Heat transfer correlations of forced convective boiling for pure refrigerants in micro-fin tubes

被引：10
|
作者：
Chiou, C. B. [1 ]
Lu, D. C. [2 ]
Chen, C. C. [1 ]
Chu, C. M. [3 ]
机构：
[1] ChungChou Inst Technol, Dept Automat & Control Engn, Yuanlin Changhua 510, Taiwan
[2] Natl Chiao Tung Univ, Dept Mech Engn, Hsinchu 300, Taiwan
[3] ChungChou Inst Technol, Grad Sch Engn Technol, Yuanlin Changhua 510, Taiwan
来源：
APPLIED THERMAL ENGINEERING | 2011年 / 31卷 / 05期
关键词：
Forced convective boiling; Evaporation; Pure refrigerant; Micro-fin; Correlation; HORIZONTAL SMOOTH;
D O I：
10.1016/j.applthermaleng.2010.10.031
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The evaporation heat transfer coefficient of pure refrigerants R-22 and R-124 in micro-fin tubes were measured at the reduced pressure of 0.15, the mass flux from 100 to 400 kg/m(2) s, the flow quality from 0.1 to 0.9, and the heat flux from 5 to 20 kW/m(2). The evaporation heat transfer coefficient of pure refrigerant in micro-fin tube is 1.5-3.0 times higher than that of smooth tube. In this article, the single phase forced convection heat transfer coefficient of micro-fin tube is introduced to predict the evaporation heat transfer coefficient of pure refrigerant in micro-fin tubes. The present correlations provide reasonable agreement with the experimental data. The prediction values mostly fall within +/- 30%. (C) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码：820 / 826
页数：7
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