Dokument-ID Dokumenttyp Verfasser/Autoren Herausgeber Haupttitel Abstract Auflage Verlagsort Verlag Erscheinungsjahr Seitenzahl Schriftenreihe Titel Schriftenreihe Bandzahl ISBN Quelle der Hochschulschrift Konferenzname Bemerkung Quelle:Titel Quelle:Jahrgang Quelle:Heftnummer Quelle:Erste Seite Quelle:Letzte Seite URN DOI Zugriffsart Link Abteilungen OPUS4-4483 Wissenschaftlicher Artikel Göttsche, Joachim, goettsche@sij.fh-aachen.de; Hoffschmidt, Bernhard, hoffschmidt@sij.fh-aachen.de; Alexopoulos, Spiros, alexopoulos@sij.fh-aachen.de; Funke, J., ; Schwarzbözl, P., First Simulation Results for the Hybridization of Small Solar Power Tower Plants Lisbon Sociedade Portuguesa De Energia Solar (SPES) 2008 7 EuroSun 2008 : 1st International Conference on Solar Heating, Cooling and Buildings, 2008-10-07 - 2008-10-10, Lissabon (Portugal). Vol. 1 978-1-61782-228-5 Kurzfassung unter http://elib.dlr.de/56357/ 1299 1306 Solar-Institut Jülich OPUS4-5089 Wissenschaftlicher Artikel Alexopoulos, Spiros, alexopoulos@sij.fh-aachen.de Biogas systems: basics, biogas multifunction, principle of fermentation and hybrid application with a solar tower for the treatment of waste animal manure Two of the main environmental problems of today's society are the continuously increasing production of organic wastes as well as the increase of carbon dioxide in the atmosphere and the related green house effect. A way to solve these problems is the production of biogas. Biogas is a combustible gas consisting of methane, carbon dioxide and small amounts of other gases and trace elements. Production of biogas through anaerobic digestion of animal manure and slurries as well as of a wide range of digestible organic wastes and agricultural residues, converts these substrates into electricity and heat and offers a natural fertiliser for agriculture. The microbiological process of decomposition of organic matter, in the absence of oxygen takes place in reactors, called digesters. Biogas can be used as a fuel in a gas turbine or burner and can be used in a hybrid solar tower system offering a solution for waste treatment of agricultural and animal residues. A solar tower system consists of a heliostat field, which concentrates direct solar irradiation on an open volumetric central receiver. The receiver heats up ambient air to temperatures of around 700°C. The hot air's heat energy is transferred to a steam Rankine cycle in a heat recovery steam generator (HRSG). The steam drives a steam turbine, which in turn drives a generator for producing electricity. In order to increase the operational hours of a solar tower power plant, a heat storage system and/ or hybridization may be considered. The advantage of solar-fossil hybrid power plants, compared to solar-only systems, lies in low additional investment costs due to an adaptable solar share and reduced technical and economical risks. On sunny days the hybrid system operates in a solar-only mode with the central receiver and on cloudy days and at night with the gas turbine only. As an alternative to methane gas, environmentally neutral biogas can be used for operating the gas turbine. Hence, the hybrid system is operated to 100% from renewable energy sources 2012 7 Journal of Engineering Science and Technology Review 5 Special Issue on Renewable Energy Systems 4 48 55 campus http://www.jestr.org/downloads/Volume5Issue4/10.pdf Solar-Institut Jülich OPUS4-5721 Konferenzveröffentlichung Alexopoulos, Spiros, alexopoulos@sij.fh-aachen.de; Rau, Christoph, rau@sij.fh-aachen.de; Hoffschmidt, Bernhard, hoffschmidt@sij.fh-aachen.de; Breitbach, Gerd, breitbach@fh-aachen.de; Latzke, Markus, latzke@sij.fh-aachen.de Modelling and validation of a transient heat recovery steam generator of the solar tower power plant Juelich Rijeka 2012 Eurosun 2012 : Solar energy for a brighter future : conference proceedings : Rijeka, 18.-22.09.2012 ID 97 Solar-Institut Jülich OPUS4-5722 Konferenzveröffentlichung Alexopoulos, Spiros, alexopoulos@sij.fh-aachen.de; Kluczka, Sven, kluczka@sij.fh-aachen.de; Vaeßen, Christiane, vaessen@fh-aachen.de; Roeb, M., ; Neises, M., Scenario development for efficient methanol production using CO2 and solar energy Rijeka 2012 Eurosun 2012 : Solar energy for a brighter future : conference proceedings : Rijeka, 18.