| 제목 |
EV 배터리팩의 냉각면 구성에 따른 냉각 성능 향상 연구
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| 분야 |
기타 |
| 언어 |
Korean |
| 저자 |
염대연(국민대학교), 장시열(국민대학교) |
| Key Words |
Electric vehicle(EV, 전기 자동차), Computational fluid dynamics(CFD,전산 유체역학), C-rate(충ㆍ방전율), Coolant mass flow(냉각수 질량유량), Theraml interface material(TIM, 열계면소재), Dual-sided cooling system(양면 냉각 시스템) |
| 초록 |
With the increase in the adoption of electric vehicles(EVs), interest in the safety and fire risks in EV battery packs has grown significantly, spurring active research on battery thermal management systems, temperature balancing between cells, and battery pack design. Particularly, keeping the maximum temperature of the battery pack and reducing the temperature deviation between cells to within 5°C difference are critical challenges in ensuring the driving range and thermal runaway safety of EVs. This CFD study focuses on the design of a dual-sided cooling system for small EV battery packs to determine its effects on the maximum temperature in the battery pack. The performance of the existing model(bottom liquid cooling) was compared with dual-sided cooling systems(bottom liquid cooling + top liquid cooling and bottom air cooling + top liquid cooling). The computational results confirm that the dual-sided liquid cooling system effectively reduced heat, and minimized temperature deviation between cells. Specifically, the dual-sided system that combines bottom air cooling and top liquid cooling utilizes natural airflow during driving to maintain proper temperatures while reducing coolant flow. This approach reduced temperature deviation inside the battery pack |
| 원문(PDF) |
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