Studies on Condensation Heat Transfer in Two-phase Closed Thermosyphons

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概要

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• In order to study the effects of shear stress acting on liquid-vapor interface at the condenser of two-phase closed thermosyphons, a simple analysis based on Nusselt's theory of filmwise condensation and heat transfer experiments were carried out. Analysis showed that interfacial shear stress caused by rising vapor makes condensate film thicker and condensation heat transfer coefficient and heat transfer rate decreased. However, according to heat transfer experiments, heat transfer rates increased and became larger than analytical results. To explain these discrepancies qualitatively, flow situations inside the thermosyphon were observed using a glass thermosyphon.

• 宇宙航空研究開発機構の論文

著者

• TSUCHIDA Akira

  First Department of Internal Medicine, faculty of medicine, Hiroshima University

• TSUCHIDA Akira

  Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University

• Tsuchida Akira

  Department Of Mechanical Engineering Seikei University

• Tsuchida Akira

  First Department Of Internal Medicine Faculty Of Medicine Hiroshima University

• Tsuchida Akira

  Department Of Applied Chemistry Gifu University

• MAEZAWA Saburo

  Department of Mechanical Engineering, Seikei University

• TAKUMA Masao

  Department of Mechanical Engineering, University of Alberta Edmonton

• Maezawa Saburo

  Department Of Mechanical Engineering Seikei University

• Tsuchida A

  First Department Of Internal Medicine Faculty Of Medicine Hiroshima University

• Takuma Masao

  Department Of Mechanical Engineering University Of Alberta Edmonton

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