-22.09.2012 ID 99 Solar-Institut Jülich OPUS4-5724 Konferenzveröffentlichung Hoffschmidt, Bernhard, hoffschmidt@sij.fh-aachen.de; Alexopoulos, Spiros, alexopoulos@sij.fh-aachen.de Perspektiven für Solarthermische Kraftwerke im Sonnengürtel Baf Honnef DPG 2012 12 Energiewende : Aspekte, Optionen, Herausforderungen : Vorträge auf der DPG-Frühjahrstagung Arbeitskreis Energie in der Deutschen Physikalischen Gesellschaft Berlin, 26. bis 28. März 2012 / hrsg. von Hardo Bruhns 81 93 weltweit http://www.uni-saarland.de/fak7/fze/AKE_Archiv/DPG2012-AKE_Berlin/Buch/DPG2012_AKE8.2Hoffschmidt_SolarthermischeKraftwerke_p81.pdf Solar-Institut Jülich OPUS4-5661 Konferenzveröffentlichung Breitbach, Gerd, breitbach@fh-aachen.de; Alexopoulos, Spiros, alexopoulos@sij.fh-aachen.de; Hoffschmidt, Bernhard, hoffschmidt@sij.fh-aachen.de Fluid flow in porous ceramic multichannel crossflower filter modules Burlington, Mass. COMSOL Inc. 2007 5 S. weltweit http://www.comsol.com/paper/download/98275/Breitbach.pdf Solar-Institut Jülich OPUS4-5734 Teil eines Buches Hoffschmidt, Bernhard, hoffschmidt@sij.fh-aachen.de; Alexopoulos, Spiros, alexopoulos@sij.fh-aachen.de; Göttsche, Joachim, goettsche@sij.fh-aachen.de; Sauerborn, Markus, sauerborn@sij.fh-aachen.de High concentration solar collectors Solar thermal concentrated power is an emerging technology that provides clean electricity for the growing energy market. To the solar thermal concentrated power plant systems belong the parabolic trough, the Fresnel collector, the solar dish, and the central receiver system. For high-concentration solar collector systems, optical and thermal analysis is essential. There exist a number of measurement techniques and systems for the optical and thermal characterization of the efficiency of solar thermal concentrated systems. For each system, structure, components, and specific characteristics types are described. The chapter presents additionally an outline for the calculation of system performance and operation and maintenance topics. One main focus is set to the models of components and their construction details as well as different types on the market. In the later part of this chapter, different criteria for the choice of technology are analyzed in detail. Amsterdam Elsevier 2012 44 Comprehensive renewable energy / ed. Ali Sayigh. Vol. 3: Solar thermal systems: components and applications 3 978-0-08-087873-7 165 209 10.1016/B978-0-08-087872-0.00306-1 bezahl http://www.sciencedirect.com/science/article/pii/B9780080878720003061 Solar-Institut Jülich OPUS4-5686 Konferenzveröffentlichung Alexopoulos, Spiros, alexopoulos@sij.fh-aachen.de; Hoffschmidt, Bernhard, hoffschmidt@sij.fh-aachen.de; Rau, Christoph, rau@sij.fh-aachen.de; Schwarzbözl, Peter, Simulation results for a hybridization concept of a small solar tower power plant Stuttgart Deutsches Zentrum f. Luft- u. Raumfahrt 2009 1 CD-ROM SolarPACES 2009 : electricity, fuels and clean water powered by the sun ; 15 - 18 September 2009, Berlin, Germany ; the 15th SolarPACES conference ; proceedings 9783000287558 Solar-Institut Jülich OPUS4-5691 Konferenzveröffentlichung Alexopoulos, Spiros, alexopoulos@sij.fh-aachen.de; Breitbach, Gerd, breitbach@fh-aachen.de; Hoffschmidt, Bernhard, hoffschmidt@sij.fh-aachen.de Optimization of the channel form geometry of porous ReSiC ceramic membrane modules Meerbusch Filtech Exhibitions Germany 2009 781 S. Proceedings / International Conference & Exhibition for Filtration and Separation Technology, FILTECH 2009 : October 13 - 15, 2009, Wiesbaden, Germany. Vol. 2 978-3-941655-36-2 686 693 Solar-Institut Jülich OPUS4-5699 Konferenzveröffentlichung Fricke, Barbara, fricke@sij.fh-aachen.de; Ziolko, C., ; Anthrakidis, Anette, anthrakidis@sij.fh-aachen.de; Alexopoulos, Spiros, alexopoulos@sij.fh-aachen.de; Hoffschmidt, Bernhard, hoffschmidt@sij.fh-aachen.de; Giese, F., ; Dillig, M., InnoSol - environmental aspects of the open volumetric receiver technology Red Hook, NY Curran 2012 S. 3412 - 4265 30th ISES Biennial Solar World Congress 2011 : : Kassel, Germany, 28 August - 2 September 2011. Vol. 5 3895 3900 Solar-Institut Jülich OPUS4-5709 Konferenzveröffentlichung Fricke, Barbara, fricke@sij.fh-aachen.de; Ziolko, C., ; Anthrakidis, Anette, anthrakidis@sij.fh-aachen.de; Alexopoulos, Spiros, alexopoulos@sij.fh-aachen.de; Hoffschmidt, Bernhard, hoffschmidt@sij.fh-aachen.de; Dillig, M., ; Giese, F., InnoSol - life cycle analysis of solar power tower plants Granada 2011 1 CD-ROM SolarPACES 2011 : concentrating