融雪を伴う熱交換器の特性 : 第2報,降雪時の融雪について

The characteristics of a heat exchanger for the melting of falling snow were investigated theoretically and experimentally. The perfect melting condition and the melting efficiency were related to the number of transfer units of the heat exchanger and two dimensionless parameters. The calculated results for the perfact melting condition and the melting efficiency were in agreement with the results obtained from the field experiments of the melting of falling snow. The melting efficiency of piled snow was compared with that of falling snow. It was found that the melting efficiency of the former was higher than that of the latter because the piled snow acts as an insulator during melting.