@article{RauAlexopoulosBreitbachetal.2014,
  author    = {Rau, Christoph and Alexopoulos, Spiros and Breitbach, Gerd and Hoffschmidt, Bernhard and Latzke, Markus and Sattler, Johannes, Christoph},
  title     = {Transient simulation of a solar-hybrid tower power plant with open volumetric receiver at the location Barstow},
  series = {Energy procedia : proceedings of the SolarPACES 2013 International Conference},
  volume    = {49},
  journal   = {Energy procedia : proceedings of the SolarPACES 2013 International Conference},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {1876-6102},
  doi       = {10.1016/j.egypro.2014.03.157},
  pages     = {1481 -- 1490},
  year      = {2014},
  abstract  = {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.},
  language  = {en}
}
@article{KluczkaEcksteinAlexopoulosetal.2014,
  author    = {Kluczka, Sven and Eckstein, Julian and Alexopoulos, Spiros and Vaeßen, Christiane and Roeb, Martin},
  title     = {Process simulation for solar steam and dry reforming},
  series = {Energy procedia : Proceedings of the SolarPACES 2013 International Conference},
  volume    = {49},
  journal   = {Energy procedia : Proceedings of the SolarPACES 2013 International Conference},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {1876-6102 (E-Journal)},
  doi       = {10.1016/j.egypro.2014.03.092},
  pages     = {850 -- 859},
  year      = {2014},
  abstract  = {In co-operation with the German Aerospace Center, the Solar-Institut J{\"u}lich 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.},
  language  = {en}
}
@article{VieiradaSilvaSchwarzerHoffschmidtetal.2013,
  author    = {Vieira da Silva, Maria Eugenia and Schwarzer, Klemens and Hoffschmidt, Bernhard and Pinheiro Rodrigues, Frederico and Schwarzer, Tarik and Costa Rocha, Paulo Alexandre},
  title     = {Mass transfer correlation for evaporation-condensation thermal process in the range of 70 °C-95 °C},
  series = {Renewable energy},
  volume    = {Vol. 53},
  journal   = {Renewable energy},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {1879-0682 (E-Journal); 0960-1481 (Print)},
  pages     = {174 -- 179},
  year      = {2013},
  language  = {en}
}
@article{Alexopoulos2012,
  author    = {Alexopoulos, Spiros},
  title     = {Biogas systems: basics, biogas multifunction, principle of fermentation and hybrid application with a solar tower for the treatment of waste animal manure},
  series = {Journal of Engineering Science and Technology Review},
  volume    = {5},
  journal   = {Journal of Engineering Science and Technology Review},
  number    = {4},
  issn      = {1791-2377},
  pages     = {48 -- 55},
  year      = {2012},
  abstract  = {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},
  language  = {en}
}
@article{ReisgenSchleserAbdurakhmanovetal.2012,
  author    = {Reisgen, Uwe and Schleser, Markus and Abdurakhmanov, Aydemir and Turichin, Gleb and Valdaitseva, Elena and Bach, Friedrich-Wilhelm and Hassel, Thomas and Beniyashi, Alexander},
  title     = {Investigation of factors influencing the formation of weld defects in non-vacuum electron beam welding},
  series = {The Paton welding journal},
  volume    = {2012},
  journal   = {The Paton welding journal},
  number    = {2},
  publisher = {Paton Publishing House},
  address   = {Kiev},
  issn      = {0957-798X},
  pages     = {11 -- 18},
  year      = {2012},
  abstract  = {The influence of welding condition parameters and properties of material on formation of defects, such as humping and undercuts, in non-vacuum electron beam welding was investigated. The influence of separate welding parameters on the quality of welds was determined.},
  language  = {en}
}
@article{SchwarzerVieiradaSilvaSchwarzer2011,
