TY - RPRT A1 - Schwarzer, Klemens A1 - Göttsche, Joachim A1 - Jellinghaus, Sabine T1 - Farblichtstudie : Beleuchtung mit gesteuertem Farblicht - Untersuchung und Optimierung von Systemen zur Farblichtsteuerung : Abschlussbericht März 2006 Y1 - 2006 ER - TY - CHAP A1 - Schwarzer, Klemens A1 - Faber, Christian A1 - Meliß, Michael A1 - Späte, F. T1 - Solar-Institut Jülich (SIJ), Fachhochschule Aachen, Division Jülich Germany T2 - Harmony with nature : proceedings / ISES Solar World Congress, Budapest 1993. International Solar Energy Society, Hungarian Section (H-ISES); Hungarian Solar Energy Society (HSES). Vol. 1: Energy policy, environment, education Y1 - 1993 SP - 349 EP - 354 PB - Hungarian Energy Society CY - Budapest ER - TY - CHAP A1 - Schwarzer, Klemens A1 - Bieger, W. A1 - Ricking, N. A1 - Bansal, Narenda K. T1 - Solar cooker with a rock bed cum oil storage T2 - 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. 3,II Y1 - 1991 SN - 0-08-041690-x SP - 3751 EP - 3756 PB - Pergamon Pr. CY - Oxford ER - TY - CHAP A1 - Schwarzer, Klemens A1 - Bieger, W. A1 - Ricking, N. T1 - Entwicklung und Erprobung eines solaren Kochers mit temporärem Speicher T2 - Rationelle Energieverwendung und Nutzung erneuerbarer Energiequellen im regionalen und kommunalen Bereich : : welchen Beitrag können sie zur Abwehr der Klimabedrohung leisten?; Frankfurt, 9. - 12. Oktober 1990; [Tagungsbericht] / 7. Internationales Sonnenforum. [Veranst.: Deutsche Gesellschaft für Sonnenenergie e.V., Deutsche Sektion der ISES. Red.: A. Hohmann; H. H. Hohmann]. Bd. 2. Y1 - 1990 SP - 1002 EP - 1007 PB - DGS-Sonnenenergie-Verl. CY - München ER - TY - CHAP A1 - Schwarzer, Klemens T1 - A new kind of efficient solar cookers with and without temporary heat storage T2 - Advances in solar cooking : proceedings of the First World Conference on Solar Cooking, Stockton, California, USA, June 19 - 20, 1992 / ed. by Edwin Pejack Y1 - 1992 SP - 107 EP - 112 PB - Solar Box Cookers International CY - Sacramento, Calif. ER - TY - CHAP A1 - Schwarzer, Klemens T1 - Solarthermisches Entsalzungssystem mit Wärmerückgewinnung - Erste Feldtestergebnisse T2 - 16. Symposium Thermische Solarenergie : 17. bis 19. Mai 2006, Kloster Banz, Bad Staffelstein Y1 - 2006 SN - 3-934681-45-X SP - 173 EP - 178 PB - Ostbayer. Technologie-Transfer-Inst. CY - Regensburg ER - TY - CHAP A1 - Schwarzer, Klemens T1 - Desalination systems with renewable energies T2 - DME Seminar Desalination and Renewable Energies : June 19 and 20 2008, Solar Institut Jülich / Deutsche Meerwasserentsalzung e.V. Y1 - 2008 SN - 978-3-86861-017-8 PB - DME CY - Duisburg ER - TY - CHAP A1 - Schwarzbözl, Peter A1 - Pomp, Stefan A1 - Koll, Gerrit A1 - Hennecke, Klaus A1 - Hartz, Thomas A1 - Schmitz, Mark A1 - Hoffschmidt, Bernhard T1 - The solar tower Jülich - first operational experiences and test results T2 - SolarPACES 2010 : the CSP Conference: electricity, fuels and clean water from concentrated solar energy ; 21 to 24 September 2010, Perpignan, France Y1 - 2010 SP - 8 EP - 9 PB - Soc. OSC CY - Saint Maur ER - TY - CHAP A1 - Schwager, Christian A1 - Teixeira Boura, Cristiano José A1 - Flesch, Robert A1 - Alexopoulos, Spiros A1 - Herrmann, Ulf T1 - Improved efficiency prediction of a molten salt receiver based on dynamic cloud passage simulation T2 - AIP Conference Proceedings Y1 - 2019 SN - 978-0-7354-1866-0 U6 - https://doi.org/10.1063/1.5117566 VL - 2126 IS - 1 SP - 030054-1 EP - 030054-8 ER - TY - JOUR A1 - Schwager, Christian A1 - Flesch, Robert A1 - Schwarzbözl, Peter A1 - Herrmann, Ulf A1 - Teixeira Boura, Cristiano José T1 - Advanced two phase flow model for transient molten salt receiver system simulation JF - Solar Energy N2 - In order to realistically predict and optimize the actual performance of a concentrating solar power (CSP) plant sophisticated simulation models and methods are required. This paper presents a detailed dynamic simulation model for a Molten Salt Solar Tower (MST) system, which is capable of simulating transient operation including detailed startup and shutdown procedures including drainage and refill. For appropriate representation of the transient behavior of the receiver as well as replication of local bulk and surface temperatures a discretized receiver model based on a novel homogeneous two-phase (2P) flow modelling approach is implemented in Modelica Dymola®. This allows for reasonable representation of the very different hydraulic and thermal properties of molten salt versus air as well as the transition between both. This dynamic 2P receiver model is embedded in a comprehensive one-dimensional model of a commercial scale MST system and coupled with a transient receiver flux density distribution from raytracing based heliostat field simulation. This enables for detailed process prediction with reasonable computational effort, while providing data such as local salt film and wall temperatures, realistic control behavior as well as net performance of the overall system. Besides a model description, this paper presents some results of a validation as well as the simulation of a complete startup procedure. Finally, a study on numerical simulation performance and grid dependencies is presented and discussed. KW - Molten salt solar tower KW - Molten salt receiver system KW - Dynamic simulation KW - Two-phase modelling KW - Transient flux distribution Y1 - 2022 U6 - https://doi.org/10.1016/j.solener.2021.12.065 SN - 0038-092X (print) SN - 1471-1257 (online) VL - 232 SP - 362 EP - 375 PB - Elsevier CY - Amsterdam ER -