Kyushu University
Kyushu University
Kyushu University
Kyushu University
Kyushu University
Kyushu University
National Institute of Advanced Industrial Science and Technology
出版者
宇宙航空研究開発機構宇宙科学研究本部
出版者（英）
Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)
雑誌名
宇宙利用シンポジウム
雑誌名(英)
Space Utilization Research: Proceedings of Space Utilization Symposium
The Twenty-fifth Space Utilization Symposium (January 14-15, 2009: ISAS/JAXA Sagamihara, Japan)
抄録（英）
To develop high-performance space thermal management systems with boiling phenomena, the heat transfer characteristics in nucleate pool boiling of binary mixtures on a horizontal surface were investigated using three different mixtures 1-Propanol/Water, 2-Propanol/Water and Water/Ethylene glycol at the saturated state under atmospheric pressure. For 1-Propanol/Water and 2-Propanol/Water, increase in the heat transfer coefficients was confirmed while the critical heat flux values are decreased at very low concentration of alcohol. The existence of Marangoni effect on the observed heat transfer enhancement was emphasized. A definition of Marangoni number was proposed to take account of the Marangoni effect by using the concentration difference between vapor-liquid interface underneath bubble and bulk liquid.
宇宙用高性能冷却システムの開発を目的とした混合媒体の核沸騰における伝熱促進効果に関する研究
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