@article{GoettscheGoetzbergerDengleretal.1992,
  author    = {G{\"o}ttsche, Joachim and Goetzberger, Adolf and Dengler, J. and Rommel, M. (u.a.)},
  title     = {A new transparently insulated, bifacially irradiated solar flat-plate collector / A. Goetzberger ; J. Dengler ; M. Rommel ; J. G{\"o}ttsche ; V. Wittwer},
  series = {Solar energy. 49 (1992), H. 5},
  journal   = {Solar energy. 49 (1992), H. 5},
  isbn      = {0038-092X},
  pages     = {403 -- 411},
  year      = {1992},
  language  = {en}
}
@article{SchwagerFleschSchwarzboezletal.2022,
  author    = {Schwager, Christian and Flesch, Robert and Schwarzb{\"o}zl, Peter and Herrmann, Ulf and Teixeira Boura, Cristiano Jos{\´e}},
  title     = {Advanced two phase flow model for transient molten salt receiver system simulation},
  series = {Solar Energy},
  volume    = {232},
  journal   = {Solar Energy},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {0038-092X (print)},
  doi       = {10.1016/j.solener.2021.12.065},
  pages     = {362 -- 375},
  year      = {2022},
  abstract  = {In order to realistically predict and optimize the actual performance of a concentrating solar power (CSP) plant sophisticated simulation models and methods are required. This paper presents a detailed dynamic simulation model for a Molten Salt Solar Tower (MST) system, which is capable of simulating transient operation including detailed startup and shutdown procedures including drainage and refill. For appropriate representation of the transient behavior of the receiver as well as replication of local bulk and surface temperatures a discretized receiver model based on a novel homogeneous two-phase (2P) flow modelling approach is implemented in Modelica Dymola®. This allows for reasonable representation of the very different hydraulic and thermal properties of molten salt versus air as well as the transition between both. This dynamic 2P receiver model is embedded in a comprehensive one-dimensional model of a commercial scale MST system and coupled with a transient receiver flux density distribution from raytracing based heliostat field simulation. This enables for detailed process prediction with reasonable computational effort, while providing data such as local salt film and wall temperatures, realistic control behavior as well as net performance of the overall system. Besides a model description, this paper presents some results of a validation as well as the simulation of a complete startup procedure. Finally, a study on numerical simulation performance and grid dependencies is presented and discussed.},
  language  = {en}
}
@article{GoettscheReillyWittwer1991,
  author    = {G{\"o}ttsche, Joachim and Reilly, S. and Wittwer, Volker},
  title     = {Advanced window systems and building energy performance / S. Reilly ; J. G{\"o}ttsche ; V. Wittwer},
  series = {Solar World Congress, 1991 : proceedings of the biennial congress of the International Solar Energy Society, Denver, Colorado, USA, 19-23 August 1991 / ed. by M. E. Arden ...},
  journal   = {Solar World Congress, 1991 : proceedings of the biennial congress of the International Solar Energy Society, Denver, Colorado, USA, 19-23 August 1991 / ed. by M. E. Arden ...},
  publisher = {Pergamon Press},
  address   = {Oxford [u.a.]},
  isbn      = {0-08-041690-X},
  pages     = {3211 -- 3216},
  year      = {1991},
  language  = {en}
}
@article{AlexopoulosHoffschmidt2017,
  author    = {Alexopoulos, Spiros and Hoffschmidt, Bernhard},
  title     = {Advances in solar tower technology},
  series = {Wiley interdisciplinary reviews : Energy and Environment : WIREs},
  volume    = {6},
  journal   = {Wiley interdisciplinary reviews : Energy and Environment : WIREs},
  number    = {1},
  publisher = {Wiley},
  address   = {Weinheim},
  issn      = {2041-840X},
  doi       = {10.1002/wene.217},
  pages     = {1 -- 19},
