エタノール直接発電型固体高分子燃料電池のアノード側流路内における流動と副生成物の挙動の解析(熱工学,内燃機関,動力など)

概要

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A direct ethanol polymer electrolyte fuel cell (DEFC) is an energy conversion system suitable for recycle-oriented society on the point that it uses innocuous bio fuel, but there exists a problem that its power generation performance is low. One of the causes is the generation and stagnation of by products in the anode-side passage. In this study, the authors have conducted numerical and experimental analyses of the liquid flow in various types of channels in the anode-side passage for estimating the pressure loss between an inlet and an outlet, and also for investigating the behavior of by products such as acetic acid produced in the passage. It has been found that a serpentine channel with branches is preferable because the pressure loss in the channel is much lower than in a serpentine channel and also the channel is likely to discharge by-products smoothly.
2008-09-25