elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Privacy Policy | Contact | Deutsch
Fontsize: [-] Text [+]

Solar water splitting for hydrogen production with monolithic reactors

Agrafiotis, Christos and Roeb, Martin and Konstandopoulos, Athanasios G. and Nalbandian, L. and Zaspalis, V.T. and Sattler, Christian and Stobbe, Per and Schäfer, Andrew (2005) Solar water splitting for hydrogen production with monolithic reactors. Solar Energy, 79, pp. 409-421. Elsevier.

[img] PDF - Registered users only
430kB

Abstract

The present work proposes the exploitation of solar energy for the dissociation of water and production of hydrogen via an integrated thermo-chemical reactor/receiver system. The basic idea is the use of multi-channelled honeycomb ceramic supports coated with active redox reagent powders, in a configuration similar to that encountered in automobile exhaust catalytic aftertreatment. Iron-oxide-based redox materials were synthesized, capable to operate under a complete redox cycle: they could take oxygen from water producing pure hydrogen at reasonably low temperatures (800 °C) and could be regenerated at temperatures below 1300 �C. Ceramic honeycombs capable of achieving temperatures in that range when heated by concentrated solar radiation were manufactured and incorporated in a dedicated solar receiver/reactor. The operating conditions of the solar reactor were optimised to achieve adjustable, uniform temperatures up to 1300 °C throughout the honeycomb, making thus feasible the operation of the complete cycle by a single solar energy converter.

Item URL in elib:https://elib.dlr.de/49474/
Document Type:Article
Title:Solar water splitting for hydrogen production with monolithic reactors
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Agrafiotis, ChristosCERTH/CPERI APTLUNSPECIFIED
Roeb, MartinUNSPECIFIEDUNSPECIFIED
Konstandopoulos, Athanasios G.CERTH/CPERI APTLUNSPECIFIED
Nalbandian, L.CERTH/CPERI APTLUNSPECIFIED
Zaspalis, V.T.CERTH/CPERI APTLUNSPECIFIED
Sattler, ChristianUNSPECIFIEDUNSPECIFIED
Stobbe, PerStobbeTechUNSPECIFIED
Schäfer, AndrewJohnson MattheyUNSPECIFIED
Date:4 June 2005
Journal or Publication Title:Solar Energy
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Volume:79
Page Range:pp. 409-421
Editors:
EditorsEmail
Malato, SixtoUNSPECIFIED
Publisher:Elsevier
Status:Published
Keywords:Water-splitting, Solar; Redox materials, Iron oxide, Honeycomb reactors, Hydrogen
HGF - Research field:Energy
HGF - Program:Renewable Energies
HGF - Program Themes:E SF - Solar research (old)
DLR - Research area:Energy
DLR - Program:E SF - Solar research
DLR - Research theme (Project):E - Solare Stoffumwandlung (old)
Location: Köln-Porz
Institutes and Institutions:Institute of Engineering Thermodynamics > Solar Research
Deposited By: Sattler, Prof. Dr. Christian
Deposited On:09 Aug 2007
Last Modified:12 Dec 2013 20:25

Repository Staff Only: item control page

Browse
Search
Help & Contact
Information
electronic library is running on EPrints 3.3.12
Copyright © 2008-2017 German Aerospace Center (DLR). All rights reserved.