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A design optimization study of an air-cooling battery thermal management system for electric vehicles


Zhao, G and Wang, X and Negnevitsky, M and Zhang, H, A design optimization study of an air-cooling battery thermal management system for electric vehicles, Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering pp. 1-12. ISSN 0954-4089 (2022) [Refereed Article]

Copyright Statement

IMechE 2022

DOI: doi:10.1177/09544089221116418


Air cooling is a highly cost-effective method for the battery thermal management systems due to its simple structure, high reliability and low maintenance cost. Different from other designs of only a single inlet/outlet structure in the literature, an air-cooling battery thermal management system with multiple inlets/outlets design was proposed in this paper. The effects of inlet/outlet positions and dimensions on the air-cooling battery thermal management system performance were thoroughly evaluated and compared. The optimal inlet/outlet position and dimension were identified based on the maximum battery temperature and the temperature uniformity in the air cooling field. The results showed that the symmetrical double inlets/outlets design (Design 4) delivered the top temperature uniformity with the lowest energy consumption. During 1C discharging at 2 m/s inlet airflow, the maximum temperature and temperature difference of the Design 4 were 1.01 K and 2.24 K lower than those of the basic Design 0 in addition to a pressure difference reduction of 7.85 Pa. Based on the optimal Design 4, 0.03 m outlet width could further reduce the maximum temperature and temperature difference by 0.47 K and 0.28 K than the worst 0.05 m design. Furthermore, 52 additional simulations under different operating conditions had proven that the superb cooling performance of the optimal design during mild discharging operations (0.51C).

Item Details

Item Type:Refereed Article
Keywords:electric vehicle, cylindrical lithium-ion battery cell, battery thermal management system, air cooling, field synergy principle
Research Division:Engineering
Research Group:Mechanical engineering
Research Field:Energy generation, conversion and storage (excl. chemical and electrical)
Objective Division:Energy
Objective Group:Energy storage, distribution and supply
Objective Field:Energy systems and analysis
UTAS Author:Zhao, G (Mr Gang Zhao)
UTAS Author:Wang, X (Professor Xiaolin Wang)
UTAS Author:Negnevitsky, M (Professor Michael Negnevitsky)
ID Code:151567
Year Published:2022
Funding Support:Australian Research Council (LP170100879)
Deposited By:Engineering
Deposited On:2022-08-01
Last Modified:2022-09-07

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