  year      = {2017},
  language  = {en}
}
@article{Meliss1997,
  author    = {Meliß, Michael},
  title     = {Aktuelle Aspekte der Windkraftnutzung},
  series = {Energiewirtschaftliche Tagesfragen. Jg. 47 (1997), H. 9},
  journal   = {Energiewirtschaftliche Tagesfragen. Jg. 47 (1997), H. 9},
  issn      = {0013-743X},
  pages     = {531 -- 532},
  year      = {1997},
  language  = {de}
}
@article{GoettscheGabrysch2001,
  author    = {G{\"o}ttsche, Joachim and Gabrysch, Karten},
  title     = {Analyse der Studentenwohnungen des Solar-Campus J{\"u}lich / G{\"o}ttsche, Joachim ; Gabrysch, Karten},
  series = {Umwelt, Geb{\"a}ude \& Gesundheit : von Energieeffizienz zur Raumlufthygiene ; Ergebnisse des 6. Fachkongresses der Arbeitsgemeinschaft {\"O}kologischer Forschungsinstitute (AG{\"O}F) am 20. und 21. September 2001 in N{\"u}rnberg / Arbeitsgemeinschaft {\"O}kologischer Forschungsinstitute (AG{\"O}F) e.V. [Red.: Sabine Weber]},
  journal   = {Umwelt, Geb{\"a}ude \& Gesundheit : von Energieeffizienz zur Raumlufthygiene ; Ergebnisse des 6. Fachkongresses der Arbeitsgemeinschaft {\"O}kologischer Forschungsinstitute (AG{\"O}F) am 20. und 21. September 2001 in N{\"u}rnberg / Arbeitsgemeinschaft {\"O}kologischer Forschungsinstitute (AG{\"O}F) e.V. [Red.: Sabine Weber]},
  publisher = {AG{\"O}F},
  address   = {Springe-Eldagsen},
  isbn      = {3-930576-03-1},
  pages     = {134 -- 148},
  year      = {2001},
  language  = {de}
}
@article{KearneyHerrmannNavaetal.2003,
  author    = {Kearney, D. and Herrmann, Ulf and Nava, P. and Kelly, B. and Mahoney, R. and Pacheco, J. and Cable, R. and Potrovitza, N. and Blake, D. and Price, H.},
  title     = {Assessment of a Molten Salt Heat Transfer Fluid in a Parabolic Trough Solar Field},
  series = {Journal of Solar Energy Engineering},
  volume    = {125},
  journal   = {Journal of Solar Energy Engineering},
  number    = {2},
  issn      = {1528-8986},
  doi       = {10.1115/1.1565087},
  pages     = {170 -- 176},
  year      = {2003},
  language  = {en}
}
@article{BuckSchwarzerMelissetal.1994,
  author    = {Buck, H. and Schwarzer, Klemens and Meliß, Michael and Faber, Christian},
  title     = {Aus- und Weiterbildung am Solar-Institut J{\"u}lich},
  series = {Energiewirtschaftliche Tagesfragen. 44 (1994), H. 9},
  journal   = {Energiewirtschaftliche Tagesfragen. 44 (1994), H. 9},
  isbn      = {0720-6240},
  pages     = {65 -- 68},
  year      = {1994},
  language  = {de}
}
@article{BuckFaberMelissetal.1995,
  author    = {Buck, H. and Faber, Christian and Meliß, Michael and Schwarzer, Klemens},
  title     = {Aus- und Weiterbildung am Solar-Institut J{\"u}lich},
  series = {Energie f{\"u}r die Zukunft : 28. Juni bis 1. Juli 1994 ; [Tagungsbericht 2] / 9. Internationales Sonnenforum '94. [Hrsg. Deutsche Gesellschaft f{\"u}r Sonnenenergie e.V. - DGS. Red. A. Hohmann ; H. H. Hohmann]. - (Internationales Sonnenforum ; 9,2)},
  journal   = {Energie f{\"u}r die Zukunft : 28. Juni bis 1. Juli 1994 ; [Tagungsbericht 2] / 9. Internationales Sonnenforum '94. [Hrsg. Deutsche Gesellschaft f{\"u}r Sonnenenergie e.V. - DGS. Red. A. Hohmann ; H. H. Hohmann]. - (Internationales Sonnenforum ; 9,2)},
  publisher = {DGS-Sonnenenergie},
  address   = {M{\"u}nchen},
  pages     = {1779 -- 1785},
  year      = {1995},
  language  = {de}
}
@article{GorzalkaSchmiedtSchorn2021,
  author    = {Gorzalka, Philip and Schmiedt, Jacob Estevam and Schorn, Christian},
  title     = {Automated Generation of an Energy Simulation Model for an Existing Building from UAV Imagery},
  series = {Buildings},
  volume    = {11},
  journal   = {Buildings},
  number    = {9},
  publisher = {MDPI},
  address   = {Basel},
  issn      = {2075-5309},
  doi       = {10.3390/buildings11090380},
  pages     = {15 Seiten},
  year      = {2021},
