Thermal Management System based on Phase Change Slurry Liquid-cooling for Space Lithium Battery

Xingping Yang ； Fenfen Hu ； Weijie Yan

《International Core Journal of Engineering》 8卷3期 (2022/03) Pp. 577-586

https://doi.org/10.6919/ICJE.202203_8(3).0070

摘要

Too high temperature and too large average temperature difference in battery pack will lead to battery life shorten, reduce its energy efficiency and with other problems. In order to solve the problem of thermal management of spacecraft lithium battery pack, a thermal management method of spacecraft lithium battery pack based on the combination of phase change slurry (PCS) and cooling plate was proposed in this paper. A three-dimensional thermal management model of PCS liquid cooling and cooling plate was established, the cooling effect of PCS and other working fluid under different gravity conditions was studied by numerical simulation, and the influence of mass flow rate of PCS on the cooling effect was investigated. The results showed that the liquid cooling at low flow rate in the spacecraft battery was the best when the mass flow rate was lower than 3.5 E-4 kg/s, the cooling effect of PCS was the best when the mass flow rate was lower than 3.5 E-4 kg/s, both maximum temperature and temperature uniformity are the best choice. The scheme in this paper not only can control the whole temperature field of the battery, but also does not need too much energy because of the low flow rate, which is in line with the original intention of low energy consumption and high cooling effect of the battery thermal management, it will be a certain reference significance for the design of Spacecraft Battery Thermal Management system(BTMS).

關鍵字

Microgravity ； Phase Change Slurry ； Battery Thermal Management System

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