Welcome to Journal of Automotive Safety and Energy,

Journal of Automotive Safety and Energy ›› 2021, Vol. 12 ›› Issue (3): 380-385.DOI: 10.3969/j.issn.1674-8484.2021.03.013

• Automotive Energy Efficiency and Environment Protection • Previous Articles     Next Articles

Cooling performance simulation of the power battery pack based on straight liquid cooling plate

CAI Senlin1(), WEI Mingshan1,*(), SONG Panpan1, WEI Hongge2   

  1. 1. School of Mechanical and Vehicle, Beijing Institute of Technology, Beijing 100081, China
    2. Beijing Hainachuan Automotive Parts Co., Ltd., Beijing 100081, China
  • Received:2021-05-17 Online:2021-09-30 Published:2021-10-09
  • Contact: WEI Mingshan E-mail:18792738652@163.com;mswei@bit.edu.cn

Abstract:

A liquid cooling plate structure with a parallel non-equal-length channel was proposed to improve the heat dissipation ability of the power battery pack of a commercial vehicle and to reduce the energy consumption of the cooling system of the battery pack. A simulation model of a liquid cooling prismatic lithium-ion battery pack was established to optimize the structure of liquid cooling plate. The results show that the cooling plate not only meets the cooling capacity of the battery pack, but also can effectively control the pressure drop. The pressure drop of the liquid cooling plate decreases by 12.5 kPa, and the maximum temperature and maximum temperature difference in the battery pack decrease by 0.26 ℃ and 0.27 ℃, respectively. Adjustments on the flow rate and temperature of coolants could enhance the heat dissipation capacity of the battery pack to keep the battery pack working within a reasonable temperature range.

Key words: power battery pack, battery thermal management, cooling plate, pressure drop, numerical simulation

CLC Number: