Mr. Potluri sai Kiran
This work, analysis and simulates a phase change material melting for battery thermal management (BTM). Phase change materials (PCM) are the substances that, undergo through a phase transition, such as melting from solid to liquid by absorbing or releasing a significant amount of energy as heat. PCM is advantageous for the thermal control of batteries because of this characteristic. As the battery produces heat, the PCM surrounding it absorbs the heat and changes phase from solid to liquid. The heat that is absorbed during the transition process contributes in keeping the battery’s temperature within safe ranges. Using a 2D rectangular domain, we analyze phase-change materials. All walls are interpreted as natural convection and the inner circle is used to fit the 18650 batteries. In this domain, we assume constant heat from the wall as the battery heats up. This can be simulated using ANSYS (fluent) 2022 R2 software. The phase change materials used in the present analysis are paraffin wax and lauric acid. For a total melting duration of 60 minutes, the counters of the liquid fraction and temperature of different PCM particles are obtained at regular intervals of 15 minutes. The contours aided in figuring out how the formation of a melting contact varies as melting progresses with time. Following a simulation lasting for 60 minutes, it was observed that the melting percentage of lauric acid was 0.61%, whereas that of paraffin wax was 0.94%. These findings suggest that the utilization of lauric acid results in a greater reduction in battery temperature as compared to the use of paraffin wax.
Keywords: battery thermal management, phase change material, lauric acid, paraffin wax, Lauric Acid
This article belongs to Special Issue Conference International Conference on Innovative Concepts in Mechanical Engineering (ICICME – 2023)
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|Received||August 18, 2023|
|Accepted||September 12, 2023|
|Published||September 22, 2023|