Critica1 heat fluxes are obtained in subcooled pool boiling of mix加 res with alcohol and water by burning out stain 置 ess st I plate heater . lhe critical heat fluxes change with mass concentration of alcohol . For 【 he mixtures of poLyhydric alcohols ,1 − butanol and 2 ・ propanol , the maximum criIical heat fluxes are about 200 percent higher than that of water . In subcoolOd flow boiling of elhanol −water and 1・ butanQl − water mixtures in a horizontal r 【 angular channel , microbubble emission bo埀 1ing occurs in transition boijing and the heat fiuxes a 【e abouI 50 percent higher thIm water at same superheat of heating surface . The maximum heaI伽 xes of the mixtures reach 8 MWm2 at 40K of liquid subcooling and O. 5mls ofliquid velocily . Key Words :Bina ワ miXture ・ CHE F ' OW う 0 "' η & ∫ 謬 わ COO "π 8, 搨「 icroう μ 勧 ' θ 8配 ' ∬ ' 0 π わ0 ' "π 8
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