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Journal of Mechanical Engineering Science and Technology (JMEST)

Abstract

The active battery thermal management system is important to maintain the lithium-ion battery temperature within the optimum and safe range. However, current research has not considered the potential for excessive energy consumption due to the continuous operation of a fluid flow source, such as a fan. This research aims to investigate the effect of a novel approach called intermittent cooling on the cooling efficacy and energy consumption of the circular-configuration BTMS. Both transient computational fluid dynamic simulation and experiment were conducted in this work with 30 pieces of 18650 Lithium-Ion batteries positioned in a staggered circular configuration. From the result, both simulation and experiment show the inverse proportional relation between fan duty cycle and maximum battery temperature, with the highest maximum battery temperature of 33.59 °C for simulation and 40 °C for experiment, found in the fan duty cycle of 20%. However, in this duty cycle variation, the consumed energy for cooling is the least of the three in this work. The least mechanical energy of 3407.34 J for simulation and the least electrical energy of 22329.65 J for experiment are found in the duty cycle of 20%. The recommended duty cycle in this research scope, which consumes the least energy while maintaining the battery temperature within the optimum range, is more than 60%. The highest root mean square error of battery temperature between the simulation and the experiment is 3.7 °C, while the highest error of maximum battery temperature is 11.62%.

Publisher

State University of Malang (UM)

First Page

1

Last Page

21

Additional Files
#1168_Supplementary File.pdf (1266 kB)
Supplementary File
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