211 加熱面への液供給による限界熱流束の向上化に関する研究 : 第二報 : 液供給間隔の影響及び伝熱面近傍流動の検討(O.S.2-3 企業・大学等における熱工学研究の最前線(3))(オーガナイズドセッション2 企業・大学等における熱工学研究の最前線)

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The establishment of high heat removable technology is required in future industrial field. In this study, as a proposal of the high heat removable technology, the enhancement of a critical heat flux -CHF- in pool boiling was investigated by supplying liquid- jets to the heating surface. The effect of distances between liquid-jets on the enhancement of CHF was examined focusing on flow pattern near the heating surface in the present report. Experiments were conducted using a pure copper block and saturated water for pool boiling at atmospheric condition. The distances between the jet-nozzles and the test section were 1, 6 and 15 mm. The adopted inner-diameter of the jet-nozzles was 0.9 or 0.51 mm. The number of the jet-nozzles were one, two and three : the distances between the supplying liquid-jets were infinity, 30 and 15 mm, respectively. The enhancement rate of the critical heat flux related to the flow rate of liquid-jets. These results suggested that the enhancement of critical heat flux was affected additional supplied liquid quantity to the macrolayer on the heating surface.
社団法人日本機械学会の論文
2000-03-10