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 OPUS4-4447 Wissenschaftlicher Artikel Alexopoulos, Spiros, alexopoulos@sij.fh-aachen.de; Hoffschmidt, Bernhard, hoffschmidt@sij.fh-aachen.de Solarthermische Kraftwerke mit thermischen Speichern 2010 0 Chemie Ingenieur Technik. 82 (2010), H. 9 1522-2640 Special Issue: ProcessNet-Jahrestagung 2010 und 28. Jahrestagung der Biotechnologen V9.01 [Abstract des Vortrags] 1606 1606 campus http://dx.doi.org/10.1002/cite.201050678 Fachbereich Energietechnik OPUS4-3997 Wissenschaftlicher Artikel Alexopoulos, Spiros, alexopoulos@sij.fh-aachen.de; Hoffschmidt, Bernhard, hoffschmidt@sij.fh-aachen.de Solar tower power plant in Germany and future perspectives of the development of the technology in Greece and Cyprus 2010 4 Renewable Energy . 35 (2010), H. 7 0960-1481 1352 1356 campus http://dx.doi.org/10.1016/j.renene.2009.11.003 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 OPUS4-3794 Wissenschaftlicher Artikel Alexopoulos, Spiros, alexopoulos@sij.fh-aachen.de; Breitbach, Gerd, breitbach@fh-aachen.de; Hoffschmidt, Bernhard, hoffschmidt@sij.fh-aachen.de; Stobbe, P., Optimization of the geometry of porous SiC ceramic filtering modules using numerical methods Hoboken, NJ Wiley 2008 XII, 384 S. : Ill., graph. Darst. Developments in porous, biological and geopolymer ceramics : a collection of papers presented at the 31st International Conference on Advanced Ceramics and Composites, January 21 - 26, 2007, Daytona Beach, Florida ; [papers presented at the Symposium on Porous Ceramics: Novel Developments and Applications] / ed.: Manuel Brito ... Vol. ed.: Jonathan Salem ... The American Ceramics Society 9780470196403 Ceramic engineering and science proceedings ; 28,9 95 104 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 OPUS4-9485 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 OPUS4-9100 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 OPUS4-9101 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 OPUS4-11063 Konferenzveröffentlichung Sattler, Johannes Christoph, sattler@sij.fh-aachen.de; Atti, Vikrama, ; Alexopoulos, Spiros, alexopoulos@sij.fh-aachen.de; Teixeira Boura, Cristiano José, Boura@sij.fh-aachen.de; Herrmann, Ulf, ulf.herrmann@sij.fh-aachen.de; Dutta, Siddharth, ; Kioutsioukis, Ioannis, DNI forecast tool for the smart operation of a parabolic trough collector system with concrete thermal energy storage: Theory, results and outlook This work presents a basic forecast tool for predicting direct normal irradiance (DNI) in hourly resolution, which the Solar-Institut Jülich (SIJ) is developing within a research project. The DNI forecast data shall be used for a parabolic trough collector (PTC) system with a concrete thermal energy storage (C-TES) located at the company KEAN Soft Drinks Ltd in Limassol, Cyprus. On a daily basis, 24-hour DNI prediction data in hourly resolution shall be automatically produced using free or very low-cost weather forecast data as input. The purpose of the DNI forecast tool is to automatically transfer the DNI forecast data on a daily basis to a main control unit (MCU). The MCU automatically makes a smart decision on the operation mode of the PTC system such as steam production mode and/or C-TES charging mode. The DNI forecast tool was evaluated using historical data of measured DNI from an on-site weather station, which was compared to the DNI forecast data. The DNI forecast tool was tested using data from 56 days between January and March 2022, which included days with a strong variation in DNI due to cloud passages. For the evaluation of the DNI forecast reliability, three categories were created and the forecast data was sorted accordingly. The result was that the DNI forecast tool has a reliability of 71.4 % based on the tested days. The result fulfils SIJ's aim to achieve a reliability of around 70 %, but SIJ aims to still improve the DNI forecast quality. Hannover TIB Open Publishing 2022 9 Seiten SolarPACES conference proceedings 28th International Conference on Concentrating Solar Power and Chemical Energy Systems, 27-30 September, Albuquerque, NM, USA VOL. 1 10.52825/solarpaces.v1i.731 https://doi.org/10.52825/solarpaces.v1i.731 Fachbereich Energietechnik OPUS4-9922 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 OPUS4-9718 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 OPUS4-3788 Wissenschaftlicher Artikel Alexopoulos, Spiros, alexopoulos@sij.fh-aachen.de; Breitbach, Gerd, breitbach@fh-aachen.de; Hoffschmidt, Bernhard, hoffschmidt@sij.fh-aachen.de; Stobbe, P., Computational fluid flow of porous resic ceramic filtering modules and optimization of the channel edge form geometry Meerbusch Filtech Exhibitions 2008 4 Proceedings : April 14 - 18, 2008, Leipzig, Germany / hosted by VDI, Society for Chemical and Process Engineering . Vol 2 Verein Deutscher Ingenieure ; World Filtration Congress ; (10 : ; 2008.04.14-18 : ; Leipzig) ; WFC ; (10 : ; 2008.04.14-18 : ; Leipzig) 300 304 Fachbereich Energietechnik 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 OPUS4-9098 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 OPUS4-7933 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