solar power and chemical energy systems : 20 - 23 September, 2011, Granada, Spain Solar-Institut Jülich OPUS4-5710 Konferenzveröffentlichung Alexopoulos, Spiros, alexopoulos@sij.fh-aachen.de; Hoffschmidt, Bernhard, hoffschmidt@sij.fh-aachen.de; Rau, Christoph, rau@sij.fh-aachen.de Comparison of steady-state and transient simulations for solar tower power plants with open-volumetric receiver Granada 2011 1 CD-ROM SolarPACES 2011 : concentrating solar power and chemical energy systems : 20 - 23 September, 2011, Granada, Spain Solar-Institut Jülich OPUS4-5868 Konferenzveröffentlichung Alexopoulos, Spiros, alexopoulos@sij.fh-aachen.de; Hoffschmidt, Bernhard, hoffschmidt@sij.fh-aachen.de; Rau, Christoph, rau@sij.fh-aachen.de; Schmitz, M., ; Schwarzbözl, P., ; Pomp, Stefan, Simulation results for a hybridized operation of a gas turbine or a burner for a small solar tower power plant Saint Maur Soc. OSC 2010 1 SolarPACES 2010 : the CSP Conference: electricity, fuels and clean water from concentrated solar energy ; 21 to 24 September 2010, Perpignan, France 82 83 Solar-Institut Jülich OPUS4-6411 Bericht Hoffschmidt, Bernhard, hoffschmidt@sij.fh-aachen.de; Alexopoulos, Spiros, alexopoulos@sij.fh-aachen.de Entwicklung der Designvoraussetzungen für ein hybrides Solarthermisches Kraftwerk : Kurztitel: HybSol ; Abschlussbericht ; Berichtszeitraum: 01.03.2007 - 31.10.2010 ; [Förderprogramm: FHprofUnt] Jülich Solar-Inst. 2011 114 S. Solar-Institut Jülich OPUS4-6396 Teil eines Buches Alexopoulos, Spiros, alexopoulos@sij.fh-aachen.de Biomass technology and bio-fuels: Heating/cooling and power Hauppauge, NY Nova Science Publ. 2013 22 Renewable energy systems : theory, innovations, and intelligent applications / eds.: Socrates Kaplanis and Eleni Kaplani 9781624177415 501 523 Solar-Institut Jülich OPUS4-6701 Wissenschaftlicher Artikel Kluczka, Sven, kluczka@sij.fh-aachen.de; Eckstein, Julian, ; Alexopoulos, Spiros, alexopoulos@sij.fh-aachen.de; Vaeßen, Christiane, vaessen@fh-aachen.de; Roeb, Martin, Process simulation for solar steam and dry reforming In co-operation with the German Aerospace Center, the Solar-Institut Jülich has been analyzing the different technologies that are available for methanol production from CO2 using solar energy. The aim of the project is to extract CO2 from industrial exhaust gases or directly from the atmosphere to recycle it by use of solar energy. Part of the study was the modeling and simulating of a methane reformer for the production of synthesis gas, which can be operated by solar or hybrid heat sources. The reformer has been simplified in such a way that the model is accurate and enables fast calculations. The developed pseudo-homogeneous one- dimensional model can be regarded as a kind of counter-current heat exchanger and is able to incorporate a steam reforming reaction as well as a dry reforming reaction. Amsterdam Elsevier 2014 9 Energy procedia : Proceedings of the SolarPACES 2013 International Conference 49 850 859 10.1016/j.egypro.2014.03.092 weltweit https://doi.org/10.1016/j.egypro.2014.03.092 Solar-Institut Jülich OPUS4-7073 Wissenschaftlicher Artikel Alexopoulos, Spiros, alexopoulos@sij.fh-aachen.de Simulation model for the transient process behaviour of solar aluminium recycling in a rotary kiln Amsterdam Elsevier 2015 9 Applied Thermal Engineering 78 Autor im Original: Spiridon O. Alexopoulos 387 396 10.1016/j.applthermaleng.2015.01.007 campus Solar-Institut Jülich OPUS4-7933 Wissenschaftlicher Artikel Alexopoulos, Spiros, alexopoulos@sij.fh-aachen.de; Hoffschmidt, Bernhard, hoffschmidt@sij.fh-aachen.de Advances in solar tower technology Weinheim Wiley 2017 18 Wiley interdisciplinary reviews : Energy and Environment : WIREs 6 1 1 19 10.1002/wene.217 Fachbereich Energietechnik OPUS4-9544 Konferenzveröffentlichung El Moussaoui, Noureddine, ; Kassmi, Khalil, ; Alexopoulos, Spiros, alexopoulos@sij.fh-aachen.de; Schwarzer, Klemens, schwarzer@sij.fh-aachen.de; Chayeb, Hamid, ; Bachiri, Najib, Simulation studies on a new innovative design of a hybrid solar distiller MSDH alimented with a thermal and photovoltaic energy 2021 Materialstoday: Proceedings 10.1016/j.matpr.2021.03.115 bezahl Fachbereich Energietechnik OPUS4-9485 Wissenschaftlicher Artikel Göttsche, Joachim, goettsche@sij.fh-aachen.de; Alexopoulos, Spiros, alexopoulos@sij.fh-aachen.de; Dümmler, Andreas, duemmler@fh-aachen.de; Maddineni, S. K., Multi-Mirror