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Microchannel Reformer for Micro Fuel Cell
S.P.Yu(유상필),S.D.Lim(임성대),Y.K.Yoon(윤영기),W.Y.Lee(이원용),C.S.Kim(김창수) 대한기계학회 2005 대한기계학회 춘추학술대회 Vol.2005 No.5
Micro PEMFC(Proton Exchange Membrane Fuel Cell) needs to be supplied with high purity hydrogen to produce electricity. Each microstructured stainless steel foil for the purpose of micro reformer was brazed in vacuum for stacking. Inner surface of micro channels was coated with Al₂O₃ layer to support reforming catalysts by sol-gel method. The stack reactor was designed like a heat exchanger to perform the combination of exothermic and endothermic reactions simultaneously. As the first step in our study, we measured experimentally the heat transfer rate and the conversion of the reaction in the channels. The combustion heat of LPG-air was transferred to the other channels where cold air flowed. As a consequence, quantitative and qualitative thermal characteristics of the stack for reaction were investigated.