Abstract
High temperature proton exchange membrane fuel cell (HT-PEMFC) advances the applications of fuel cells in automobile applications, and smooth start-up is one of the critical topics in researches. This work utilizes four pre-heat fluid mediums, i.e. water, silicone oil, liquid paraffin and air, to examine the pre-heat and start-up performance of single HT-PEMFC. Experimental temperature data at 10 different locations on upper side of bipolar plates matches well with that of simulation. The results show preheating in liquid phase meets the requirements of start-up, but leads to instability in the system. So liquid cannot be employed for pre-heat. On the contrary, preheating by gas phase will achieve good start-up performance, and may be used for hybrid electric vehicle (HEV).
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