気液二相流を考慮した数値解析による固体高分子形燃料電池の性能評価(マイクロ・小型分散・発電プラントにおける燃料電池最新技術,マイクロ・小型分散・発電プラントにおける燃料電池最新技術)

概要

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When PEFC is operated at high power, a drop of water is appeared in the channel and the gas diffusion layer. And then the gas supply is blocked, and the cell voltage decreases and becomes unstable. So we are developing a numerical code considering gas-liquid two-phase flow to elucidate the problem of water to PEFC. In the numerical model, mass and momentum conservation were considered two-dimensionally. Especially in mass conservation, the water vapor condensation was considered when the vapor pressure exceeded the saturation vapor pressure. In this report, we show the outline of the code and an example of the calculation result.
一般社団法人日本機械学会の論文
2004-09-04