  abstract  = {An approach to automatically generate a dynamic energy simulation model in Modelica for a single existing building is presented. It aims at collecting data about the status quo in the preparation of energy retrofits with low effort and costs. The proposed method starts from a polygon model of the outer building envelope obtained from photogrammetrically generated point clouds. The open-source tools TEASER and AixLib are used for data enrichment and model generation. A case study was conducted on a single-family house. The resulting model can accurately reproduce the internal air temperatures during synthetical heating up and cooling down. Modelled and measured whole building heat transfer coefficients (HTC) agree within a 12\% range. A sensitivity analysis emphasises the importance of accurate window characterisations and justifies the use of a very simplified interior geometry. Uncertainties arising from the use of archetype U-values are estimated by comparing different typologies, with best- and worst-case estimates showing differences in pre-retrofit heat demand of about ±20\% to the average; however, as the assumptions made are permitted by some national standards, the method is already close to practical applicability and opens up a path to quickly estimate possible financial and energy savings after refurbishment.},
  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{MelissSelzerZiesing1991,
  author    = {Meliß, Michael and Selzer, H. and Ziesing, H. J.},
  title     = {CO2-Reduktionspotentiale erneuerbarer Energiequellen},
  series = {Energiewirtschaftliche Tagesfragen. Jg. 41 (1991), H. 5},
  journal   = {Energiewirtschaftliche Tagesfragen. Jg. 41 (1991), H. 5},
  issn      = {0013-743X ; 0720-6240},
  pages     = {291 -- 299},
  year      = {1991},
  language  = {de}
}
@article{WoliszSchuetzBlankeetal.2017,
  author    = {Wolisz, Henryk and Sch{\"u}tz, Thomas and Blanke, Tobias and Hagenkamp, Markus and Kohrn, Markus and Wesseling, Mark and M{\"u}ller, Dirk},
  title     = {Cost optimal sizing of smart buildings' energy system components considering changing end-consumer electricity markets},
  series = {Energy},
  volume    = {137},
  journal   = {Energy},
  publisher = {Elsevier},
  address   = {Amsterdam},
  doi       = {10.1016/j.energy.2017.06.025},
  pages     = {715 -- 728},
  year      = {2017},
  language  = {en}
}
@article{MelissSandtner1996,
  author    = {Meliß, Michael and Sandtner, W.},
  title     = {Der Forschungsstand bei den regenerativen Energiequellen},
  series = {Energiewirtschaftliche Tagesfragen. Jg. 46 (1996), H. 1/2},
  journal   = {Energiewirtschaftliche Tagesfragen. Jg. 46 (1996), H. 1/2},
  issn      = {0720-6240},
  pages     = {14 -- 23},
  year      = {1996},
  language  = {de}
}
@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{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{SteinMeliss1980,
  author    = {Stein, H. and Meliß, Michael},
  title     = {Die Bedeutung der Sonnenenergie f{\"u}r die zuk{\"u}nftige Energieversorgung der Bundesrepublik Deutschland},
  series = {Din-Mitteilungen + Elektronorm. Bd. 59 (1980), H. 8},
  journal   = {Din-Mitteilungen + Elektronorm. Bd. 59 (1980), H. 8},
  issn      = {0722-2912},
  pages     = {434 -- 440},
  year      = {1980},
  language  = {de}
}
@article{HerrmannNava2005,
  author    = {Herrmann, Ulf and Nava, P.},
  title     = {Die Strahlung der Sonne einfangen},
  series = {DLR-Nachrichten / Deutsches Zentrum f{\"u}r Luft- und Raumfahrt},
  volume    = {109},
  journal   = {DLR-Nachrichten / Deutsches Zentrum f{\"u}r Luft- und Raumfahrt},
  number    = {Sonderheft Solarforschung},
  issn      = {0937-0420},
  pages     = {34 -- 37},
  year      = {2005},
  language  = {de}
}
@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{Goettsche1994,
  author    = {G{\"o}ttsche, Joachim},
  title     = {Eldorado summer schools},
