EXPERIMENTAL AND NUMERICAL INVESTIGATION OF BATTERY COOLING USING ETHYLINE GLYCOL THROUGH CORRUGATED CHANNEL

Abstract

As the automotive industry progresses, electric vehicles (EV) grow with increasing demand throughout the world. Nickel metal hydride (NiMH) battery and lithium-ion (Li-ion) are widely used in EV due to their advantages such as impressive energy density, good power density, and low self-discharge. However, the batteries must be operated within their optimum range for safety and goodthermal management to enable a longer lifespan, lower costs, and improve safety for EV batteries. But most of the cases such as fast changing, battery discharge it is not possible to keep the designed operating conditions of battery. So, battery thermal management system is necessary for good operating conditions of the battery. Most of the cases liquid cooling method is used with coolant as water. But water can't be used in all countries because of the freezing point of the water. So, ethylene glycol and water mixture is proposed. In this work experimental study of different coolants such as water, ethylene glycol, ethylene glycol and water mixture in the ratio of 40:60, 50:50, 60:40 and numerical simulation of water, ethylene glycol and ethylene glycol - water in the ratio of 60:40 is carried out. From the comparison between different coolants it can be observed that ethylene glycol and water with ratio of 60:40 was more effective than others