Wullenkord, Michael und Jung, Christian und Sattler, Christian (2012) Development of a Concentrator with a Rectangular Flat Focus Used for Hydrogen Production via Photocatalytic Water Splitting Employing Solar Radiation. In: Proceedings of the ASME 2012 6th International Conference on Energy Sustainability & 10th Fuel Cell Science, Engineering and Technology Conference (ESFuelCell2012). ASME 2012 6th International Conference on Energy Sustainability & 10th Fuel Cell Science, Engineering and Technology Conference (ESFuelCell2012), 2012-07-23 - 2012-07-26, San Diego, USA. doi: 10.1115/ES2012-91441.
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Kurzfassung
Hydrogen is a promising energy carrier. A carbon-free option to produce hydrogen is the photocatalytic splitting of water, when solar radiation provides the photons needed for the reaction. The DLR develops a test bed to assess the activity of potential catalysts either in suspensions or in fixed-bed electrochemical cells under practical sun-light conditions, concentrated by a factor up to 20. A rectangular flat focus is required in order to guarantee a homogeneous distribution of concentrated radiation on the planar receiver plate, where the light enters the receiver. A low deviation of irradiation on the receiver plate promotes a reliable evaluation of the catalysts’ efficiency and quantum yields. This paper is focused on the development of a suitable concentrator concept. A concentrator/receiver-concept featuring a homogeneous distribution of radiation on the reactor surface was chosen after analyzing different options by means of a ray tracing tool. The favorite concept employs a 2-axis modified linear Fresnel collector. The overall dimensions were determined taking the optical properties of the irradiated surface of the reactor into account. A limitation of the angle of incidence ensures that only a marginal fraction of the radiation is lost due to reflection on the irradiated surface of the reactor.
elib-URL des Eintrags: | https://elib.dlr.de/80526/ | ||||||||||||||||
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Dokumentart: | Konferenzbeitrag (Vortrag) | ||||||||||||||||
Titel: | Development of a Concentrator with a Rectangular Flat Focus Used for Hydrogen Production via Photocatalytic Water Splitting Employing Solar Radiation | ||||||||||||||||
Autoren: |
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Datum: | 23 Juli 2012 | ||||||||||||||||
Erschienen in: | Proceedings of the ASME 2012 6th International Conference on Energy Sustainability & 10th Fuel Cell Science, Engineering and Technology Conference (ESFuelCell2012) | ||||||||||||||||
Referierte Publikation: | Ja | ||||||||||||||||
Open Access: | Nein | ||||||||||||||||
Gold Open Access: | Nein | ||||||||||||||||
In SCOPUS: | Nein | ||||||||||||||||
In ISI Web of Science: | Nein | ||||||||||||||||
DOI: | 10.1115/ES2012-91441 | ||||||||||||||||
Status: | veröffentlicht | ||||||||||||||||
Stichwörter: | solar, concentrator, reactor, photochemistry, hydrogen, ray tracing | ||||||||||||||||
Veranstaltungstitel: | ASME 2012 6th International Conference on Energy Sustainability & 10th Fuel Cell Science, Engineering and Technology Conference (ESFuelCell2012) | ||||||||||||||||
Veranstaltungsort: | San Diego, USA | ||||||||||||||||
Veranstaltungsart: | internationale Konferenz | ||||||||||||||||
Veranstaltungsbeginn: | 23 Juli 2012 | ||||||||||||||||
Veranstaltungsende: | 26 Juli 2012 | ||||||||||||||||
Veranstalter : | American Society of Mechanical Engineering | ||||||||||||||||
HGF - Forschungsbereich: | Energie | ||||||||||||||||
HGF - Programm: | Erneuerbare Energie | ||||||||||||||||
HGF - Programmthema: | Konzentrierende Solarsysteme (alt) | ||||||||||||||||
DLR - Schwerpunkt: | Energie | ||||||||||||||||
DLR - Forschungsgebiet: | E SF - Solarforschung | ||||||||||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | E - Solare Verfahrenstechnik (alt) | ||||||||||||||||
Standort: | Köln-Porz | ||||||||||||||||
Institute & Einrichtungen: | Institut für Solarforschung > Solare Verfahrenstechnik | ||||||||||||||||
Hinterlegt von: | Sattler, Prof. Dr. Christian | ||||||||||||||||
Hinterlegt am: | 11 Jan 2013 13:49 | ||||||||||||||||
Letzte Änderung: | 24 Apr 2024 19:47 |
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