  series = {Progress in solar energy education. 3 (1994)},
  journal   = {Progress in solar energy education. 3 (1994)},
  isbn      = {1018-5607},
  pages     = {31 -- 33},
  year      = {1994},
  language  = {en}
}
@article{GoettscheHinschWittwer1993,
  author    = {G{\"o}ttsche, Joachim and Hinsch, Andreas and Wittwer, Volker},
  title     = {Electrochromic mixed WO3-TiO2 thin films produced by sputtering and the sol-gel technique : a comparison / J. G{\"o}ttsche ; A. Hinsch ; V. Wittwer},
  series = {Solar Energy Materials and Solar Cells. 31 (1993), H. 3},
  journal   = {Solar Energy Materials and Solar Cells. 31 (1993), H. 3},
  isbn      = {0927-0248},
  pages     = {415 -- 428},
  year      = {1993},
  language  = {en}
}
@article{GoettscheGabryschSchilleretal.2004,
  author    = {G{\"o}ttsche, Joachim and Gabrysch, K. and Schiller, H. and Kauert, B. and Schwarzer, Klemens},
  title     = {Energetic Effects of demand - controlled ventilation retrofitting in a biochemical laboratory building},
  series = {AIVC publications [Elektronische Ressource] / Air Infiltration and Ventilation Centre},
  journal   = {AIVC publications [Elektronische Ressource] / Air Infiltration and Ventilation Centre},
  publisher = {INIVE EEIG},
  address   = {Brussels},
  pages     = {50},
  year      = {2004},
  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{GrossTimmer1998,
  author    = {Groß, Rolf Fritz and Timmer, H.},
  title     = {Energetische und betriebswirtschaftliche Bewertung von K{\"u}hlsystemen f{\"u}r K{\"u}hllager},
  series = {HLH. Heizung, L{\"u}ftung/Klima, Haustechnik},
  volume    = {49},
  journal   = {HLH. Heizung, L{\"u}ftung/Klima, Haustechnik},
  number    = {9},
  publisher = {Springer},
  address   = {D{\"u}sseldorf},
  issn      = {1436-5103},
  pages     = {74 -- 77},
  year      = {1998},
  language  = {de}
}
@article{MelissWindheim1977,
  author    = {Meliß, Michael and Windheim, R.},
  title     = {Energiequelle f{\"u}r morgen : M{\"o}glichkeiten und Grenzen der Windenergienutzung - ein Statusbericht},
  series = {VDI-Nachrichten. Bd. 31 (1977), H. 22},
  journal   = {VDI-Nachrichten. Bd. 31 (1977), H. 22},
  issn      = {0042-1758},
  pages     = {37 -- 38},
  year      = {1977},
  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{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{KearneyKellyHerrmannetal.2002,
  author    = {Kearney, David W. and Kelly, Bruce and Herrmann, Ulf and Cable, R. and Pacheco, J. and Mahoney, R. and Price, Henry and Blake, D. and Nava, P. and Potrovitza, N.},
  title     = {Engineering Aspects of a Molten Salt Heat Transfer Fluid in a Trough Solar Field},
  series = {Energy : the international journal},
  volume    = {29},
  journal   = {Energy : the international journal},
  number    = {5-6 (Special Issue SolarPaces)},
  issn      = {0360-5442},
  doi       = {10.1016/S0360-5442(03)00191-9},
  pages     = {861 -- 870},
  year      = {2002},
  language  = {en}
}
@article{MelissSpaete1995,
  author    = {Meliß, Michael and Sp{\"a}te, Frank},
  title     = {Erneuerbare Energien sollen in die Bresche springen. Geld, Kraft und politisches Wollen ist gefragt},
  series = {VDI-Nachrichten. Nr. 46 vom 17.11.1995},
  journal   = {VDI-Nachrichten. Nr. 46 vom 17.11.1995},
  issn      = {0042-1758},
  pages     = {33},
  year      = {1995},
  language  = {de}
}
@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{ThulfautGross2000,
  author    = {Thulfaut, Christian and Groß, Rolf Fritz},
  title     = {Experimentelle Untersuchung der Luftstromvermischung in Hybridzellenk{\"u}hlt{\"u}rmen},
  series = {HLH. Heizung, L{\"u}ftung/Klima, Haustechnik},
  volume    = {51},
  journal   = {HLH. Heizung, L{\"u}ftung/Klima, Haustechnik},
  number    = {8},
  publisher = {Springer},
  address   = {D{\"u}sseldorf},
  issn      = {1436-5103},
  pages     = {48 -- 49},
