Saturated pool boiling mechanisms during single bubble heat transfer: Comparison at two wall superheats

被引：0
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作者：
Kim, Jungho
Demiray, Fatih
Yaddanapudi, Nagaraja
机构：
[1] University of Maryland, Department of Mechanical Engineering, College Park, MD 20742, United States
[2] Metasensors, Rockville, MD 20850, United States
来源：
American Society of Mechanical Engineers, Heat Transfer Division, (Publication) HTD | 2000年 / 366卷
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摘要：
A study of single bubbles growing on a microscale heater array kept at nominally constant temperature was performed. The behavior of bubbles nucleating at a single site at two different temperatures (22.5 K and 27.5 K superheat) is compared for saturated pool boiling of FC-72 at 1 atm. It is concluded that energy is transferred from the surface through similar heat transfer mechanisms at both superheats. Microlayer evaporation was observed to play a minor role in the overall heat transfer, with microconvection/transient conduction being the dominant mechanism. Evaluation of various heat transfer models are made.
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页码：31 / 37
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