Pool Boiling Heat Transfer in Microgravity : Experiments with CFC-113 and Water Utilizing a Drop Shaft Facility
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概要
- 論文の詳細を見る
Microgravity pool boiling experiments were carried out utilizing the drop shaft at the Japan Microgravity Center, which enables control of microgravity to within one-ten-thousandth of terrestrial gravity for a period of 10 seconds. Vapor bubbles were generated on a Joule-heated stainless steel or ITO film backed with a thin alumina or glass substrate, which was immersed in a pool of subcooled or saturated liquid at atmospheric pressure. The CHF (critical heat flux) to CFC-113 was lowered, in microgravity, to one-fifth of that achieved under the normal terrestrial condition. In contrast, the CHF to water remained more than one-half that achieved under the terrestrial condition. This difference in the gravity dependence of CHF is presumably ascribable to the difference in the frequency of bubble detachment from the heater surface between CFC-113 and water in microgravity, which is dependent on the difference in thermophysical properties, particularly the surface tension and the heat of vaporization, between the two fluids.
- 一般社団法人日本機械学会の論文
- 1996-11-15
著者
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NAGASHIMA Akira
Department of Chest Surgery, Kitakyushu Municipal Medical Center
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Oka Toshiharu
Research Institute Ishikawajima-harima Heavy Industries Co. Ltd
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Abe Yoshiyuki
Energy Fundamentals Division, Electrotechnical Laboratory, Umezono, Tsukuba
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Mori Yasuhiko
Department of Mechanical Engineering, Keio University
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Nagashima A
Department Of Chest Surgery Kitakyushu Municipal Medical Center
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Abe Yoshiyuki
Energy Fundamentals Division Electrotechnical Laboratory Umezono Tsukuba
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Abe Yoshiyuki
Energy Electronics Research Institute Aist
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Mori Y
Department Of Mechanical Engineering Keio University
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Nagashima Akira
Department Of Chest Surgery Kitakyushu Municipal Medical Center
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Mori Yasuhiko
Department Of Mechanical Engineering Faculty Of Engineering Keio University
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Nagashima Akira
Department Of Chest Surgery And Pathology Kitakyushu Municipal Medical Center
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Nagashima Akira
Department of Chemical Engineering, Tokyo Institute of Technology
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MORI Yasuhiko
Department of Chemical Engineering, Kyushu University
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