サブクール膜沸騰下限界に関する研究

概要

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An experimental study has been conducted to investigate the low limit of film boiling in subcooled water. Test specimens selected for the present experiments were a silver cylinder (20mm in diameter and 70mm long) and a silver sphere (30mm in diameter), whose heat transfer surfaces were coated with a thin refractory paint. The heated specimen was plunged into the subcooled water under atmospheric pressure. The subcooling was varied from 0 to 85 K, and the coating thickness ranges between 0 and 29μm. In the uncoated cylinder the minimum film boiling temperature T_<min> and heat effect of subcooling on T_<min> while the q_<min> increased with higher subcooling. The paint coating produced a much greater enhancement in T<min> for the subcooled boiling than that for the saturated boiling.
一般社団法人日本機械学会の論文
1988-10-25