Array Calculations With Optical Error The optical performance of a 2-axis solar concentrator was simulated with the COMSOL Multiphysics® software. The concentrator consists of a mirror array, which was created using the application builder. The mirror facets are preconfigured to form a focal point. During tracking all mirrors are moved simultaneously in a coupled mode by 2 motors in two axes, in order to keep the system in focus with the moving sun. Optical errors on each reflecting surface were implemented in combination with the solar angular cone of ± 4.65 mrad. As a result, the intercept factor of solar radiation that is available to the receiver was calculated as a function of the transversal and longitudinal angles of incidence. In addition, the intensity distribution on the receiver plane was calculated as a function of the incidence angles. 2019 5 Link direkt zum PDF-Download: https://www.comsol.jp/paper/download/856481/200918_SCO4_Paper_COMSOL_jg.pdf 1 6 weltweit https://www.comsol.com/paper/multi-mirror-array-calculations-with-optical-error-95421 Fachbereich Energietechnik OPUS4-9924 Teil eines Buches Hoffschmidt, Bernhard, hoffschmidt@sij.fh-aachen.de; Alexopoulos, Spiros, alexopoulos@sij.fh-aachen.de; Göttsche, Joachim, goettsche@sij.fh-aachen.de; Sauerborn, Markus, sauerborn@sij.fh-aachen.de; Kaufhold, O., High Concentration Solar Collectors Solar thermal concentrated power is an emerging technology that provides clean electricity for the growing energy market. To the solar thermal concentrated power plant systems belong the parabolic trough, the Fresnel collector, the solar dish, and the central receiver system. For high-concentration solar collector systems, optical and thermal analysis is essential. There exist a number of measurement techniques and systems for the optical and thermal characterization of the efficiency of solar thermal concentrated systems. For each system, structure, components, and specific characteristics types are described. The chapter presents additionally an outline for the calculation of system performance and operation and maintenance topics. One main focus is set to the models of components and their construction details as well as different types on the market. In the later part of this article, different criteria for the choice of technology are analyzed in detail. Amsterdam Elsevier 2022 47 Comprehensive Renewable Energy (Second Edition) / Volume 3: Solar Thermal Systems: Components and Applications 978-0-12-819734-9 198 245 10.1016/B978-0-12-819727-1.00058-3 bezahl https://doi.org/10.1016/B978-0-12-819727-1.00058-3 Fachbereich Energietechnik OPUS4-6127 Wissenschaftlicher Artikel Rau, Christoph, rau@sij.fh-aachen.de; Alexopoulos, Spiros, alexopoulos@sij.fh-aachen.de; Breitbach, Gerd, breitbach@fh-aachen.de; Hoffschmidt, Bernhard, hoffschmidt@sij.fh-aachen.de; Latzke, Markus, latzke@sij.fh-aachen.de; Sattler, Johannes, Christoph, sattler@sij.fh-aachen.de Transient simulation of a solar-hybrid tower power plant with open volumetric receiver at the location Barstow In this work the transient simulations of four hybrid solar tower power plant concepts with open-volumetric receiver technology for a location in Barstow-Daggett, USA, are presented. The open-volumetric receiver uses ambient air as heat transfer fluid and the hybridization is realized with a gas turbine. The Rankine cycle is heated by solar-heated air and/or by the gas turbine's flue gases. The plant can be operated in solar-only, hybrid parallel or combined cycle-only mode as well as in any intermediate load levels where the solar portion can vary between 0 to 100%. The simulated plant is based on the configuration of a solar-hybrid power tower project, which is in planning for a site in Northern Algeria. The meteorological data for Barstow-Daggett was taken from the software meteonorm. The solar power tower simulation tool has been developed in the simulation environment MATLAB/Simulink and is validated. Amsterdam Elsevier 2014 9 Energy procedia : proceedings of the SolarPACES 2013 International Conference 49 1481 1490 10.1016/j.egypro.2014.03.157 weltweit https://doi.org/10.1016/j.egypro.2014.03.157 Solar-Institut Jülich OPUS4-9653 Konferenzveröffentlichung Sattler, Johannes Christoph, ; Chico Caminos, Ricardo Alexander, ; Atti, Vikrama