  year      = {2000},
  abstract  = {Zwangsbel{\"u}ftete Nassk{\"u}hlt{\"u}rme haben im Gegensatz zur Trockenk{\"u}hlung bei naßkaltem Wetter Nebelschwaden zur Folge. Dagegen ist bei Naßk{\"u}hlung die spezifische K{\"u}hlleistung durch abgef{\"u}hrte Kondensationsw{\"a}rme h{\"o}her als bei der Trockenk{\"u}hlung. Hybridzellenk{\"u}hlt{\"u}rme kombinieren beide Methoden, so daß ein Mischstrom beider Abluftstr{\"o}me die Wasserdampf-S{\"a}ttigungsgrenze nicht {\"u}berschreitet. Durch das Mischungsverh{\"a}ltnis kann man den gew{\"u}nschten S{\"a}ttigungsgrad einstellen. Je dichter dieser an der S{\"a}ttigungsgrenze liegt, desto h{\"o}her ist die K{\"u}hlleistung. Der von unten zugef{\"u}hrte Luftstrom der Naßk{\"u}hlung und der seitlich zugef{\"u}hrte trockene Abluftstrom m{\"u}ssen sehr gut durchmischt werden, um {\"u}ber den gesamten Austrittsquerschnitt des K{\"u}hlturms die S{\"a}ttigungsgrenze nicht zu {\"u}berschreiten. In einem maßstabsgerechten Modell wurde der Mischungsgrad mit und ohne Einbauten untersucht. {\"U}ber ein Raster von 10 mal 10 Punkten wurde die {\"o}rtliche Temperaturverteilung ermittelt. W{\"a}rmebilanzen ergeben dann die Mischungsg{\"u}te in einer Ebene oberhalb der Zellenkrone. W{\"a}hrend ohne Mischeinbauten der Trockenluftanteil in der Mitte des Querschnitts bei unter 15 \% liegt erh{\"o}hen Einbauten den Trockenluftanteil auf 30 \% bis {\"u}ber 40 \%. Dabei wurde die Trockenluft auf jeder K{\"u}hlturmseite durch 4 konisch zulaufende, unten offene und oben geschlitzte Einbauten kanalisiert. Die Nassluft wurde durch eine im Querschnitt dreieckige Rinne in Richtung der Trockenluftausl{\"a}sse umgelenkt. Im Raster leicht zu lokalisierende Abweichungen vom gew{\"u}nschten Mittelwert zeigen Potential f{\"u}r die weitere Verbesserung der Einbauten.},
  language  = {de}
}
@article{ElMoussaouiTalbiAtmaneetal.2020,
  author    = {El Moussaoui, Noureddine and Talbi, Sofian and Atmane, Ilyas and Kassmi, Khalil and Schwarzer, Klemens and Chayeb, Hamid and Bachiri, Najib},
  title     = {Feasibility of a new design of a Parabolic Trough Solar Thermal Cooker (PSTC)},
  series = {Solar Energy},
  volume    = {201},
  journal   = {Solar Energy},
  number    = {Vol. 201 (May 2020)},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {0038-092X},
  doi       = {10.1016/j.solener.2020.03.079},
  pages     = {866 -- 871},
  year      = {2020},
  abstract  = {In this article, we describe the structure, the functioning, and the tests of parabolic trough solar thermal cooker (PSTC). This oven is designed to meet the needs of rural residents, including Urban, which requires stable cooking temperatures above 200 °C. The cooking by this cooker is based on the concentration of the sun's rays on a glass vacuum tube and heating of the oil circulate in a big tube, located inside the glass tube. Through two small tubes, associated with large tube, the heated oil, rise and heats the pot of cooking pot containing the food to be cooked (capacity of 5 kg). This cooker is designed in Germany and extensively tested in Morocco for use by the inhabitants who use wood from forests. During a sunny day, having a maximum solar radiation around 720 W/m2 and temperature ambient around 26 °C, maximum temperatures recorded of the small tube, the large tube and the center of the pot are respectively: 370 °C, 270 °C and 260 °C. The cooking process with food at high (fries, ..), we show that the cooking oil temperature rises to 200 °C, after 1 h of heating, the cooking is done at a temperature of 120 °C for 20 min. These temperatures are practically stable following variations and decreases in the intensity of irradiance during the day. The comparison of these results with those of the literature shows an improvement of 30-50 \% on the maximum value of the temperature with a heat storage that could reach 60 min of autonomy. All the results obtained show the good functioning of the PSTC and the feasibility of cooking food at high temperature (>200 °C).},
