多孔質層における圧力分布計算による固体高分子形燃料電池内のガス流動解析(水素・燃料電池,<特集>第13回動力・エネルギー技術シンポジウム)

概要

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The deformation of gas diffusion layer (GDL) plays an important role on the performance of polymer electrolyte fuel cell since the physical properties such as porosity and permeability of the GDL and the cross sectional area of the gas channel are affected by the structural deformation of GDL. Non-uniform deformations of GDL are taken into consideration and are chosen as in the experimental data. A transient, non-isothermal and three-dimensional numerical model has been used to find the solutions for a wide range of porosity and permeability values. Further, the effects of these parameters on the pressure distribution are measured. It is found that there is an effective range of porosity and permeability values for which these parameters have a very strong effect on the pressure drop (difference of pressure from inlet and outlet).
社団法人日本機械学会の論文
2009-03-25