非共溶性混合媒体のプール沸騰における沸騰冷媒遷移について

抄録

Boiling heat transfer using immiscible mixtures is an innovative cooling method for the cooling of small and large semiconductors operated at high heat flux density. Immiscible liquid mixtures discussed here are composed of more-volatile liquid with higher density and less-volatile liquid with lower density such as combinations of FC-72/Water or Novec7100/Water. To clear the condition of boiling refrigerant transition in pool boiling by immiscible mixtures, the experiments under the conditions of various height of liquid layers are carried out. And a new threshold derived by Helmholtz instability is proposed for the occurrence of boiling refrigerant transition. Experimental results, including data from previous studies, agreed well with newly proposed thresholds.