  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{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{GrossBergerGross2003,
  author    = {Groß, Rolf Fritz and Berger, J. and Groß, H.},
  title     = {Geb{\"a}udeautomation - Betriebsdatenerfassung und Geb{\"a}udeleittechnik im Klartext},
  series = {HLH. Heizung, L{\"u}ftung/Klima, Haustechnik},
  volume    = {54},
  journal   = {HLH. Heizung, L{\"u}ftung/Klima, Haustechnik},
  number    = {2},
  publisher = {Springer},
  address   = {D{\"u}sseldorf},
  issn      = {1436-5103},
  pages     = {81},
  year      = {2003},
  language  = {de}
}
@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{PeereBlanke2022,
  author    = {Peere, Wouter and Blanke, Tobias},
  title     = {GHEtool: An open-source tool for borefield sizing in Python},
  series = {Journal of Open Source Software},
  volume    = {7},
  journal   = {Journal of Open Source Software},
  number    = {76},
  editor    = {Vernon, Chris},
  issn      = {2475-9066},
  doi       = {10.21105/joss.04406},
  pages     = {1 -- 4, 4406},
  year      = {2022},
  abstract  = {GHEtool is a Python package that contains all the functionalities needed to deal with borefield design. It is developed for both researchers and practitioners. The core of this package is the automated sizing of borefield under different conditions. The sizing of a borefield is typically slow due to the high complexity of the mathematical background. Because this tool has a lot of precalculated data, GHEtool can size a borefield in the order of tenths of milliseconds. This sizing typically takes the order of minutes. Therefore, this tool is suited for being implemented in typical workflows where iterations are required. GHEtool also comes with a graphical user interface (GUI). This GUI is prebuilt as an exe-file because this provides access to all the functionalities without coding. A setup to install the GUI at the user-defined place is also implemented and available at: https://www.mech.kuleuven.be/en/tme/research/thermal_systems/tools/ghetool.},
  language  = {en}
}
@article{Meliss1995,
  author    = {Meliß, Michael},
  title     = {Globale Betrachtung regenerativer Energieressourcen und deren technischer Nutzungsm{\"o}glichkeiten},
  series = {Energie-Dialog. 1995, H. 4},
  journal   = {Energie-Dialog. 1995, H. 4},
  issn      = {0941-5068},
  pages     = {11 -- 15},
  year      = {1995},
  language  = {de}
}
@article{VelrajSeenirajHafneretal.1999,
  author    = {Velraj, R. and Seeniraj, R. V. and Hafner, B. and Faber, Christian and Schwarzer, Klemens},
  title     = {Heat transfer enhancement in a latent heat storage system},
  series = {Solar energy. Vol. 65, iss. 3},
  journal   = {Solar energy. Vol. 65, iss. 3},
  issn      = {0038-092X},
  pages     = {171 -- 180},
  year      = {1999},
  language  = {en}
}
@article{KronhardtAlexopoulosReisseletal.2014,
  author    = {Kronhardt, Valentina and Alexopoulos, Spiros and Reißel, Martin and Sattler, Johannes, Christoph and Hoffschmidt, Bernhard and H{\"a}nel, Matthias and Doerbeck, Till},
  title     = {High-temperature thermal storage system for solar tower power plants with open-volumetric air receiver simulation and energy balancing of a discretized model},
  series = {Energy procedia},
  volume    = {49},
  journal   = {Energy procedia},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {1876-6102 (E-Journal) ; 1876-6102 (Print)},
  doi       = {10.1016/j.egypro.2014.03.094},
  pages     = {870 -- 877},
  year      = {2014},
