Heat transfer characteristics of refrigerant-oil mixtures flow boiling in a horizontal C-shape curved smooth tube

被引：29

作者：

Hu, Haitao ^{[1
]}

Ding, Guoliang ^{[1
]}

Wei, Wenjian ^{[1
]}

Huang, Xiangchao ^{[1
]}

Wang, Zhence ^{[1
]}

机构：

[1] Shanghai Jiao Tong Univ, Inst Refrigerat & Cryogen, Shanghai 200240, Peoples R China

来源：

INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID | 2010年 / 33卷 / 05期

基金：

中国国家自然科学基金; 中国博士后科学基金;

关键词：

Heat exchanger; Geometry; Heat transfer; Boiling; Mixture; Refrigerant; Oil; Correlation; SMALL-DIAMETER TUBES; TRANSFER PERFORMANCE; LUBRICANT OIL; COILED-TUBE; RETURN BEND; PART I; EVAPORATION; PATTERN; PIPES;

D O I：

10.1016/j.ijrefrig.2010.02.005

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Two-phase heat transfer characteristics of R410A-POE oil mixture and R22-mineral oil mixture flow boiling inside a horizontal C-shape curved smooth tube with an outside diameter of 7.0 mm and a curvature ratio of 60 were investigated experimentally. The test results show that the curvature of C-shape curved smooth tube deteriorates the flow boiling heat transfer, and the ratios of the heat transfer coefficients in C-shape curved smooth tube to those in straight smooth tube for R410A-oil mixture and R22-oil mixture are within 0.46-0.74 and 0.74-0.90, respectively. A correlation to predict the heat transfer coefficients of refrigerant-oil mixtures flow boiling inside C-shape curved smooth tube was developed based on mixture properties of refrigerant-oil, and it could agree with 96% of the experimental data within a deviation of +/- 20%. (C) 2010 Elsevier Ltd and IIR. All rights reserved.

引用

页码：932 / 943

页数：12

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