逆溶解液による沸騰の抑制

概要

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For boiling heat transfer, it is known that some high-polymer solution of 60〜500 ppm density exhibits enhanced heat transfer with decrease in turbulent frictional resistance and surface tension. On the other hand, some high-polymer solution of 20〜30 percent density which is used for heat treatment ehibits the supression of boiling heat transfer. However, the mechanisum of heat transfer supression was not apparent. For the later polymer, a nonionic surface-active agent which ehibits a cloud point, we obtained the feature of heat suppresion by measuring the boiling curve in a nucleate region. By observation near the heated surface, we found the formation of high-density polymer solution near the heated surface, which caused high incipient temperature of nucleate boiling and suppressed the departure of vapor bubbles.
一般社団法人日本機械学会の論文
1996-01-25