Single bubble growth in saturated pool boiling of binary mixtures
作者： Han Choon Lee , Jeongbae Kim , Byung Do Oh , Moo Hwan Kim
DOI: 10.1016/J.IJMULTIPHASEFLOW.2004.05.007
关键词: Boiling 、 Heat transfer coefficient 、 Rate of heat flow 、 Heat flux 、 Nucleate boiling 、 Dimensionless quantity 、 Heat transfer 、 Bubble 、 Materials science 、 Thermodynamics
摘要: Abstract Nucleate pool boiling experiments for binary mixtures, which are consisted of R11 and R113, were performed with constant wall temperature condition. Results mixtures also compared pure fluids. A microscale heater array Wheatstone bridge circuits used to maintain the heating surface obtain heat flow rate measurements high temporal spatial resolutions. Bubble growth images captured using a high-speed CCD camera synchronized measurements. The departure time was longer than that fluids, had higher onset nucleate (ONB) In asymptotic region, bubble proportional value between t 1/6 1/4 . behavior analyzed permit comparisons fluids at same scale dimensionless parameters. There no discernible difference in given ONB temperature. And radius well predicted within ±30% error. minimum transfer coefficient occurred near maximum | y − x value, average required flux during did not depend on mass fraction as more volatile component mixtures. Finally, results showed greatest effect reducing coefficient.
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