TY  - CONF
A1  - Rost, Ulrich
A1  - Roth, Jeffrey
A1  - Brodmann, Michael
A2  - Kubis, Andreas
A2  - Rehtanz, Christian
A2  - Shapovalov, Anton
A2  - Hilbrich, Dominik
A2  - Plota, Ewa
T1  - Modular Polymer Electrolyte Membrane Fuel Cell and Electrolyser Stack Design with Hydraulic Compression
T2  - Power and Energy Student Summit(PESS) 2015, January 13th-14th, Dortmund Germany
N2  - An energy economy with high share of renewable but volatile energy sources is dependent on storage strategies in order to ensure sufficient energy delivery in periods of e.g. low wind and/or low solar radiation. Hydrogen as environmental friendly energy carrier is thought to be an appropriate solution for large scale energy storage. In 2011 the NOW (national organisation for hydrogen in Germany) calculated the demand for hydrogen energy systems as positive (0.8 GW to 5.25 GW) and negative supply for varying power demand (0.68 to 4.3 GW) for the German energy economy in 2025. Due to its dynamic behaviour on load changes polymer electrolyte membrane fuel cells (PEMFC) as well as water electrolyser systems (PEMEL) can play a significant role for large scale hydrogen based storage systems. In this work a novel design concept for modular fuel cell and electrolyser stacks is presented with single cells in pockets surrounded by a hydraulic medium. This hydraulic medium introduces necessary compression forces on the membrane electrode assembly (MEA) of each cell within a stack. Furthermore, ideal stack cooling is achieved by this medium. Due to its modularity and scalability the modular stack design with hydraulic compression meets the requirements for large PEMFC as well as PEMEL units. Small scale prototypes presented in this work illustrate the potential of this design concept.
Y1  - 2015
UR  - https://whge.opus.hbz-nrw.de/frontdoor/index/index/docId/1016
SP  - S02.4
ER  -