F143 矩形フィン形素子を用いたマイクロ熱電発電システムに関する準三次元熱・電気連成解析(OS-12 マイクロ・ナノスケール熱流動現象IV)

概要

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Total performance prediction was carried out for a micro thermoelectric power generator employing rectangular-fin elements and regenerative combustion, which utilizes the combustion gas to preheat the working gas. In the analysis, an array of rectangular-fin elements and hot- and cold-side gases were modeled as a fluid-saturated porous medium bounded by a solid wall. After the validation of the porous medium model, quasi three-dimensional simulations considering the heat and electric current flow in the flow direction were carried out. As a result, for element thickness t=0.5mm, it was found that the overall conversion efficiency from total heat input into electrical energy exceeds 3% as a target, at the electrical power to pumping power ratio more than three and volumetric power density more than 30mW/cm^3.
社団法人日本機械学会の論文
2005-11-02