  author    = {Schwarzer, Klemens and Vieira da Silva, Maria Eugenia and Schwarzer, Tarik},
  title     = {Field results in Namibia and Brazil of the new solar desalination system for decentralised drinking water production},
  series = {Desalination and water treatment. Vol. 31 (2011), iss. 1-3: selected papers presented at EuroMed 2010 — Desalination for Clean Water and Energy: Cooperation among Mediterranean Countries of Europe and MENA Region, 3-7 October 2010, Tel Aviv, Israel},
  journal   = {Desalination and water treatment. Vol. 31 (2011), iss. 1-3: selected papers presented at EuroMed 2010 — Desalination for Clean Water and Energy: Cooperation among Mediterranean Countries of Europe and MENA Region, 3-7 October 2010, Tel Aviv, Israel},
  pages     = {379 -- 386},
  year      = {2011},
  language  = {en}
}
@article{GoettscheHoffschmidtSchmitzetal.2010,
  author    = {G{\"o}ttsche, Joachim and Hoffschmidt, Bernhard and Schmitz, Stefan and Sauerborn, Markus},
  title     = {Solar Concentrating Systems Using Small Mirror Arrays},
  series = {Journal of solar energy engineering},
  volume    = {Vol. 132},
  journal   = {Journal of solar energy engineering},
  number    = {Iss. 1},
  isbn      = {0199-6231},
  pages     = {4 S.},
  year      = {2010},
  language  = {en}
}
@article{GoettscheHoffschmidtSchmitzetal.2009,
  author    = {G{\"o}ttsche, Joachim and Hoffschmidt, Bernhard and Schmitz, Stefan and Sauerborn, Markus},
  title     = {Solar Concentrating Systems Using Small Mirror Arrays / G{\"o}ttsche, Joachim ; Hoffschmidt, Bernhard ; Schmitz, Stefan ; Sauerborn, Markus ; Buck, Reiner ; Teufel, Edgar ; Badst{\"u}bner, Karin ; Ifland, David ; Rebholz, Christian},
  series = {Proceedings of the 2nd International Conference on Energy Sustainability - 2008 : : presented ... August 10 - 14, 2008, Jacksonville, Florida, USA / sponsored by Advanced Energy Systems Division, ASME; Solar Energy Division, ASME},
  journal   = {Proceedings of the 2nd International Conference on Energy Sustainability - 2008 : : presented ... August 10 - 14, 2008, Jacksonville, Florida, USA / sponsored by Advanced Energy Systems Division, ASME; Solar Energy Division, ASME},
  publisher = {ASME},
  address   = {New York, NY},
  isbn      = {9780791843208},
  pages     = {1 -- 5},
  year      = {2009},
  language  = {en}
}
@article{GoettscheSchwarzerRoetheretal.2009,
  author    = {G{\"o}ttsche, Joachim and Schwarzer, Klemens and R{\"o}ther, S. and Jellinghaus, Sabine},
  title     = {Efficient daylighting, heating and shading with rooflight heliostats},
  series = {Conference Internationale Energie Solaire et Batiment},
  journal   = {Conference Internationale Energie Solaire et Batiment},
  publisher = {EPFL},
  address   = {Lausanne},
  pages     = {243 -- 248},
  year      = {2009},
  language  = {en}
}
@article{KollSchwarzboezlHenneckeetal.2009,
  author    = {Koll, G. and Schwarzb{\"o}zl, P. and Hennecke, K. and Hoffschmidt, Bernhard and Hartz, T.},
  title     = {Geb{\"u}ndelte Kraft: das solarthermische Versuchskraftwerk J{\"u}lich},
  series = {BWK : das Energie-Fachmagazin / Hrsg.: Verein Deutscher Ingenieure. Jg. 61 (2009), Nr. 9},
  journal   = {BWK : das Energie-Fachmagazin / Hrsg.: Verein Deutscher Ingenieure. Jg. 61 (2009), Nr. 9},
  publisher = {Springer-VDI-Verlag},
  address   = {D{\"u}sseldorf},
  issn      = {0006-9612},
  pages     = {60 -- 62},
  year      = {2009},
  language  = {de}
}
@article{GoettscheHoffschmidtAlexopoulosetal.2008,
  author    = {G{\"o}ttsche, Joachim and Hoffschmidt, Bernhard and Alexopoulos, Spiros and Funke, J. and Schwarzb{\"o}zl, P.},
  title     = {First Simulation Results for the Hybridization of Small Solar Power Tower Plants},
