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Investigation on the effects of temperature equilibrium strategy in battery thermal management using phase change material
Author(s) -
Huo Yutao,
Pang Xiaowen,
Rao Zhonghao
Publication year - 2020
Publication title -
international journal of energy research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.808
H-Index - 95
eISSN - 1099-114X
pISSN - 0363-907X
DOI - 10.1002/er.5497
Subject(s) - thermal equilibrium , thermodynamics , battery (electricity) , phase change material , thermal , materials science , heat transfer , thermodynamic equilibrium , physics , power (physics)
Summary The uniformity of temperature distribution is the key factor in heat transfer rate of battery thermal management. In this paper, the battery thermal management using phase change material based on temperature equilibrium strategy have been proposed, in order to get the temperature distribution of battery more uniform. The effects of equilibrium strategy and Rayleigh number are studied. When the Rayleigh numbers are 2.9 × 10 4 , 1.2 × 10 5 , 1.1 × 10 6 , and 4.9 × 10 8 , the temperature SDs applying the equilibrium strategy are reduced by −1.9%, 1.2%, 32.3%, and 14.4%, respectively. Besides, the corresponding complete melting times are reduced by 0.97%, 1.96%, 4.76%, and 1.58%. The equilibrium factor in equilibrium strategy is considered as well. It is noted that increasing the equilibrium factor is able to get the more uniform temperature distribution, resulting in the faster melting rate. When the equilibrium factors are 1, 4, and 6, the complete melting times are reduced by 1.58%, 50.0%, and 51.4%, respectively, improving the thermal performance of battery thermal management.