析出層が付着した銅伝熱面上でのプール核沸騰時のドライパッチ挙動と伝熱面温度分布の同時計測

抄録

Observation of a dry patch and measurement of heat transfer surface temperature and heat flux distributions during nucleate boiling in shallow water pool was performed to clarify the critical heat flux (CHF) mechanism using the heat transfer surface with deposition layers. It was shown that the dry patch generated by the evaporation, spread and caused the burnout of the heat transfer surface. In addition, similar heat transfer surface temperature and heat flux distributions were observed at the burnout in a usual depth pool nucleate boiling experiment. The result means that the spread of the dry patch is one of the important phenomena in the CHF mechanism for nanofluids.