強制対流表面沸騰の熱伝達について

概要

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There are many correlations on the saturated boiling, but few suitable correlations on the subcooled boiling heat transfer with forced convection. In this paper, the experimental results on the subcooled boiling heat transfer of water in the vertical rectangular channel with forced convection under the atmospheric pressure are reported and the correlation based on the experimental data is proposed, namely q_t=q_c+q_b where, q_t : total heat flux of the subcooled boiling with forced convection, kcal/m^2h, q_c : convective heat flux, kcal/m^2h, q_b : boiling heat flux, kcal/m^2h, and for the condition at atmospheric pressure, q_b=4.53ΔT_<sat>^<3.6> The boiling heat flux q_b is not affected by velocity and subcooling, but is dependent on the system pressure. The relation is represented by an equation as shown below on the basis of various experimental data of the subcooled boiling with forced convection which have been reported by previous investigators. q_b=4.50e^<P/20>ΔT<sat>^<3.5> where, P : absolute pressure of system, ata, ΔT_<sat> : degrees of superheated, ℃.
一般社団法人日本機械学会の論文
1962-11-25