Akustik, L{\"a}rmminderung und Schwingungstechnik (NALS) im DIN und VDI. VDI-Berichte. 938}, booktitle = {Schalltechnik '92 : L{\"a}rmminderung durch Schalld{\"a}mpfer ; Tagung B{\"o}blingen, 19. und 20. Mai 1992 / Normenausschuß Akustik, L{\"a}rmminderung und Schwingungstechnik (NALS) im DIN und VDI. 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