Pool boiling heat transfer in microgravity

J. F. Zhao, N. Yan, J. Li, Z. D. Li, W. R. Hu, Haruhiko Ohta

研究成果: Chapter in Book/Report/Conference proceedingConference contribution


The pool boiling heat transfer of FC-72 on a plain plate with a heating area of 15*15 mm2 in different pressure and subcooling has been studied experimentally both in normal gravity on the ground and in microgravity aboard the Chinese recoverable satellite SJ-8. A quasi-steady heating method is adopted, in which the heating voltage is controlled as an exponential function with time. Three modes of heat transfer, namely single-phase natural convection, nucleate boiling, and transition boiling, are observed, while the nucleate pool boiling are the major subject for discussion in the present paper. In normal gravity, the present data is compared with those obtained by other researchers, and a satisfactory agreement is evident and warrants reasonable confidence in the data. Compared with terrestrial experiments, the boiling curves in microgravity are considerably gentle, and CHF is no more than 40% of that in terrestrial condition. In microgravity, influences on boiling curves of the pressure and subcooling are similar with those in normal gravity, namely that the heat transfer coefficient and CHF will increase with subcooling for the same pressure, and that they will also increase with pressure for the same subcooling. Copyright IAF/IAA. All rights reserved.

ホスト出版物のタイトルInternational Astronautical Federation - 58th International Astronautical Congress 2007
出版ステータス出版済み - 12 1 2007
イベント58th International Astronautical Congress 2007 - Hyderabad, インド
継続期間: 9 24 20079 28 2007


その他58th International Astronautical Congress 2007

All Science Journal Classification (ASJC) codes

  • Space and Planetary Science
  • Aerospace Engineering

フィンガープリント 「Pool boiling heat transfer in microgravity」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。