  abstract  = {This paper describes the modeling of a high-temperature storage system for an existing solar tower power plant with open volumetric receiver technology, which uses air as heat transfer medium (HTF). The storage system model has been developed in the simulation environment Matlab/Simulink®. The storage type under investigation is a packed bed thermal energy storage system which has the characteristics of a regenerator. Thermal energy can be stored and discharged as required via the HTF air. The air mass flow distribution is controlled by valves, and the mass flow by two blowers. The thermal storage operation strategy has a direct and significant impact on the energetic and economic efficiency of the solar tower power plants.},
  language  = {en}
}
@article{HerrmannSchwarzenbartDittmannGabrieletal.2019,
  author    = {Herrmann, Ulf and Schwarzenbart, Marc and Dittmann-Gabriel, S{\"o}ren and May, Martin},
  title     = {Hochtemperatur-W{\"a}rmespeicher f{\"u}r die Strom- und W{\"a}rmewende},
  series = {Solarzeitalter : Politik, Kultur und {\"O}konomie erneuerbarer Energien},
  volume    = {31},
  journal   = {Solarzeitalter : Politik, Kultur und {\"O}konomie erneuerbarer Energien},
  number    = {2},
  issn      = {0937-3802},
  pages     = {18 -- 23},
  year      = {2019},
  language  = {de}
}
@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{BlankeRegerDoeringetal.2021,
  author    = {Blanke, Tobias and Reger, Vitali and D{\"o}ring, Bernd and G{\"o}ttsche, Joachim and Kuhnhenne, Markus},
  title     = {Koaxiale Stahlenergiepf{\"a}hle},
  series = {Stahlbau},
  volume    = {90. 2021},
  journal   = {Stahlbau},
  number    = {6},
  publisher = {Wiley},
  address   = {Weinheim},
  pages     = {417 -- 424},
  year      = {2021},
  abstract  = {Ein entscheidender Teil der Energiewende ist die W{\"a}rmewende im Geb{\"a}udesektor. Ein Schl{\"u}sselelement sind hier W{\"a}rmepumpen. Diese ben{\"o}tigen eine W{\"a}rmequelle, der sie Energie entziehen k{\"o}nnen, um sie auf ein h{\"o}heres Temperaturniveau zu transformieren. Diese W{\"a}rmequelle kann bspw. das Erdreich sein, dessen W{\"a}rme durch Erdsonden erschlossen werden kann. In diesem Beitrag werden in Stahlpf{\"a}hle integrierte Koaxialsonden mit dem Stand der Technik von Erdsonden gleichen Durchmessers bez{\"u}glich ihrer thermischen Leistungsmerkmale verglichen. Die Stahlenergiepf{\"a}hle bieten neben der W{\"a}rmegewinnung weitere Vorteile, da sie auch eine statische Funktion {\"u}bernehmen und r{\"u}ckstandsfrei zur{\"u}ckgebaut werden k{\"o}nnen. Es werden analytische und numerische Berechnungen vorgestellt, um die thermischen Potenziale beider Systeme zu vergleichen. Außerdem wird ein Testaufbau gezeigt, bei dem Stahlenergiepf{\"a}hle in zwei verschiedenen L{\"a}ngen mit vorhandenen g{\"a}ngigen Erdsonden verglichen werden k{\"o}nnen. Die Berechnungen zeigen einen deutlichen thermischen Mehrertrag zwischen 26 \% und 148 \% der Stahlenergiepf{\"a}hle gegen{\"u}ber dem Stand der Technik abh{\"a}ngig vom Erdreich. Die Messergebnisse zeigen einen thermischen Mehrertrag von {\"u}ber 100 \%. Es l{\"a}sst sich also signifikante Erdsondenl{\"a}nge einsparen. Dabei ist zu beachten, dass sich damit der thermisch genutzte Bereich des Erdreichs reduziert, wodurch die thermische Regeneration und/oder das Langzeitverhalten des Erdreichs an Bedeutung gewinnt.},
  language  = {de}
}
@article{GoettscheHove1999,
  author    = {G{\"o}ttsche, Joachim and Hove, T.},
  title     = {Mapping global, diffuse and beam solar radiation over Zimbabwe / T. Hove ; J. G{\"o}ttsche},
  series = {Renewable energy. 18 (1999), H. 4},
  journal   = {Renewable energy. 18 (1999), H. 4},
  isbn      = {1879-0682},
  pages     = {535 -- 556},
  year      = {1999},
  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{GoettscheAlexopoulosDuemmleretal.2019,
  author    = {G{\"o}ttsche, Joachim and Alexopoulos, Spiros and D{\"u}mmler, Andreas and Maddineni, S. K.},
  title     = {Multi-Mirror Array Calculations With Optical Error},
  pages     = {1 -- 6},
