리튬 이온 배터리의 냉각유로에서 와류발생기에 의한 열전달 향상에 대한 수치해석
Numerical Analysis on the Heat Transfer Improvement of Cooling Passage in Lithium-ion Battery by using Vortex Generator
The improvement of heat transfer in water cooling passage of lithium-ion battery is numerically studied by employing trapezoidal vortex generators. Battery Design StudioⓇ software is used for modeling electro-chemical heat generation in the battery. The conjugated heat transfer is analyzed with the commercial package STAR-CCM+ in terms of inlet flow velocities. The result shows that vortex generator enhances the convective heat transfer by developing thermal boundary layers and secondary flows in downstream, which results in reducing the average temperature of the battery by about 1℃. The heat transfer is enhanced for the whole inlet velocity, while the pressure loss sharply increases at more than inlet velocity of 0.1m/s. The optimum inlet velocity is around 0.1m/s for in terms of the heat transfer and pressure loss.
목차
ABSTRACT 1. 서론 2. 수치해석 모델 및 방법 2.1 배터리 셀 모델 2.2 수치해석 방법 3. 수치해석 결과 및 검토 4. 결론 후기 References
박홍준 [ Hong-Jun Park | Student, Dept. of Mechnical & Automotive Engineering, Seoul National Univesity of Science and Technology ]
이수룡 [ Su-Ryong Lee | Member, Professor, Dept., of Mechanical & Automotive Engr., Seoul National University of Science and Technology ]
Corresponding Author