The Study of Fractal Structure in Electric Vehicle Battery Cooling

• Main Authors: Kuan-Lin Huang, 黃冠霖
• Other Authors: Shi-Min Lee
• Format: Others
• Language: zh-TW
• Published: 2018
• Online Access: http://ndltd.ncl.edu.tw/handle/e2kg5v

碩士 === 淡江大學 === 航空太空工程學系碩士班 === 106 === This study investigated the temperature and flow fields of electric vehicle battery thermal management system by a CFD software, Icepak. In order to improve the cooling effect, we changed the fractal shape and the arrangement of the battery cells. We maintained the total heat of the battery cells, used forced convection, gave the fan a fixed flow rate and fixed pressure for heat dissipation, and simulated with the k-epsilon standard turbulence model. The numerical simulation results were verified by Heat Transfer Simulation of Electric Vehicle Battery Pack. The simulation results showed that without changing the shape of battery cells but the arrangement, caused the passage of fluid between the cells become more difficult. However, battery with fractal structure can generate a larger velocity gradient between the battery flow channels, which promotes the fluid to flow between the rows, can achieve better heat transfer than the original battery pack, and in the appropriate arrangement can reduce the temperature difference in the battery pack.