Simulation on cooling performance characteristics of a refrigerant-cooled active thermal management system for lithium ion batteries

•Numerical models of passive and active two-phase TMSs are developed.•Numerical results show good agreement with experimental results and reference data.•The performance of active TMS is greatly affected by the refrigerant temperature.•Both TMSs show good performance under mild and stressful operati...

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Bibliographic Details
Published in:International journal of heat and mass transfer 2019-06, Vol.135, p.131-141
Main Authors: Park, Seonggi, Jang, Dong Soo, Lee, DongChan, Hong, Seong Ho, Kim, Yongchan
Format: Article
Language:English
Subjects:
Computer simulation
Cooling
Cooling performance
Cooling rate
Electric vehicles
Hybrid electric vehicles
Lithium
Lithium ion battery
Lithium-ion batteries
Mass flow rate
Mathematical models
PCM-based passive TMS
Phase change materials
Product design
Rechargeable batteries
Refrigerant-cooled active TMS
Refrigerants
Thermal management
Thermal management system
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Description
Summary:•Numerical models of passive and active two-phase TMSs are developed.•Numerical results show good agreement with experimental results and reference data.•The performance of active TMS is greatly affected by the refrigerant temperature.•Both TMSs show good performance under mild and stressful operating conditions.•In the cyclic operation, the active TMS has better performance than the passive TMS. In this study, numerical models of an active thermal management system (TMS) using a two-phase refrigerant and a passive TMS using phase change material (PCM) for lithium ion batteries in electric vehicles (EVs) and hybrid electric vehicles (HEVs) are developed. The models are validated by comparing the predictions with the measured data. The effects of the refrigerant temperature and mass flow rate on the cooling performance of the refrigerant-cooled active TMS are analyzed. Moreover, the cooling performance characteristics of the refrigerant-cooled active and PCM-based passive TMSs are compared under various single discharge and cyclic operating conditions. The passive and active TMSs show excellent performances under mild and stressful operating conditions where discharge occurs. However, in the cyclic operation where charge and discharge are merged, the refrigerant-cooled active TMS shows better cooling performance than the PCM-based passive TMS.
ISSN:0017-9310
1879-2189
DOI:10.1016/j.ijheatmasstransfer.2019.01.109