Nagababu, vikrama.atti@sij.fh-aachen.de; Ürlings, Nicolas, ; Dutta, Siddharth, ; Ruiz, Victor, ; Kalogirou, Soteris, ; Ktistis, Panayiotis, ; Agathokleous, Rafaela, ; Alexopoulos, Spiros, alexopoulos@fh-aachen.de; Teixeira Boura, Cristiano José, ; Herrmann, Ulf, ulf.herrmann@sij.fh-aachen.de Dynamic simulation tool for a performance evaluation and sensitivity study of a parabolic trough collector system with concrete thermal energy storage Melville, NY American Institute of Physics 2020 6 Seiten AIP Conference Proceedings 2303 160004 10.1063/5.0029277 weltweit https://doi.org/10.1063/5.0029277 Solar-Institut Jülich OPUS4-6983 Konferenzveröffentlichung Kronhardt, Valentina, kronhardt@sij.fh-aachen.de; Alexopoulos, Spiros, alexopoulos@sij.fh-aachen.de; Reißel, Martin, reissel@fh-aachen.de; Latzke, Markus, latzke@sij.fh-aachen.de; Rendon, C., ; Sattler, Johannes, Christoph, sattler@sij.fh-aachen.de; Herrmann, Ulf, ulf.herrmann@sij.fh-aachen.de Simulation of operational management for the Solar Thermal Test and Demonstration Power Plant Jülich using optimized control strategies of the storage system 2015 5 Energy procedia 1 6 Solar-Institut Jülich OPUS4-7395 Konferenzveröffentlichung Latzke, Markus, latzke@sij.fh-aachen.de; Alexopoulos, Spiros, alexopoulos@sij.fh-aachen.de; Kronhardt, Valentina, kronhardt@sij.fh-aachen.de; Rendón, Carlos, rendon@sij.fh-aachen.de; Sattler, Johannes, Christoph, sattler@sij.fh-aachen.de Comparison of Potential Sites in China for Erecting a Hybrid Solar Tower Power Plant with Air Receiver 2015 7 Energy Procedia International Conference on Concentrating Solar Power and Chemical Energy Systems, SolarPACES 2014, Beijing, China 1327 1334 10.1016/j.egypro.2015.03.142 campus Fachbereich Energietechnik OPUS4-5675 Konferenzveröffentlichung Ahlbrink, N., ; Alexopoulos, Spiros, alexopoulos@sij.fh-aachen.de; Andersson, J., ; Belhomme, B., ; Teixeira Boura, Cristiano José, boura@sij.fh-aachen.de; Gall, J., ; Hirsch, T., viCERP - the Virtual Institute of Central Receiver Power Plant Amsterdam Elsevier 2009 MATHMOD 2009 - 6th Vienna International Conference on Mathematical Modelling : February 11 - 13, 2009, Vienna, Austria. ARGESIM Report. No. 35 978-3-901608-35-3 Solar-Institut Jülich OPUS4-6126 Wissenschaftlicher Artikel Kronhardt, Valentina, kronhardt@sij.fh-aachen.de; Alexopoulos, Spiros, alexopoulos@sij.fh-aachen.de; Reißel, Martin, reissel@fh-aachen.de; Sattler, Johannes, Christoph, sattler@sij.fh-aachen.de; Hoffschmidt, Bernhard, hoffschmidt@sij.fh-aachen.de; Hänel, Matthias, ; Doerbeck, Till, High-temperature thermal storage system for solar tower power plants with open-volumetric air receiver simulation and energy balancing of a discretized model This paper describes the modeling of a high-temperature storage system for an existing solar tower power plant with open volumetric receiver technology, which uses air as heat transfer medium (HTF). The storage system model has been developed in the simulation environment Matlab/Simulink®. The storage type under investigation is a packed bed thermal energy storage system which has the characteristics of a regenerator. Thermal energy can be stored and discharged as required via the HTF air. The air mass flow distribution is controlled by valves, and the mass flow by two blowers. The thermal storage operation strategy has a direct and significant impact on the energetic and economic efficiency of the solar tower power plants. Amsterdam Elsevier 2014 7 Energy procedia 49 870 877 10.1016/j.egypro.2014.03.094 weltweit https://doi.org/10.1016/j.egypro.2014.03.094 Solar-Institut Jülich OPUS4-9101 Konferenzveröffentlichung Sattler, Johannes, Christoph, sattler@sij.fh-aachen.de; Alexopoulos, Spiros, alexopoulos@sij.fh-aachen.de; Caminos, Ricardo Alexander Chico, chico-caminos@sij.fh-aachen.de; Mitchell, John C., ; Ruiz, Victor C., ; Kalogirou, Soteris, ; Ktistis, Panayiotis K., ; Teixeira Boura, Cristiano José, boura@sij.fh-aachen.de; Herrmann, Ulf, ulf.herrmann@sij.fh-aachen.de Dynamic simulation model of a parabolic trough collector system with concrete thermal energy storage for process steam generation 2019 NaN AIP Conference Proceedings 2126 150007-1 150007-8 10.1063/1.5117663 weltweit https://doi.org/10.1063/1.5117663 Fachbereich Energietechnik OPUS4-9100 Konferenzveröffentlichung May, Martin, may@sij.fh-aachen.de; Breitbach, Gerd, breitbach@fh-aachen.de; Alexopoulos, Spiros, alexopoulos@sij.fh-aachen.de; Latzke, Markus, latzke@sij.fh-aachen.de; Bäumer, Klaus, baeumer@sij.fh-aachen.de; Uhlig, Ralf, ; Söhn, Matthias, ; Teixeira