水平伝熱面における核沸騰について(第5報) : 表面汚損の影響

概要

論文の詳細を見る
Vapour bubbles on metallic heating surface leave ring-shaped scale deposits due to salt slightly contained in the boiling water. These deposits promote the nucleation of vapour bubbles. If we repeat increasing and decreasing of heat flux alternately, the generation of bubbles increases due to the mutual action between bubbles and deposits, and consequently surface contamination increases. We studied effect of the contamination on heat transfer to boiling water experimentally and found relation between heat transfer and foaming ability due to the contamination. We analysed results of our experiment and derived several formulae concerning coefficient of heat transfer using the term of foaming ability. Further we compared our formulae with those obtained by other authors and pointed out the cause of wide dispersion of the values of coefficient of heat transfer.
一般社団法人日本機械学会の論文
1952-12-05