Computational fluid dynamics and thermal analysis of a lithium-ion battery with different cooling system for electric vehicles

Abstract

Lithium-ion batteries are the main bases available for electric vehicles and hybrid electric vehicles, because of clean energy transportation as compared to other power sources developed by traditional I.C Engines. In order to get high discharging Lithium-ion batteries battery condition, there is a significant temperature difference should be maintained in between battery temperature and appropriate local temperature. In this paper presents the model designed with different type of heat pipe shapes modeling in CREO parametric software and analyzes the heat pipe with different mass flow inlets (30& 50L/min) thermal thermal analysis done in ANSYS to determine the temperature distribution and heat flux for two types of phase change materials (RT50 & Li Fe PO 4). Also, Computational Fluid Dynamics analysis (CFD) is to calculate pressure (pa), velocity (m/s), heat transfer coefficient (w/m 2k), mass flow rate (kg/sec) and heat transfer rate (w) for the different designs of heat pipe and different mass flow inlets. It has been observed that in thermal analysis the heat flux value is more for lithium ion phosphate phase change material (Li Fe PO 4) than RT50 phase change material at U-bend heat pipes. Similarly in CFD analysis observed that mass flow rate (kg/sec), heat transfer rate (w), heat transfer coefficient (w/m 2k) values are increases by increasing the mass flow inlets and heat transfer rate more at straight type heat pipes as compared to bend type.

Effect of the Size and Location of Liquid Cooling System on the Performance of Square-Shaped Li-Ion Battery Modules of an Electric Vehicle

“…Objects in nature all satisfy the basic laws of conservation of physics in motion. In a CFD calculation, the governing equations satisfied by the fluid are the continuity equation, momentum equation, and energy equation [33,34]. Because the fluid in this research adopts the laminar flow mode, it does not need to obey the turbulent transport equation.…”