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Stream/Area:
-
Subject:
-
Paper ID:
IJSREM65714
Volume:
10 |
6 |
Jun 2026
Pages:
1-4
Publication Frequency:
Monthly (12 issues per year)
License:International Journal of Scientific Research in Engineering and Management follows the Creative Commons Attribution 4.0 (CC BY 4.0) License, allowing free use and distribution with proper attribution.
Department of Mechanical Engineering
Priyadarshini College of Engineering, Nagpur.
Department of Mechanical Engineering
Priyadarshini College of Engineering, Nagpur.
The thermal performance of lithium-ion battery packs is a critical factor affecting the safety, reliability, cycle life, and operational efficiency of electric vehicles (EVs). Excessive temperatures and non-uniform temperature distributions can accelerate battery degradation and increase the risk of thermal runaway. This study presents a Computational Fluid Dynamics (CFD) investigation of natural and forced air cooling strategies for a 25P17S lithium-ion battery pack operating under high discharge conditions. Four cooling configurations were analyzed, including natural convection and forced convection with inlet air velocities of 0.5 m/s, 1.0 m/s, and 1.5 m/s. Temperature distribution, hotspot formation, and thermal uniformity were evaluated to determine the effectiveness of each cooling strategy. The results indicate that natural convection produced inadequate heat dissipation, resulting in a maximum battery temperature of approximately 94°C. Increasing airflow velocity progressively improved thermal performance by reducing hotspot intensity and enhancing temperature uniformity throughout the battery pack. Among the investigated cases, the 1.5 m/s airflow condition demonstrated the best cooling performance, reducing the estimated peak temperature to approximately 78°C and significantly decreasing temperature gradients across the pack. The study demonstrates that forced air cooling can provide an effective and economical thermal management solution for medium-power electric vehicle battery applications.
KEYWORDS
Natural convection cooling was ineffective for removing heat from the preheated lithium-ion battery pack and resulted in persistent thermal hotspots. Increasing airflow velocity significantly enhanced convective heat transfer and accelerated thermal recovery.
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Publication Date
6/30/2026
Peer Review Type
Double-Blind Peer Review
Review Rounds: 2
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