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Hydrogen from Regenerative Energy Power Sources: pressurized alkaline electrolyser with high efficiency and wide operating range (“RESelyser”).

Reissner, R. and Schiller, G. and Guelzow, E. and Alvarez Gallego, Y. and Doyen, W. and Funke, A. and Fawcus, P. and Vaes, J. and Bowen, J.R. (2013) Hydrogen from Regenerative Energy Power Sources: pressurized alkaline electrolyser with high efficiency and wide operating range (“RESelyser”). In: http://indico.conferences.dtu.dk/conferenceDisplay.py?ovw=True&confId=131. Workshop on Electrolysis and CO2-recycling, Roskilde, Dänemark.

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Official URL: http://indico.conferences.dtu.dk/conferenceDisplay.py?ovw=True&confId=131

Abstract

The project RESelyser develops high pressure, highly efficient, low cost alkaline water electrolyzers that can be integrated with renewable energy power sources (RES) using an advanced membrane concept, highly efficient electrodes and a new cell design. A new separator membrane with internal electrolyte circulation and an adapted design of the cell to improve mass transfer, especially gas evacuation is investigated and demonstrated. Intermittent and varying load operation with RES is addressed by improved electrode stability and a cell concept for increasing the gas purity of hydrogen and oxygen especially at part load operation. Also the system architecture will be optimized for intermittent operation of the electrolyzer. Some recent results will be presented: high performance electrodes with a plasma sprayed coating layer give an overpotential reduction of 330 mV compared to uncoated electrodes thus showing high performance and stability. A double layer diaphragm with internal KOH supply improves the gas purity and high current density performance of the cell. The research leading to these results has received funding from the European Union’s Seventh Framework Programme (FP7/2007-2013) for the Fuel Cells and Hydrogen Joint Technology Initiative under grant agreement n° [278732] 10.

Document Type:Conference or Workshop Item (Poster)
Title:Hydrogen from Regenerative Energy Power Sources: pressurized alkaline electrolyser with high efficiency and wide operating range (“RESelyser”).
Authors:
AuthorsInstitution or Email of Authors
Reissner, R.regine.reissner@dlr.de
Schiller, G.guenter.schiller@dlr.de
Guelzow, E.erich.guelzow@dlr.de
Alvarez Gallego, Y.VITO
Doyen, W.VITO
Funke, A.Hydrogenics Europe
Fawcus, P.Hydrogenics Europe
Vaes, J. Hydrogenics Europe
Bowen, J.R. DTU
Date:9 April 2013
Journal or Publication Title:http://indico.conferences.dtu.dk/conferenceDisplay.py?ovw=True&confId=131
Refereed publication:No
In ISI Web of Science:No
Editors:
EditorsEmail
Mogensen , Morgens B.DTU
Lackner, Klaus S.DTU
Status:Published
Keywords:Elektrolyse; Alkalisch; Wasserstoff
Event Title:Workshop on Electrolysis and CO2-recycling
Event Location:Roskilde, Dänemark
Event Type:international Conference
Organizer:09.-11. April 2013
HGF - Research field:Energy
HGF - Program:Efficient Energy Conversion and Use
HGF - Program Themes:Fuel Cells
DLR - Research area:Energy
DLR - Program:E EV - Energy process technology
DLR - Research theme (Project):E - Elektrochemische Prozesse
Location: Stuttgart
Institutes and Institutions:Institute of Technical Thermodynamics > Electrochemical Energy Technology
Deposited By: Regine Reißner
Deposited On:23 Oct 2013 11:01
Last Modified:23 Oct 2013 11:01

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