  series = {EuroSun 2008 : 1st International Conference on Solar Heating, Cooling and Buildings, 2008-10-07 - 2008-10-10, Lissabon (Portugal). Vol. 1},
  journal   = {EuroSun 2008 : 1st International Conference on Solar Heating, Cooling and Buildings, 2008-10-07 - 2008-10-10, Lissabon (Portugal). Vol. 1},
  publisher = {Sociedade Portuguesa De Energia Solar (SPES)},
  address   = {Lisbon},
  isbn      = {978-1-61782-228-5},
  pages     = {1299 -- 1306},
  year      = {2008},
  language  = {en}
}
@article{KrokerFaberTrinkletal.2008,
  author    = {Kroker, J. and Faber, Christian and Trinkl, C. and Z{\"o}rner, W.},
  title     = {Der Garten bleibt - solares Heizen mit W{\"a}rmepumpe und Latentw{\"a}rmespeicher verzichtet auf großfl{\"a}chige Erdw{\"a}rmetauscher},
  series = {Erneuerbare Energien : das Magazin. 18 (2008), H. 8},
  journal   = {Erneuerbare Energien : das Magazin. 18 (2008), H. 8},
  issn      = {1436-8773},
  pages     = {46 -- 49},
  year      = {2008},
  language  = {de}
}
@article{HenneckeSchwarzboezlHoffschmidtetal.2007,
  author    = {Hennecke, Klaus and Schwarzb{\"o}zl, Peter and Hoffschmidt, Bernhard and G{\"o}ttsche, Joachim and Koll, G. and Beuter, M. and Hartz, T.},
  title     = {The solar power tower J{\"u}lich - a solar thermal power plant for test and demonstration of air receiver},
  series = {Solar energy and human settlement : Elektronische Ressource : proceedings of ISES world congress 2007 ; (Vol. I - Vol. V) / [ISES Solar World Congress. ISES, International Solar Energy Society]. D. Yogi Goswami ; Yuwen Zhao},
  journal   = {Solar energy and human settlement : Elektronische Ressource : proceedings of ISES world congress 2007 ; (Vol. I - Vol. V) / [ISES Solar World Congress. ISES, International Solar Energy Society]. D. Yogi Goswami ; Yuwen Zhao},
  publisher = {Tsinghua Univ. Press},
  address   = {Beijing},
  isbn      = {978-7-302-16146-2},
  pages     = {1749 -- 1753},
  year      = {2007},
  language  = {en}
}
@article{AgrafiotisMavroidisKonstandopoulosetal.2007,
  author    = {Agrafiotis, Christos C. and Mavroidis, Ilias and Konstandopoulos, Athansios G. and Hoffschmidt, Bernhard and Stobbe, Per and Romero, Manuel and Fernandez-Quero, Valerio},
  title     = {Evaluation of porous silicon carbide monolithic honeycombs as volumetric receivers/collectors of concentrated solar radiation},
  series = {Solar energy materials and solar cells},
  volume    = {Vol. 91},
  journal   = {Solar energy materials and solar cells},
  number    = {Iss. 6},
  issn      = {1879-3398 (E-Journal); 0927-0248 (Print)},
  pages     = {474 -- 488},
  year      = {2007},
  language  = {en}
}
@article{GoettscheGabryschSchilleretal.2006,
  author    = {G{\"o}ttsche, Joachim and Gabrysch, K. and Schiller, H. and Schwarzer, Klemens},
  title     = {Energetische Sanierung eines biochemischen Laborgeb{\"a}udes : Auswirkung bedarfsabh{\"a}ngiger L{\"u}ftung mit W{\"a}rmer{\"u}ckgewinnung auf den Prim{\"a}renergieverbrauch},
  series = {Heizungs- und Raumlufttechnik : 1. Fachtagung Leonberg, 31. Januar bis 1. Februar 2006 / VDI-Tage der Geb{\"a}udetechnik. VDI-Gesellschaft Technische Geb{\"a}udeausr{\"u}stung},
  journal   = {Heizungs- und Raumlufttechnik : 1. Fachtagung Leonberg, 31. Januar bis 1. Februar 2006 / VDI-Tage der Geb{\"a}udetechnik. VDI-Gesellschaft Technische Geb{\"a}udeausr{\"u}stung},
  publisher = {VDI-Verl.},
  address   = {D{\"u}sseldorf},
  isbn      = {3-18-091921-3},
  pages     = {221 -- 230},
  year      = {2006},
  language  = {de}
}
@article{Goettsche2005,
  author    = {G{\"o}ttsche, Joachim},
  title     = {Der vertikale Sonnenlichtquotient : Eine wichtige Kenngr{\"o}ße zur Charakterisierung von Lichtlenksystemen / G{\"o}ttsche, Joachim},
