Two-phase flow patterns of a top heat mode closed loop oscillating heat pipe with check valves (THMCLOHP/CV)

被引：5
|
作者：
Thongdaeng, S. [1 ]
Bubphachot, B. [1 ]
Rittidech, S. [1 ]
机构：
[1] Mahasarakham Univ, Heat Pipe & Thermal Tools Design Res Unit HTDR, Fac Engn, Maha Sarakham 44150, Thailand
来源：
JOURNAL OF APPLIED MECHANICS AND TECHNICAL PHYSICS | 2016年 / 57卷 / 06期
关键词：
two-phase flow pattern; closed loop oscillating heat pipe; top heat mode; THERMAL PERFORMANCE; VISUALIZATION; REGIMES;
D O I：
10.1134/S0021894416060183
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
This research is aimed at studying the two-phase flow pattern of a top heat mode closed loop oscillating heat pipe with check valves. The working fluids used are ethanol and R141b and R11 coolants with a filling ratio of 50% of the total volume. It is found that the maximum heat flux occurs for the R11 coolant used as the working fluid in the case with the inner diameter of 1.8 mm, inclination angle of -90au broken vertical bar, evaporator temperature of 125au broken vertical bar C, and evaporator length of 50 mm. The internal flow patterns are found to be slug flow/disperse bubble flow/annular flow, slug flow/disperse bubble flow/churn flow, slug flow/bubble flow/annular flow, slug flow/disperse bubble flow, bubble flow/annular flow, and slug flow/annular flow.
引用
收藏
页码：1101 / 1107
页数：7
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