  year      = {2019},
  abstract  = {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.},
  language  = {en}
}
@article{MeyerHaenelBeehetal.2020,
  author    = {Meyer, S. and H{\"a}nel, Matthias and Beeh, B. and Dittmann-Gabriel, S{\"o}ren and Dluhosch, R. and May, Martin and Herrmann, Ulf and [und 5 weitere],},
  title     = {Multifunktionaler thermischer Stromspeicher f{\"u}r die Strom- und W{\"a}rmeversorgung der Industrie von morgen},
  series = {ETG Journal / Energietechnische Gesellschaft im VDE (ETG)},
  volume    = {2020},
  journal   = {ETG Journal / Energietechnische Gesellschaft im VDE (ETG)},
  number    = {1},
  issn      = {2625-9907},
  pages     = {6 -- 9},
  year      = {2020},
  language  = {de}
}
@article{RegerKuhnhenneEbbertetal.2020,
  author    = {Reger, Vitali and Kuhnhenne, Markus and Ebbert, Thiemo and Hachul, Helmut and Blanke, Tobias and D{\"o}ring, Bernd},
  title     = {Nutzung erneuerbarer Energien durch thermische Aktivierung von Komponenten aus Stahl},
  series = {Stahlbau},
  volume    = {2020},
  journal   = {Stahlbau},
  number    = {Volume 89, Issue 6512-519},
  publisher = {Ernst \& Sohn},
  address   = {Berlin},
  issn      = {1437-1049},
  doi       = {10.1002/stab.202000031},
  pages     = {512 -- 519},
  year      = {2020},
  abstract  = {Die Versorgung von Neubauten soll m{\"o}glichst weitgehend unabh{\"a}ngig von fossilen Energietr{\"a}gern erfolgen. Erneuerbare Energien spielen daf{\"u}r eine gewichtige Rolle. Eine gute M{\"o}glichkeit, erneuerbare Energien ohne viel zus{\"a}tzlichen Aufwand nutzbar zu machen, ist, bereits vorhandenen Komponenten im Geb{\"a}ude zus{\"a}tzliche Funktionen zu geben. Hier kann bspw. die Fassade oder das Dach solarthermisch aktiviert oder durch Fotovoltaikmodule erg{\"a}nzt werden. Auch Tiefgr{\"u}ndungen k{\"o}nnen neben der statischen Funktion noch eine geothermische Funktion zur Aufnahme oder Abgabe von W{\"a}rme erhalten. Neben der Erzeugung bietet sich auch f{\"u}r die Verteilung der W{\"a}rme oder K{\"a}lte im Geb{\"a}ude die Integration in Bauteile an. Hier kann bspw. der Boden durch eine Fußbodenheizung oder die Decke durch Deckenstrahlplatten aktiviert werden. Im Rahmen der Ver{\"o}ffentlichung wird auf die thermische Aktivierung von Stahlkomponenten eingegangen. Es wird eine L{\"o}sung vorgestellt, die vorgeh{\"a}ngte hinterl{\"u}ftete Stahlfassade (VHF) solarthermisch zu aktivieren. Außerdem werden zwei M{\"o}glichkeiten zur geothermischen Aktivierung von Tiefgr{\"u}ndungen mittels Stahlpf{\"a}hlen gezeigt. Zuletzt wird ein System zur thermischen Aktivierung von Stahltrapezprofilen an der Decke erl{\"a}utert, welches W{\"a}rme zuf{\"u}hren oder bei Bedarf abf{\"u}hren kann.},
  language  = {de}
}
@article{DammSauerbornFendetal.2017,
  author    = {Damm, Marc Andr{\´e} and Sauerborn, Markus and Fend, Thomas and Herrmann, Ulf},
  title     = {Optimisation of a urea selective catalytic reduction system with a coated ceramic mixing element},
  series = {Journal of ceramic science and technology},
  volume    = {8},
  journal   = {Journal of ceramic science and technology},
  number    = {1},
  publisher = {G{\"o}ller},
  address   = {Baden-Baden},
  isbn      = {2190-9385 (Print)},
  issn      = {2190-9385 (Online)},
  doi       = {10.4416/JCST2016-00056},
  pages     = {19 -- 24},
  year      = {2017},
  language  = {en}
}
@article{Meliss1989,
  author    = {Meliß, Michael},
  title     = {Photovoltaik bietet gr{\"o}ßtes Potential. NRW-Forschungs- und Entwicklungsarbeiten bereits heute anerkennenswert},
  series = {Energie : das Magazin f{\"u}r Wirtschaft, Forschung, Technik, Umwelt. Bd. 41 (1989), H. 12},
  journal   = {Energie : das Magazin f{\"u}r Wirtschaft, Forschung, Technik, Umwelt. Bd. 41 (1989), H. 12},
  issn      = {0013-7359},
  pages     = {32 -- 41},
  year      = {1989},
  language  = {de}
}