  series = {Elftes Symposium Innovative Lichttechnik in Geb{\"a}uden : 27./28. Januar 2005, [Kloster Banz] / OTTI-Kolleg Beratung, Projekte},
  journal   = {Elftes Symposium Innovative Lichttechnik in Geb{\"a}uden : 27./28. Januar 2005, [Kloster Banz] / OTTI-Kolleg Beratung, Projekte},
  publisher = {Ostbayerisches Technologie-Transfer-Inst., OTTI},
  address   = {Regensburg},
  isbn      = {3934681379},
  pages     = {79 -- 84},
  year      = {2005},
  language  = {de}
}
@article{RussGoettsche2005,
  author    = {Russ, Christel and G{\"o}ttsche, Joachim},
  title     = {Energieversorgung in Niedrigstenergie-Wohngeb{\"a}uden},
  series = {W{\"a}rme und K{\"a}lte - Energie aus Sonne und Erde : Jahrestagung des Forschungsverbunds Sonnenenergie in Kooperation mit der Landesinitiative Zukunftsenergien NRW, 22.-23.09.2005 in K{\"o}ln / [Hrsg.: Gerd Stadermann]},
  journal   = {W{\"a}rme und K{\"a}lte - Energie aus Sonne und Erde : Jahrestagung des Forschungsverbunds Sonnenenergie in Kooperation mit der Landesinitiative Zukunftsenergien NRW, 22.-23.09.2005 in K{\"o}ln / [Hrsg.: Gerd Stadermann]},
  publisher = {FVS},
  address   = {Berlin},
  pages     = {93 -- 98},
  year      = {2005},
  language  = {de}
}
@article{GoettscheRuss2005,
  author    = {G{\"o}ttsche, Joachim and Russ, Christel},
  title     = {Energieversorgung in Niedrigstenergie-Neubauwohnungen / Christel Russ ; Joachim G{\"o}ttsche},
  series = {W{\"a}rme und K{\"a}lte - Energie aus Sonne und Erde : Jahrestagung des Forschungsverbunds Sonnenenergie in Kooperation mit der Landesinitiative Zukunftsenergie NRW / Stadermann, Gerd, Hrsg.},
  journal   = {W{\"a}rme und K{\"a}lte - Energie aus Sonne und Erde : Jahrestagung des Forschungsverbunds Sonnenenergie in Kooperation mit der Landesinitiative Zukunftsenergie NRW / Stadermann, Gerd, Hrsg.},
  publisher = {Forschungsverbund Sonnenenergie},
  address   = {Berlin},
  pages     = {93 -- 98},
  year      = {2005},
  language  = {de}
}
@article{GoettscheHoffschmidtBoehnischetal.2005,
  author    = {G{\"o}ttsche, Joachim and Hoffschmidt, Bernhard and B{\"o}hnisch, Helmut and Herkel, Sebastian},
  title     = {Solarisierung von Altbauten / Bernhard Hoffschmidt ; Helmut B{\"o}hnisch ; Joachim G{\"o}ttsche ; Sebastian Herkel},
  series = {W{\"a}rme und K{\"a}lte - Energie aus Sonne und Erde : Jahrestagung des Forschungsverbunds Sonnenenergie in Kooperation mit der Landesinitiative Zukunftsenergie NRW / Stadermann, Gerd, Hrsg.},
  journal   = {W{\"a}rme und K{\"a}lte - Energie aus Sonne und Erde : Jahrestagung des Forschungsverbunds Sonnenenergie in Kooperation mit der Landesinitiative Zukunftsenergie NRW / Stadermann, Gerd, Hrsg.},
  publisher = {Forschungsverbund Sonnenenergie},
  address   = {Berlin},
  pages     = {99 -- 105},
  year      = {2005},
  language  = {de}
}
@article{SchossigDoetschDruecketal.2005,
  author    = {Schossig, Peter and D{\"o}tsch, Christian and Dr{\"u}ck, Harald and G{\"o}ttsche, Joachim and Huenges, Ernst and Kabus, Frank and Tamme, Rainer},
  title     = {W{\"a}rmespeicher f{\"u}r die Hausenergieversorgung},
  series = {W{\"a}rme und K{\"a}lte - Energie aus Sonne und Erde : Jahrestagung des Forschungsverbunds Sonnenenergie in Kooperation mit der Landesinitiative Zukunftsenergie NRW / Stadermann, Gerd, Hrsg.},
  journal   = {W{\"a}rme und K{\"a}lte - Energie aus Sonne und Erde : Jahrestagung des Forschungsverbunds Sonnenenergie in Kooperation mit der Landesinitiative Zukunftsenergie NRW / Stadermann, Gerd, Hrsg.},
  publisher = {Forschungsverbund Sonnenenergie},
  address   = {Berlin},
  pages     = {120 -- 125},
  year      = {2005},
  language  = {de}
}