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Simulation of a Solar Receiver-Reactor for Hydrogen Production

Neises, Martina und Göhring, Felix und Roeb, Martin und Sattler, Christian und Pitz-Paal, Robert (2009) Simulation of a Solar Receiver-Reactor for Hydrogen Production. In: ASME 2009 3rd International Conference on Energy Sustainability, Vol. 1, Seiten 295-304. ASME Digital Collection. ASME 2009 3rd International Conference on Energy Sustainability, 2009-07-19 - 2009-07-23, San Francisco. doi: doi:10.1115/ES2009-90273. ISBN 978-0-7918-4889-0.

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Offizielle URL: http://proceedings.asmedigitalcollection.asme.org/proceeding.aspx?articleid=1647764

Kurzfassung

The transient thermal behavior of two solar receiver-reactors for hydrogen production has been modeled using Modelica/Dymola. The simulated reactors are dedicated to carry out the same chemical reactions but represent two different development stages of the project HYDROSOL and two different orders of magnitude concerning reactor size and hydrogen production capacity. The process itself is a two step thermochemical cycle, which uses mixed iron-oxides as a redox-system. The iron-oxide is coated on a ceramic substrate, which is placed inside the receiver-reactor and serves on the one hand as an absorber for solar radiation and on the other hand as the reaction zone for the chemical reaction. The process consists of a water splitting step in which hydrogen is produced and a regeneration step during which the used redox-material is being reduced. The reactor is operated between these two reaction conditions in regular intervals with alternating temperature levels of about 800 °C for the water splitting step and 1200 °C for the regeneration step. Because of this highly dynamic process and because of fluctuating solar radiation during the day, a mathematical tool was necessary to model the transient behavior of the reactor for theoretical studies. Two models have been developed for two existing receiver-reactors. One model has been set up to simulate the behavior of a small scale test reactor, which has been built and tested at the solar furnace of DLR in Cologne. Results are very promising and show that the model is able to reflect the thermal behavior of the reactor. Another model has been developed for a 100 kWth pilot reactor which was set up at the Plataforma Solar de Almería in Spain. This model is based on the first model but special geometrical features had to be adapted. With this model temperatures and hydrogen production rates could be predicted.

elib-URL des Eintrags:https://elib.dlr.de/108379/
Dokumentart:Konferenzbeitrag (Vortrag)
Titel:Simulation of a Solar Receiver-Reactor for Hydrogen Production
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iDORCID Put Code
Neises, MartinaMartina.Neises (at) dlr.dehttps://orcid.org/0000-0002-5449-4726NICHT SPEZIFIZIERT
Göhring, FelixFelix.Goehring (at) dlr.dehttps://orcid.org/0000-0002-8514-0453NICHT SPEZIFIZIERT
Roeb, MartinMartin.Roeb (at) dlr.deNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Sattler, ChristianChristian.Sattler (at) dlr.dehttps://orcid.org/0000-0002-4314-1124NICHT SPEZIFIZIERT
Pitz-Paal, RobertRobert.Pitz-Paal (at) dlr.dehttps://orcid.org/0000-0002-3542-3391NICHT SPEZIFIZIERT
Datum:2009
Erschienen in:ASME 2009 3rd International Conference on Energy Sustainability, Vol. 1
Referierte Publikation:Ja
Open Access:Nein
Gold Open Access:Nein
In SCOPUS:Nein
In ISI Web of Science:Nein
DOI:doi:10.1115/ES2009-90273
Seitenbereich:Seiten 295-304
Verlag:ASME Digital Collection
ISBN:978-0-7918-4889-0
Status:veröffentlicht
Stichwörter:hydrogen, thermochemical cycle, Dymola, iron oxide
Veranstaltungstitel:ASME 2009 3rd International Conference on Energy Sustainability
Veranstaltungsort:San Francisco
Veranstaltungsart:internationale Konferenz
Veranstaltungsbeginn:19 Juli 2009
Veranstaltungsende:23 Juli 2009
Veranstalter :ASME
HGF - Forschungsbereich:Energie
HGF - Programm:Erneuerbare Energie
HGF - Programmthema:Solare Brennstoffe
DLR - Schwerpunkt:Energie
DLR - Forschungsgebiet:E SF - Solarforschung
DLR - Teilgebiet (Projekt, Vorhaben):E - Solare Brennstoffe (alt)
Standort: Köln-Porz
Institute & Einrichtungen:Institut für Solarforschung
Institut für Solarforschung > Solare Verfahrenstechnik
Hinterlegt von: Roeb, Dr.rer.nat. Martin
Hinterlegt am:01 Dez 2016 19:14
Letzte Änderung:24 Apr 2024 20:13

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