Boura, Cristiano José, boura@sij.fh-aachen.de; Herrmann, Ulf, ulf.herrmann@sij.fh-aachen.de Experimental facility for investigations of wire mesh absorbers for pressurized gases 2019 NaN AIP Conference Proceedings 2126 030035-1 030035-9 10.1063/1.5117547 weltweit https://doi.org/10.1063/1.5117547 Fachbereich Energietechnik OPUS4-5720 Konferenzveröffentlichung Alexopoulos, Spiros, alexopoulos@sij.fh-aachen.de; Hoffschmidt, Bernhard, hoffschmidt@sij.fh-aachen.de; Rau, Christoph, rau@sij.fh-aachen.de; Sattler, Johannes, Christoph, sattler@sij.fh-aachen.de Choice of solar share of a hybrid power plant of a central receiver system and a biogas plant in dependency of the geographical latitude Linköping Univ. Electronic Pr. 2011 7 World Renewable Energy Congress-Sweden : 8 -13 May, 2011, Linköping, Sweden / ed.: Bahram Moshfegh 9789173930703 3710 3717 weltweit http://www.ep.liu.se/ecp/057/vol14/006/ecp57vol14_006.pdf Solar-Institut Jülich OPUS4-5712 Konferenzveröffentlichung Alexopoulos, Spiros, alexopoulos@sij.fh-aachen.de; Rau, Christoph, rau@sij.fh-aachen.de; Sattler, Johannes, Christoph, sattler@sij.fh-aachen.de; Kronhardt, Valentina, kronhardt@sij.fh-aachen.de; Hoffschmidt, Bernhard, hoffschmidt@sij.fh-aachen.de Simulation von Solarturmkraftwerken mit offenem volumetrischen Receiver am Standort Italien Köln DLR 2011 [143] Bl. Forschung und Entwicklung für solarthermische Kraftwerke : 14. Kölner Sonnenkolloquium Mittwoch, 13. Juli 2011, im Auditorium des Campus Jülich der FH Aachen : Kurzfassungen der Vorträge und Poster 4 S. weltweit http://www.dlr.de/sf/Portaldata/73/Resources/dokumente/Soko/Soko2011/14._Koelner_Sonnenkolloquium_KurzfassungVortraegePoster.pdf Solar-Institut Jülich OPUS4-9098 Konferenzveröffentlichung Breitbach, Gerd, breitbach@fh-aachen.de; Alexopoulos, Spiros, alexopoulos@sij.fh-aachen.de; May, Martin, may@sij.fh-aachen.de; Teixeira Boura, Cristiano José, boura@sij.fh-aachen.de; Herrmann, Ulf, ulf.herrmann@sij.fh-aachen.de Analysis of volumetric solar radiation absorbers made of wire meshes 2019 NaN AIP Conference Proceedings 2126 030009-1 030009-6 10.1063/1.5117521 weltweit https://doi.org/10.1063/1.5117521 Fachbereich Energietechnik OPUS4-9922 Teil eines Buches Hoffschmidt, Bernhard, hoffschmidt@sij.fh-aachen.de; Alexopoulos, Spiros, alexopoulos@sij.fh-aachen.de; Rau, Christoph, rau@sij.fh-aachen.de; Sattler, Johannes, Christoph, sattler@sij.fh-aachen.de; Anthrakidis, Anette, anthrakidis@sij.fh-aachen.de; Teixeira Boura, Cristiano José, boura@sij.fh-aachen.de; O'Connor, B., ; Chico Caminos, R.A., ; Rendón, C., ; Hilger, P., Concentrating solar power The focus of this chapter is the production of power and the use of the heat produced from concentrated solar thermal power (CSP) systems. The chapter starts with the general theoretical principles of concentrating systems including the description of the concentration ratio, the energy and mass balance. The power conversion systems is the main part where solar-only operation and the increase in operational hours. Solar-only operation include the use of steam turbines, gas turbines, organic Rankine cycles and solar dishes. The operational hours can be increased with hybridization and with storage. Another important topic is the cogeneration where solar cooling, desalination and of heat usage is described. Many examples of commercial CSP power plants as well as research facilities from the past as well as current installed and in operation are described in detail. The chapter closes with economic and environmental aspects and with the future potential of the development of CSP around the world. Amsterdam Elsevier 2022 54 Comprehensive Renewable Energy (Second Edition) / Volume 3: Solar Thermal Systems: Components and Applications 978-0-12-819734-9 670 724 bezahl https://doi.org/10.1016/B978-0-12-819727-1.00089-3 Fachbereich Energietechnik OPUS4-9487 Konferenzveröffentlichung Sattler, Johannes, Christoph, sattler@sij.fh-aachen.de; Caminos, Ricardo Alexander Chico, ; Ürlings, Nicolas, ; Dutta, Siddharth, ; Ruiz, Victor, ; Kalogirou, Soteris, ; Ktistis, Panayiotis, ; Agathokleous, Rafaela, ; Jung, Christian, ; Alexopoulos, Spiros, alexopoulos@sij.fh-aachen.de; Atti, Vikrama Nagababu, vikrama.atti@sij.fh-aachen.de; Teixeira Boura, Cristiano José, boura@sij.fh-aachen.de; Herrmann, Ulf, ulf.herrmann@sij.fh-aachen.de