Experimental study on phase change spray cooling

被引：45
|
作者：
Hou, Yu [1 ,2 ]
Liu, Xiufang [2 ,3 ]
Liu, Jionghui [2 ]
Li, Mengjing [2 ]
Pu, Liang [2 ]
机构：
[1] Xi An Jiao Tong Univ, State Key Lab Multiphase Flow Power Engn, Xian 710049, Peoples R China
[2] Xi An Jiao Tong Univ, Sch Energy & Power Engn, Xian 710049, Peoples R China
[3] Sch Mech & Power Engn, Henan Polytech Univ, Jiaozuo 454000, Peoples R China
来源：
EXPERIMENTAL THERMAL AND FLUID SCIENCE | 2013年 / 46卷
基金：
中国博士后科学基金;
关键词：
Spray cooling; Phase change heat transfer; Closed-cycle; Critical heat flux; CRITICAL HEAT-FLUX; SURFACES; WATER; CHF;
D O I：
10.1016/j.expthermflusci.2012.11.023
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Phase change spray cooling is known as an effective method to remove heat from high-power electronic devices due to its high heat transfer efficiency and high critical heat flux (CHF). In this study, a closed-cycle spray cooling system with R22 as the coolant was designed and built, and the system cooling performance including the heat transfer coefficient, cooling surface temperature and CHF was experimentally investigated with nozzle inlet pressure in the range of 0.6-1.0 MPa. The system shows a great capability in removing high heat flux from the cooling surface at a relatively low temperature. As the nozzle inlet pressure increases, the value of CHF first increases and then decreases slightly. The maximum CHF of 276.1 W cm(-2) is achieved at the nozzle inlet pressure of 0.8 MPa and the corresponding cooling surface temperature is 26.8 degrees C. (c) 2012 Elsevier Inc. All rights reserved.
引用
收藏
页码：84 / 88
页数：5
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