Experimental study on compact plate loop heat pipe

被引：0
作者：
Tian Y. [1 ,2 ]
Zhang H. [1 ]
Xu H. [1 ]
Tian C. [1 ,2 ]
机构：
[1] Key Laboratory of Science and Technology on Space Energy Conversion, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing
[2] University of Chinese Academy of Sciences, Beijing
来源：
Huagong Xuebao/CIESC Journal | 2021年 / 72卷 / 06期
关键词：
Compact; Evaporation; Flat-over evaporator; Heat transfer; Loop heat pipe; Porous media;
D O I：
10.11949/0438-1157.20201452
中图分类号：
学科分类号：
摘要：
Loop heat pipes (LHP) have great application prospects in the cooling of electronic elements duo to their compactness and high efficiency. This paper designed a compact LHP with capillary core flat-over evaporator and investigated its start-up and heat transfer performance under various conditions experimentally. The results show that a higher heating power and higher refrigerant charge are beneficial with the LHP starts up stably, while it happens oscillation during the start-up process with low heat load and charge ratio. As for the heat transfer performance, there is an optimal refrigerant filling ratio corresponding to the heat load where the LHP shows the best cooling performance. The optimal filling ratio is small when the heat load is relatively low, and the performance will be better if the refrigerant charge is relatively large under a condition with high heat load. © 2021, Editorial Board of CIESC Journal. All right reserved.
引用
收藏
页码：3288 / 3295
页数：7
相关论文
共 32 条
  • [21] Singh R, Akbarzadeh A, Dixon C, Et al., Miniature loop heat pipe with flat evaporator for cooling computer CPU, IEEE Transactions on Components and Packaging Technologies, 30, 1, pp. 42-49, (2007)
  • [22] Maydanik Y F, Pastukhov V G, Chernysheva M A., Development and investigation of a miniature copper-acetone loop heat pipe with a flat evaporator, Journal of Electronics Cooling and Thermal Control, 5, 4, pp. 77-88, (2015)
  • [23] Zhou G H, Li J, Lv L., An ultra-thin miniature loop heat pipe cooler for mobile electronics, Applied Thermal Engineering, 109, pp. 514-523, (2016)
  • [24] Zhang J J, Wu J Y, Cai A F., Investigation on performance of flat loop heat pipe with longitudinal replenishment under gravity-assisted condition, Chinese Journal of Refrigeration Technology, 38, 1, pp. 7-11, (2018)
  • [25] Gai D X, Liu Z C, Liu W, Et al., Experimental study of a gravity-assisted plate type of loop heat pipe, Journal of Engineering for Thermal Energy and Power, 25, 2, pp. 196-201, (2010)
  • [26] Gai D X., Experimental investigation and system simulation of miniature loop heat pipe with flat evaporator, (2009)
  • [27] Kiseev V M, Vlassov V V, Muraoka I., Experimental optimization of capillary structures for loop heat pipes and heat switches, Applied Thermal Engineering, 30, 11, pp. 1312-1319, (2010)
  • [28] Wang S F, Zhang W B, Zhang X F, Et al., Study on start-up characteristics of loop heat pipe under low-power, International Journal of Heat and Mass Transfer, 54, 4, pp. 1002-1007, (2011)
  • [29] Maydanik Y, Vershinin S, Chernysheva M, Et al., Investigation of a compact copper-water loop heap pipe with a flat evaporator, Applied Thermal Engineering, 31, 16, pp. 3533-3541, (2011)
  • [30] Li J, Wang D M, Peterson G P., Experimental studies on a high performance compact loop heat pipe with a square flat evaporator, Applied Thermal Engineering, 30, 6, pp. 741-752, (2010)
1234