Operational experience and behaviour of a parabolic trough collector system with concrete thermal energy storage for process steam generation in Cyprus 2020 NaN AIP Conference Proceedings 2303 140004-1 140004-10 10.1063/5.0029278 campus https://doi.org/10.1063/5.0029278 Fachbereich Energietechnik OPUS4-5735 Teil eines Buches Hoffschmidt, Bernhard, hoffschmidt@sij.fh-aachen.de; Alexopoulos, Spiros, alexopoulos@sij.fh-aachen.de; Rau, Christoph, rau@sij.fh-aachen.de; Sattler, Johannes, Christoph, sattler@sij.fh-aachen.de; Anthrakidis, Anette, anthrakidis@sij.fh-aachen.de; Teixeira Boura, Cristiano José, boura@sij.fh-aachen.de; O'Connor, P., ; Hilger, Patrick, hilger@sij.fh-aachen.de Concentrating solar power Amsterdam Elsevier 2012 41 Comprehensive renewable energy / ed. Ali Sayigh. Vol. 3: Solar thermal systems: components and applications 3 978-0-08-087872-0 595 636 10.1016/B978-0-08-087872-0.00319-X bezahl http://www.sciencedirect.com/science/article/pii/B978008087872000319X Solar-Institut Jülich OPUS4-5716 Konferenzveröffentlichung Vaeßen, Christiane, vaessen@fh-aachen.de; Alexopoulos, Spiros, alexopoulos@sij.fh-aachen.de; Kluczka, Sven, kluczka@sij.fh-aachen.de; Sattler, Johannes Christoph, ; Roeb, M., ; Neises, M., ; Abdellatif, T., Analyse der Verfahren zur solaren Methanolproduktion aus CO2 Köln DLR 2011 [143] Bl. Forschung und Entwicklung für solarthermische Kraftwerke : 14. Kölner Sonnenkolloquium Mittwoch, 13. Juli 2011, im Auditorium des Campus Jülich der FH Aachen : Kurzfassungen der Vorträge und Poster 2 S. weltweit http://www.dlr.de/sf/Portaldata/73/Resources/dokumente/Soko/Soko2011/14._Koelner_Sonnenkolloquium_KurzfassungVortraegePoster.pdf Solar-Institut Jülich OPUS4-5700 Konferenzveröffentlichung Alexopoulos, Spiros, alexopoulos@sij.fh-aachen.de; Hoffschmidt, Bernhard, hoffschmidt@sij.fh-aachen.de; Rau, Christoph, rau@sij.fh-aachen.de; Sattler, Johannes, Christoph, sattler@sij.fh-aachen.de Simulation of hybrid solar tower power plants Red Hook, NY Curran 2012 S. 3412 - 4265 30th ISES Biennial Solar World Congress 2011 : Kassel, Germany, 28 August - 2 September 2011. Vol. 5 4044 4050 Solar-Institut Jülich OPUS4-9718 Teil eines Buches Hoffschmidt, Bernhard, ; Alexopoulos, Spiros, alexopoulos@sij.fh-aachen.de; Rau, Christoph, ; Sattler, Johannes, Christoph, sattler@sij.fh-aachen.de; Anthrakidis, Anette, anthrakidis@sij.fh-aachen.de; Teixeira Boura, Cristiano José, boura@sij.fh-aachen.de; O'Connor, B., ; Caminos, R.A. Chico, ; Rendón, C., ; Hilger, P., Concentrating Solar Power The focus of this chapter is the production of power and the use of the heat produced from concentrated solar thermal power (CSP) systems. The chapter starts with the general theoretical principles of concentrating systems including the description of the concentration ratio, the energy and mass balance. The power conversion systems is the main part where solar-only operation and the increase in operational hours. Solar-only operation include the use of steam turbines, gas turbines, organic Rankine cycles and solar dishes. The operational hours can be increased with hybridization and with storage. Another important topic is the cogeneration where solar cooling, desalination and of heat usage is described. Many examples of commercial CSP power plants as well as research facilities from the past as well as current installed and in operation are described in detail. The chapter closes with economic and environmental aspects and with the future potential of the development of CSP around the world. Amsterdam Elsevier 2021 Earth systems and environmental sciences 978-0-12-409548-9 10.1016/B978-0-12-819727-1.00089-3 bezahl https://doi.org/10.1016/B978-0-12-819727-1.00089-3 Fachbereich Energietechnik OPUS4-8900 Wissenschaftlicher Artikel Puppe, Michael, ; Giuliano, Stefano, ; Frantz, Cathy, ; Uhlig, Ralf, ; Schumacher, Ralph, ; Ibraheem, Wagdi, ; Schmalz, Stefan, ; Waldmann, Barbara, ; Guder, Christoph, ; Peter, Dennis, ; Schwager, Christian, schwager@sij.fh-aachen.de; Teixeira Boura, Cristiano José, boura@sij.fh-aachen.de; Alexopoulos, Spiros, alexopoulos@sij.fh-aachen.de; Spiegel, Michael, ; Wortmann, Jürgen, ; Hinrichs, Matthias, ; Engelhard, Manfred, ; Aust, Michael, Techno-economic optimization of molten salt solar tower plants In this paper the results of a techno-economic analysis of improved and optimized molten salt solar tower