Development of water cooling system for a 2 KW PEM fuel cell stack
کد مقاله : 1053-THFC
نویسندگان
محمد رضایی فیروزجایی *1، ابوالقاسم ابوالقاسمی1، سیدمجید رهگشای2، مجید صدیقی1
1پژوهشگر دانشگاه صنعتی مالک اشتر
2دانشگاه صنعتی مالک اشتر
چکیده مقاله
By increasing the demands for energy, limitation in fossil energy sources and environmental problem makes to use renewable and zero emission energy like hydrogen and fuel cell. PEM fuel cell technology has a variety application and high power stacks need a cooling system for controlling the stack operating temperature. Using water as working fluid in cooling system can increase the volumetric energy density and performance of PEM fuel cell Power system. For designing of a water cooling system for a PEM fuel cell stack, controlling the operating temperature, water flow rate and conductivity of cooling water is the main criteria. In this research a water cooling system is developed for a PEM fuel cell stack and this system was tested by a 2 kW stack in laboratory. According the test result, by flowing 8 LPM cooling water through the stack the operating temperature of the stack is controlled in design target value (70°C) and the temperature difference for water inlet and outlet temperature remain less the 3.95°C. The water flow rate in deionizer was about 2 LPM and the conductivity of water at the end of the test was less than 6 µs/cm.
کلیدواژه ها
Fuel cell, heat management, hydrogen, energy, power system
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