ヒートポンプ用熱交換器の着霜融解に関する研究 : ワッフルルーバフィン形熱交換器を用いたときの動作流体の流量と温度の影響

概要

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This experimental work was carried out to obtain basic information of melting of frost on a heat exchanger used as a heat pump and air-conditioner. The working fluid of heat exchanger used in this experiment is 50 wt% propylene glycol aqueous-solution. Flow amount G and temperature T_b of the working fluid are in the range of 0.1<G [m^3/hour]<0.2 and 10<T_b [℃]<34 respectively. A melting thermal efficiency η is defined here as the ratio of a net heat for melting to a heat supplied to the heat exchanger until an end time for melting t_c. η strongly depends on t_c, and also t_c is strongly affected by G and T_b. In conclusion it can be found that the heat supplied to the heat exchanger can be utilized with high η when t_c becomes small.
一般社団法人日本機械学会の論文
1989-02-25