plants (MSSTP plants) are presented. The potential improvements that were analyzed include different receiver designs, different designs of the HTF-system and plant control, increased molten salt temperatures (up to 640°C) and multi-tower systems. Detailed technological and economic models of the solar field, solar receiver and high temperature fluid system (HTF-system) were developed and used to find potential improvements compared to a reference plant based on Solar Two technology and up-to-date cost estimations. The annual yield model calculates the annual outputs and the LCOE of all variants. An improved external tubular receiver and improved HTF-system achieves a significant decrease of LCOE compared to the reference. This is caused by lower receiver cost as well as improvements of the HTF-system and plant operation strategy, significantly reducing the plant own consumption. A novel star receiver shows potential for further cost decrease. The cavity receiver concepts result in higher LCOE due to their high investment cost, despite achieving higher efficiencies. Increased molten salt temperatures seem possible with an adapted, closed loop HTF-system and achieve comparable results to the original improved system (with 565°C) under the given boundary conditions. In this analysis all multi tower systems show lower economic viability compared to single tower systems, caused by high additional cost for piping connections and higher cost of the receivers. REFERENCES Melville, NY AIP Publishing 2018 AIP Conference Proceedings art.no. 040033 2033 Issue 1 10.1063/1.5067069 weltweit https://doi.org/10.1063/1.5067069 Solar-Institut Jülich OPUS4-8989 Konferenzveröffentlichung Schwager, Christian, schwager@sij.fh-aachen.de; Teixeira Boura, Cristiano José, boura@sij.fh-aachen.de; Flesch, Robert, ; Alexopoulos, Spiros, alexopoulos@sij.fh-aachen.de; Herrmann, Ulf, ulf.hermann@sij.fh-aachen.de Improved efficiency prediction of a molten salt receiver based on dynamic cloud passage simulation 2019 NaN AIP Conference Proceedings 2126 978-0-7354-1866-0 1 030054-1 030054-8 10.1063/1.5117566 campus https://doi.org/10.1063/1.5117566 Solar-Institut Jülich OPUS4-11063 Konferenzveröffentlichung Sattler, Johannes Christoph, sattler@sij.fh-aachen.de; Atti, Vikrama, ; Alexopoulos, Spiros, alexopoulos@sij.fh-aachen.de; Teixeira Boura, Cristiano José, Boura@sij.fh-aachen.de; Herrmann, Ulf, ulf.herrmann@sij.fh-aachen.de; Dutta, Siddharth, ; Kioutsioukis, Ioannis, DNI forecast tool for the smart operation of a parabolic trough collector system with concrete thermal energy storage: Theory, results and outlook This work presents a basic forecast tool for predicting direct normal irradiance (DNI) in hourly resolution, which the Solar-Institut Jülich (SIJ) is developing within a research project. The DNI forecast data shall be used for a parabolic trough collector (PTC) system with a concrete thermal energy storage (C-TES) located at the company KEAN Soft Drinks Ltd in Limassol, Cyprus. On a daily basis, 24-hour DNI prediction data in hourly resolution shall be automatically produced using free or very low-cost weather forecast data as input. The purpose of the DNI forecast tool is to automatically transfer the DNI forecast data on a daily basis to a main control unit (MCU). The MCU automatically makes a smart decision on the operation mode of the PTC system such as steam production mode and/or C-TES charging mode. The DNI forecast tool was evaluated using historical data of measured DNI from an on-site weather station, which was compared to the DNI forecast data. The DNI forecast tool was tested using data from 56 days between January and March 2022, which included days with a strong variation in DNI due to cloud passages. For the evaluation of the DNI forecast reliability, three categories were created and the forecast data was sorted accordingly. The result was that the DNI forecast tool has a reliability of 71.4 % based on the tested days. The result fulfils SIJ's aim to achieve a reliability of around 70 %, but SIJ aims to still improve the DNI forecast quality. Hannover TIB Open Publishing 2022 9 Seiten SolarPACES conference proceedings 28th International Conference on Concentrating Solar Power and Chemical Energy Systems, 27-30 September, Albuquerque, NM, USA VOL. 1 10.52825/solarpaces.v1i.731 https://doi.org/10.52825/solarpaces.v1i.731 Fachbereich Energietechnik