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    THE EXPERIMENTAL STUDIES ON ELECTROLYSER MODE OPERATION OF UNITIZED REGENERATIVE PEM FUEL CELL
    (International Association for Hydrogen Energy, IAHE, 2022) Yelegen, Nebi; Altuntop, Enis Selçuk; Atalmis, Gamze; Kaplan, Yüksel
    A unitized regenerative proton exchange membrane fuel cell (UR-PEMFC) is an electrochemical component that is capable of operating both as electrolyser and fuel cell mode. While UR-PEMFC produces hydrogen and oxygen by decomposing water in the electrolyser mode, it can also produce electricity and heat by using hydrogen as fuel in the fuel cell mode. A reversible system possesses several distinctive advantages for instance, high specific energy, pollution free, and most importantly, the decoupled energy storage capacity with rated power [1]. In this study, the performance of a unitized regenerative fuel cell and stack in electrolyser mode was investigated. The active areas of URFC are 100 cm2, and the stack has three cell, which has a 100 cm2 active area. The clamping pressure is optimized for cell and stack by using pressure film. Thus, the contact resistance was minimized, and optimum contact was achieved. © 2022 Proceedings of WHEC 2022 - 23rd World Hydrogen Energy Conference: Bridging Continents by H2. All rights reserved.