Heat transfer performance of oscillating heat pipe with micro-nano droplets of liquid metal

被引：0
|
作者：
Cui W. [1 ]
Jiang Z. [1 ]
Hao T. [1 ]
Wen R. [1 ]
Ma X. [1 ]
机构：
[1] Institute of Chemical Engineering, Dalian University of Technology, Dalian
来源：
Huagong Jinzhan/Chemical Industry and Engineering Progress | 2022年 / 41卷 / 01期
关键词：
Heat transfer performance; Liquid metal; Micro-nano droplets; Oscillating heat pipes; Surfactant;
D O I：
10.16085/j.issn.1000-6613.2021-0233
中图分类号：
学科分类号：
摘要：
Galinstan, a room temperature liquid metal, combines both the features of liquid and metal. Utilizing the oscillating motion of the mixed working fluids of liquid metal and surfactant solution, a high thermal conductivity mixed liquid metal self-dispersed micro-nano droplets in the oscillating heat pipe (OHP) was formed with high heat transfer performance. 6-turn flat plate oscillating heat pipe with Galinstan and surfactant as the working fluids was investigated visually and experimentally under different liquid metal filling ratios and heat input in this work. The results demonstrated that liquid metal was driven to oscillate with the pressure difference induced by phase change of working fluids and broke up into spherical droplets. It was hard for the droplets to coalescence because of exited surfactant solutions. There were nano-particles with the diameter of 410-520nm, left in the surfactant solutions after the oscillation of liquid metal. When the filling ratios of liquid metal was 20%-25%, the high viscosity and mass of liquid metal spherical droplets hindered the oscillating motion of the mixed working fluids easily and thus increased the thermal resistance of the oscillating heat pipe. When the filling ratios was 5%-10%, the mixed working fluids coupled the high thermal conductivity of the liquid metal and the heat transfer performance was improved effectively and the thermal resistance was reduced by 11.21% at most when the liquid metal filling ratio was 5%. © 2022, Chemical Industry Press Co., Ltd. All right reserved.
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页码：95 / 103
页数：8
相关论文
共 31 条
  • [1] BASTAKOTI D, ZHANG H N, LI D, Et al., An overview on the developing trend of pulsating heat pipe and its performance, Applied Thermal Engineering, 141, pp. 305-332, (2018)
  • [2] HAN X H, WANG X H, ZHENG H C, Et al., Review of the development of pulsating heat pipe for heat dissipation, Renewable and Sustainable Energy Reviews, 59, pp. 692-709, (2016)
  • [3] QU Jian, Oscillating heat pipes: state of the art and applications, Chemical Industry and Engineering Progress, 32, 1, pp. 33-41, (2013)
  • [4] AYEL V, ARANEO L, MARZORATI P, Et al., Visualization of flow patterns in closed loop flat plate pulsating heat pipe acting as hybrid thermosyphons under various gravity levels, Heat Transfer Engineering, 40, 3, pp. 227-237, (2019)
  • [5] LI Xiaojun, QU Jian, HAN Xinyue, Et al., Start-up and heat transfer performance of micro-grooved oscillating heat pipe, CIESC Journal, 67, 6, pp. 2263-2270, (2016)
  • [6] KWON G H, KIM S J., Experimental investigation on the thermal performance of a micro pulsating heat pipe with a dual-diameter channel, International Journal of Heat and Mass Transfer, 89, pp. 817-828, (2015)
  • [7] ZHANG Wang, LU Xiaojian, XU Guoliang, Et al., Flow and heat transfer characteristics of a two-diameter pulsating heat pipe, Journal of Aerospace Power, 35, 11, pp. 2371-2377, (2020)
  • [8] JI Y L, XU C, MA H B, Et al., An experimental investigation of the heat transfer performance of an oscillating heat pipe with copper oxide (CuO) microstructure layer on the inner surface, Journal of Heat Transfer, 135, 7, (2013)
  • [9] HAO T T, MA X H, LAN Z, Et al., Effects of hydrophilic surface on heat transfer performance and oscillating motion for an oscillating heat pipe, International Journal of Heat and Mass Transfer, 72, pp. 50-65, (2014)
  • [10] YU Huiwen, CUI Wenyu, HAO Tingting, Et al., Heat transfer performance of wettability gradient surface oscillating heat pipe, Chemical Industry and Engineering Progress, 39, 11, pp. 4375-4383, (2020)
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