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Efficiency assessment of a two-step thermochemical water-splitting process based on a dynamic process model

Lange, Matthias and Roeb, Martin and Sattler, Christian and Pitz-Paal, Robert (2015) Efficiency assessment of a two-step thermochemical water-splitting process based on a dynamic process model. International Journal of Hydrogen Energy, 40, pp. 12108-12119. Elsevier. DOI: 10.1016/j.ijhydene.2015.07.056 ISSN 0360-3199

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Official URL: http://www.sciencedirect.com/science/article/pii/S0360319915018297

Abstract

Solar hydrogen production via two-step thermochemical redox cycles a promising candidate for green fuel production in the future energy market. In a European consortium, the Hydrosol concept has been developed to split water in such a thermochemical cycle. We developed a transient reactor model in order to predict the upper-limit efficiency of a largescale process based on the Hydrosol reactor concept. The analysis shows that the state-ofthe- art ferrite-based redox material properties need to be improved considerably in order to reach competitive efficiency. The two main properties that need improvement are the reaction kinetics on the one hand and the amount of oxygen that can be incorporated into and released from the redox material on the other hand.

Item URL in elib:https://elib.dlr.de/98295/
Document Type:Article
Title:Efficiency assessment of a two-step thermochemical water-splitting process based on a dynamic process model
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Lange, Matthiasmatthias.lange (at) dlr.deUNSPECIFIED
Roeb, MartinMartin.roeb (at) dlr.deUNSPECIFIED
Sattler, Christianchristian.sattler (at) dlr.deUNSPECIFIED
Pitz-Paal, Robertrobert.pitz-paal (at) dlr.deUNSPECIFIED
Date:1 August 2015
Journal or Publication Title:International Journal of Hydrogen Energy
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:40
DOI :10.1016/j.ijhydene.2015.07.056
Page Range:pp. 12108-12119
Publisher:Elsevier
ISSN:0360-3199
Status:Published
Keywords:Thermochemical cycle Hydrogen Solar Water splitting Efficiency
HGF - Research field:Energy
HGF - Program:Renewable Energies
HGF - Program Themes:Concentrating Solar Systems (old)
DLR - Research area:Energy
DLR - Program:E SF - Solar research
DLR - Research theme (Project):E - Solar Process Technology (old)
Location: Köln-Porz
Institutes and Institutions:Institute of Solar Research > Solare Verfahrenstechnik
Deposited By: Sattler, Prof. Dr. Christian
Deposited On:28 Sep 2015 09:38
Last Modified:28 Sep 2015 09:38

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