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 OPUS4-5675 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 OPUS4-5089 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 OPUS4-6396 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 OPUS4-7073 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 OPUS4-5691 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 OPUS4-3788 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 OPUS4-7933 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