混合制冷工质核态沸腾的传热研究

CIESC Journal

• TRANSPORT PHENOMEN A & FLUID MECHANICS • 上一篇下一篇

混合制冷工质核态沸腾的传热研究

赵耀华^a; 刁彦华^a; 鹤田隆治^b; 西川日出男^b

^a Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100080, China
^b Department of Mechanical Engineering, Kyushu Institute of Technology, Kitakyushu 804-8550, Japan

收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2004-06-28 发布日期:2004-06-28
通讯作者: 赵耀华

Heat Transfer in Nucleate Pool Boiling of Binary and Ternary Refrigerant Mixtures

ZHAO Yaohua^a; DIAO Yanhua^a; Takaharu Tsuruta^b; Nishikawa Hideo^b

^a Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100080, China
^b Department of Mechanical Engineering, Kyushu Institute of Technology, Kitakyushu 804-8550, Japan

Received:1900-01-01 Revised:1900-01-01 Online:2004-06-28 Published:2004-06-28
Contact: ZHAO Yaohua

摘要/Abstract

摘要： Heat transfer coefficients in nucleate pool boiling were measured on a horizontal copper surface for refrigerants, HFC-134a, HFC-32, and HFC-125, their binary and ternary mixtures under saturated conditions at 0.9MPa. Compared to pure components, both binary and ternary mixtures showed lower heat transfer coefficients.This deterioration was more pronounced as heat flux was increased. Experimental data were compared with some empirical and semi-empirical correlations available in literature. For binary mixture, the accuracy of the correlations varied considerably with mixtures and the heat flux. Experimental data for HFC-32/134a/125 were also compared with available correlated equation obtained by Thome. For ternary mixture, the boiling range of binary mixture composed by the pure fluids with the lowest and the medium boiling points, and their concentration difference had important effects on boiling heat transfer coefficients.

关键词: 制冷剂;气体分离技术;加热转移模式;混合物;温度

Abstract: Heat transfer coefficients in nucleate pool boiling were measured on a horizontal copper surface for refrigerants, HFC-134a, HFC-32, and HFC-125, their binary and ternary mixtures under saturated conditions at 0.9MPa. Compared to pure components, both binary and ternary mixtures showed lower heat transfer coefficients.This deterioration was more pronounced as heat flux was increased. Experimental data were compared with some empirical and semi-empirical correlations available in literature. For binary mixture, the accuracy of the correlations varied considerably with mixtures and the heat flux. Experimental data for HFC-32/134a/125 were also compared with available correlated equation obtained by Thome. For ternary mixture, the boiling range of binary mixture composed by the pure fluids with the lowest and the medium boiling points, and their concentration difference had important effects on boiling heat transfer coefficients.

Key words: pool boiling heat transfer, nucleate pool boiling, HFC-134a, HFC-32, HFC-125

赵耀华,刁彦华,鹤田隆治,西川日出男. 混合制冷工质核态沸腾的传热研究[J]. CIESC Journal.

ZHAO Yaohua,DIAO Yanhua,Takaharu Tsuruta,Nishikawa Hideo. Heat Transfer in Nucleate Pool Boiling of Binary and Ternary Refrigerant Mixtures[J]. .

混合制冷工质核态沸腾的传热研究

Heat Transfer in Nucleate Pool Boiling of Binary and Ternary Refrigerant Mixtures

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