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 OPUS4-3788 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 OPUS4-3794 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 OPUS4-3997 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 OPUS4-4447 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 OPUS4-4483 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