Abstract
To maintain proper operating conditions is important to get optimal output power of a polymer electrolyte membrane fuel cell (PEMFC) stack. The air cooled fuel cell stack is widely used in sub kW PEMFC systems. The higher the power density of a stack, however, the more difficult it is to get well balanced operating conditions for the system such as the relative humidity, the temperature of stack, the rate of usage of reactant and so on. A 600W air cooled PEMFC stack was experimentally investigated to evaluate the design performance and to get optimal operating conditions for the portable application. The relationship between the operating conditions and the performance was analyzed. The results can be used as design criteria for portable PEMFC under various conditions.
Published Version
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