期刊
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
卷 173, 期 -, 页码 -出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijheatmasstransfer.2021.121269
关键词
Battery thermal management system; Heat pipe; Lithium-ion battery; Phase-change material
资金
- Korea Institute of Energy Technology Evaluation and Planning (KETEP)
- Ministry of Trade, Industry, and Energy (MOTIE) of the Republic of Korea [20192010107020]
- National Research Foundation of Korea - Korean Government [2019R1A2C2010607]
- National Research Foundation of Korea [5199990414581, 2019R1A2C2010607] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
This study introduces two types of compact battery thermal management systems utilizing phase-change material and flat plate heat pipes, successfully managing the thermal stable operating conditions. Experimental and computational results show that as the heat generation rate increases, PCM melting occurs, potentially causing thermal imbalance within the battery module.
The thermal management of lithium-ion batteries is crucial for electric vehicles because of the optimum operating temperature and safety issues. Herein, we propose two types of compact battery thermal management systems (BTMS), which utilize a phase-change material (PCM), i.e., paraffin and flat plate heat pipes with liquid water cooling. The configurations are classified using the heat pipe installation method as the detached heat pipe (DHP) mode and attached heat pipe (AHP) mode. The thermal performance of the proposed BTMSs is characterized experimentally, and it is verified that the proposed AHP installation mode successfully managed the thermally stable operating conditions of the BTMSs. PCM melting is predicted using computational fluid dynamics and verified via experimental visualization. At a low heat generation rate of 2 W (544.39 W/m(2)), the PCM remained in the solid state. Melting occurred at higher heat generation rates of 4 and 6 W (1088.79 and 1633.18 W/m(2), respectively). At the coolant inlet temperature, the module's maximum temperature decreased significantly; however, the temperature difference within the module increased, which can cause thermal imbalance in the battery module. (C) 2021 Elsevier Ltd. All rights reserved.
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