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A novel PEM electrolysis system with dynamic hydraulic compression for an optimized high-pressure operation

  • In this experimental work we present a novel electrolyzer system for the production of hydrogen and oxygen at high pressure levels without an additional mechanical compressor. Due to its control strategies, the operation conditions for this electrolyzer can be kept optimal for each load situation of the system. Furthermore, the novel system design allows for dynamic long-term operation as well as for easy maintainability. Therefore, the device meets the requirements for prospective power-to-gas applications, especially, in order to store excess energy from renewable sources. A laboratory scale device has been developed and high-pressure operation was validated. We also studied the long-term stability of the system by applying dynamic load cycles with load changes every 30 sec. After 80 h of operation the used membrane electrode assembly (MEA) was investigated by means of SEM, EDX and XRD analysis.

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Author:Florian Josef Wirkert, Jeffrey Roth, Ulrich Rost, Michael Brodmann
Parent Title (German):NEIS Conference 2016. Nachhaltige Energieversorgung und Integration von Speichern
Publisher:Springer Vieweg
Place of publication:Wiesbaden
Editor:Detlef Schulz
Document Type:Conference Proceeding
Date of Publication (online):2017/02/24
Year of first Publication:2017
Publishing Institution:Westfälische Hochschule Gelsenkirchen Bocholt Recklinghausen
Release Date:2017/04/10
Tag:PEM Electrolysis, Hydrogen, Hydraulic Compression, High Pressure
First Page:169
Last Page:174
Departments / faculties:Institute / Westfälisches Energieinstitut
Licence (German):License LogoEs gilt das Urheberrechtsgesetz

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