TY - JOUR
T1 - Improvement of cooling performance for electronic devices by nucleate boiling of immisible mixtures
AU - Okayama, Satoshi
AU - Iwata, Keisuke
AU - Shinmoto, Yasuhisa
AU - Ohta, Haruhiko
N1 - Publisher Copyright:
© Published under licence by IOP Publishing Ltd.
PY - 2016/10/21
Y1 - 2016/10/21
N2 - The employment of immiscible mixtures in nucleate boiling improves the cooling performance drastically. Increase of CHF is possible by high subcooling of less-volatile liquid compressed by high-vapor pressure of more-volatile component. In addition, the reduction of surface temperature from that of pure less-volatile liquid is resulted from the co-existed vapor of more-volatile component. And the increase of pressure above the atmospheric keeping low liquid temperature is possible to prevent the mixing of incondensable gases. Furthermore, boiling can be initiated at lower surface temperature, which is required for the cooling of e.g. automobile inverters accompanied by large variation of thermal load. The performance of immiscible mixtures in nucleate boiling are summarized with reference to new data for Novec7100/water and FC72/ethanol and existing data obtained by the present authors.
AB - The employment of immiscible mixtures in nucleate boiling improves the cooling performance drastically. Increase of CHF is possible by high subcooling of less-volatile liquid compressed by high-vapor pressure of more-volatile component. In addition, the reduction of surface temperature from that of pure less-volatile liquid is resulted from the co-existed vapor of more-volatile component. And the increase of pressure above the atmospheric keeping low liquid temperature is possible to prevent the mixing of incondensable gases. Furthermore, boiling can be initiated at lower surface temperature, which is required for the cooling of e.g. automobile inverters accompanied by large variation of thermal load. The performance of immiscible mixtures in nucleate boiling are summarized with reference to new data for Novec7100/water and FC72/ethanol and existing data obtained by the present authors.
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U2 - 10.1088/1742-6596/745/3/032073
DO - 10.1088/1742-6596/745/3/032073
M3 - Conference article
AN - SCOPUS:84995481712
SN - 1742-6588
VL - 745
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
IS - 3
M1 - 032073
T2 - 7th European Thermal-Sciences Conference, Eurotherm 2016
Y2 - 19 June 2016 through 23 June 2016
ER -