フィン付き冷却面上の水の凍結に関するフィン寸法比の検討

概要

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This study was carried out experimentally and analytically concerning freezing water in a closed horizontal vessel having an upper cooling wall with fins. A one-dimensional simple analysis predicts the frozen layer thickness. It was found that increasing the number of fins (i.e., decreasing the length between fins L does not always enhance the frozen layer thickness. It was consequently determined that the ratio of a netfrozen layer thickness with fins to the layer with no fins has the maximum value at an optimum size ratio of fins. The optimum size ratio of fins was presented with a correlation of L/H={0.022(λ_F/λ_I)+2.65}(δ/H), where H: height of fins, δ: thickness of fins, λ_F: thermal conductivity of fins, and λ_I: thermal conductivity of ice.
一般社団法人日本機械学会の論文
1990-12-25