低凝固点水溶液による雪層の融解 : CaCl_2水溶液と雪層の初期温度が同じときの濃度拡散支配モデルによる解析

概要

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An analytical result of the diffusion-controlled melting of a snow layer is presented here when a snow layer was quickly immersed in CaCl_2 aqueous solution. The analytical result predicts the experimental results of melting well. The temperature in the melting system decreases quickly during the melting. The melting completes in a few seconds, which denotes a thermodynamical equilibrium. When the initial temperature Τ_i and the initial porosity of snow ε_i. the constant, the initial concentration C_<mi> in the solution strongly affects both the decrease in the temperature in the melting system and the melting mass per unit volume Μ. When C_<mi>, Τ_i and ε_i are the same, the maximum melting mass per unit volume Μ_<max> in equilibrium is independent of the snow particle diameter. A figure was presented for the relation Μ_<max>-Τ_i,C_<mi>,ε_i.
一般社団法人日本機械学会の論文
1990-11-25