TY - JOUR A1 - Rost, Ulrich A1 - Mutascu, Cristian A1 - Roth, Jeffrey A1 - Sagewka, Christoph A1 - Brodmann, Michael T1 - Proof of Concept of a Novel PEM Fuel Cell Stack Design with Hydraulic Compression JF - Journal of Energy and Power Engineering N2 - In this study, a novel design concept for PEMFC (polymer electrolytemembrane fuel cell) stacks is presented with singlecells inserted in pockets surrounded by a hydraulic medium. Thehydraulic pressure introduces necessary compression forces to themembrane electrode assembly of each cell within a stack. Moreover, homogeneous cell cooling is achieved by this medium. First,prototypes presented in this work indicate that, upscaling of cells for the novelstack design is possible without significantperformancelosses. Due to its modularity and scalability, this stackdesign meets the requirements for large PEMFC units. KW - modular stack design KW - Polymer-Elektrolytmembran-Brennstoffzelle KW - hydraulic compression KW - Homogene Kühlung Y1 - 2015 U6 - https://doi.org/10.17265/1934-8975/2015.09.003 VL - 9 IS - 9 SP - 775 EP - 783 ER - TY - JOUR A1 - Rost, Ulrich A1 - Brodmann, Michael A1 - Şerban, Viorel-Aurel A1 - Mutascu, Cristian A1 - Roth, Jeffrey A1 - Zekorn, Bruno T1 - State of the Art of PEM Fuel Cells with a Focus on a Modular Fuel Cell Stack with Hydraulic Compression JF - Scientific bulletin of the "politehnica" university of Timisoara, Romania. Transactions on mechanics N2 - This report gives a brief overview to the state of the art of PEM fuel cell technology and a description of a newly developed fuel cell stack concept. One main research activity at the Westphalian Energy Institute of the Westphalian University of Applied Sciences is the development of PEM fuel cells, for which a range of different materials have been investigated for fuel cell pole plate construction. Whereas graphite is a material which has suitable properties concerning conductivity as well as manufacturing e.g. for milling, stainless steel foils are suitable for economical hydroforming processes. However, with steel coating is necessary to increase corrosion resistance as well as electrical conductivity. A new fuel cell stack design is currently under development using separated single fuel cells with hydraulic cell compression. The advantages of this stack concept are modularity, effective heat exchanging and constant, uniform cell compression which are further described in this work. KW - PEM fuel cell KW - modular stack design KW - hydraulic compression KW - Polymer-Elektrolytmembran-Brennstoffzelle KW - Stack Y1 - 2012 VL - 57 (71) IS - 2 SP - 1 EP - 6 ER -