TY - JOUR A1 - Göttsche, Joachim T1 - Eldorado summer schools JF - Progress in solar energy education. 3 (1994) Y1 - 1994 SN - 1018-5607 SP - 31 EP - 33 ER - TY - JOUR A1 - Göttsche, Joachim A1 - Schwarzer, Klemens A1 - Röther, S. A1 - Jellinghaus, Sabine T1 - Efficient daylighting, heating and shading with rooflight heliostats JF - Conference Internationale Energie Solaire et Batiment Y1 - 2009 SP - 243 EP - 248 PB - EPFL CY - Lausanne ER - TY - JOUR A1 - Herrmann, Ulf A1 - Nava, P. T1 - Die Strahlung der Sonne einfangen JF - DLR-Nachrichten / Deutsches Zentrum für Luft- und Raumfahrt Y1 - 2005 SN - 0937-0420 VL - 109 IS - Sonderheft Solarforschung SP - 34 EP - 37 ER - TY - JOUR A1 - Stein, H. A1 - Meliß, Michael T1 - Die Bedeutung der Sonnenenergie für die zukünftige Energieversorgung der Bundesrepublik Deutschland JF - Din-Mitteilungen + Elektronorm. Bd. 59 (1980), H. 8 Y1 - 1980 SN - 0722-2912 SP - 434 EP - 440 ER - TY - JOUR A1 - Göttsche, Joachim T1 - Der vertikale Sonnenlichtquotient : Eine wichtige Kenngröße zur Charakterisierung von Lichtlenksystemen / Göttsche, Joachim JF - Elftes Symposium Innovative Lichttechnik in Gebäuden : 27./28. Januar 2005, [Kloster Banz] / OTTI-Kolleg Beratung, Projekte Y1 - 2005 SN - 3934681379 N1 - Symposium Innovative Lichttechnik in Gebäuden ; (11, 2005, Kloster Banz) SP - 79 EP - 84 PB - Ostbayerisches Technologie-Transfer-Inst., OTTI CY - Regensburg ER - TY - JOUR A1 - Kroker, J. A1 - Faber, Christian A1 - Trinkl, C. A1 - Zörner, W. T1 - Der Garten bleibt - solares Heizen mit Wärmepumpe und Latentwärmespeicher verzichtet auf großflächige Erdwärmetauscher JF - Erneuerbare Energien : das Magazin. 18 (2008), H. 8 Y1 - 2008 SN - 1436-8773 SP - 46 EP - 49 ER - TY - JOUR A1 - Meliß, Michael A1 - Sandtner, W. T1 - Der Forschungsstand bei den regenerativen Energiequellen JF - Energiewirtschaftliche Tagesfragen. Jg. 46 (1996), H. 1/2 Y1 - 1996 SN - 0720-6240 SP - 14 EP - 23 ER - TY - JOUR A1 - Wolisz, Henryk A1 - Schütz, Thomas A1 - Blanke, Tobias A1 - Hagenkamp, Markus A1 - Kohrn, Markus A1 - Wesseling, Mark A1 - Müller, Dirk T1 - Cost optimal sizing of smart buildings' energy system components considering changing end-consumer electricity markets JF - Energy Y1 - 2017 U6 - https://doi.org/10.1016/j.energy.2017.06.025 VL - 137 SP - 715 EP - 728 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Meliß, Michael A1 - Selzer, H. A1 - Ziesing, H. J. T1 - CO2-Reduktionspotentiale erneuerbarer Energiequellen JF - Energiewirtschaftliche Tagesfragen. Jg. 41 (1991), H. 5 Y1 - 1991 SN - 0013-743X ; 0720-6240 SP - 291 EP - 299 ER - TY - JOUR A1 - Alexopoulos, Spiros T1 - Biogas systems: basics, biogas multifunction, principle of fermentation and hybrid application with a solar tower for the treatment of waste animal manure JF - Journal of Engineering Science and Technology Review N2 - 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 Y1 - 2012 SN - 1791-2377 N1 - Special Issue on Renewable Energy Systems VL - 5 IS - 4 SP - 48 EP - 55 ER -