Performance of a passive heat sink using stearic acid based composite as phase change material

被引：0
|
作者：
Zhao L. [1 ]
Xing Y. [1 ]
Liu X. [1 ]
Luo Y. [1 ]
Rui Z. [1 ]
机构：
[1] School of Aeronautic Science and Engineering, Beihang University, Beijing
来源：
Beijing Hangkong Hangtian Daxue Xuebao/Journal of Beijing University of Aeronautics and Astronautics | 2019年 / 45卷 / 05期
关键词：
Copper foam; Passive heat sink; Phase change material; Stearic acid; Thermal management; Two temperature energy equation;
D O I：
10.13700/j.bh.1001-5965.2018.0513
中图分类号：
学科分类号：
摘要：
The phase change material based passive heat sink is widely applied in the fields of aerospace and military equipment. To address the thermal management of electronic chip with high heat flux, the single temperature energy equation and the two temperature energy equation were applied to simulate the thermal management performance of the copper foam/stearic acid based heat sink, and their accuracy were validated by the lab-scale experiment. By combining with the thermal properties of grapheme nanoplatelets/stearic acid composite phase change material established by EMT based on Maxwell-Garnett model, the influence of different composition of thermal conductivity enhancement on the thermal performance of the heat sink was investigated. And the effect of the ambient temperature was studied. The results show that the two temperature energy equations can simulate more accurately when the heat flux of the chip is higher. When the volume fraction of the thermal conductivity enhancer is fixed, increasing pore density of copper foam has few improvement on the thermal management performance, while copper foam with GnP can effectively improve the thermal management performance of the heat sink. The serious change of ambient temperature can play an important role in the managed temperature and temperature control time. © 2019, Editorial Board of JBUAA. All right reserved.
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页码：970 / 979
页数：9
相关论文
共 29 条
  • [21] Tian Y., Zhao C.Y., A numerical investigation of heat transfer in phase change materials (PCMs) embedded in porous metals, Energy, 36, 9, pp. 5539-5546, (2011)
  • [22] Feng S.S., Shi M., Li Y.F., Et al., Pore-scale and volume-averaged numerical simulations of melting phase change heat transfer in finned metal foam, International Journal of Heat & Mass Transfer, 90, pp. 838-847, (2015)
  • [23] Hu X., Patnaik S.S., Modeling phase change material in micro-foam under constant temperature condition, International Journal of Heat & Mass Transfer, 68, 1, pp. 677-682, (2014)
  • [24] Zhang P., Meng Z.N., Zhu H., Et al., Melting heat transfer characteristics of a composite phase change material fabricated by paraffin and metal foam, Applied Energy, 182, pp. 1971-1983, (2015)
  • [25] Fang X., Fan L.W., Ding Q., Et al., Increased thermal conductivity of eicosane-based composite phase change materials in the presence of graphene nanoplatelets, Energy & Fuels, 27, 7, pp. 4041-4047, (2013)
  • [26] Khodadadi J.M., Fan L., Babaei H., Thermal conductivity enhancement of nanostructure-based colloidal suspensions utilized as phase change materials for thermal energy storage: A review, Renewable & Sustainable Energy Reviews, 24, 10, pp. 418-444, (2013)
  • [27] Harish S., Orejon D., Takata Y., Et al., Thermal conductivity enhancement of lauric acid phase change nanocomposite with graphene nanoplatelets, Applied Thermal Engineering, 80, pp. 205-211, (2015)
  • [28] Das N., Kohno M., Takata Y., Et al., Enhanced melting behavior of carbon based phase change nanocomposites in horizontally oriented latent heat thermal energy storage system, Applied Thermal Engineering, 125, pp. 880-890, (2017)
  • [29] Krieger I.M., Dougherty T.J., A mechanism for non-newtonian flow in suspensions of rigid spheres, Journal of Rheology, 3, 1, pp. 137-152, (1959)
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