Design of Parallel Air-Cooled Battery Thermal Management System through Numerical Study
In electric vehicles, the battery pack is one of the most important components that strongly influence the system performance. The battery thermal management system (BTMS) is critical to remove the heat generated by the battery pack, which guarantees the appropriate working temperature for the batte...
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| Format: | Article |
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MDPI AG
2017-10-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/10/10/1677 |
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| author | Kai Chen Zeyu Li Yiming Chen Shuming Long Junsheng Hou Mengxuan Song Shuangfeng Wang |
| author_facet | Kai Chen Zeyu Li Yiming Chen Shuming Long Junsheng Hou Mengxuan Song Shuangfeng Wang |
| author_sort | Kai Chen |
| collection | DOAJ |
| description | In electric vehicles, the battery pack is one of the most important components that strongly influence the system performance. The battery thermal management system (BTMS) is critical to remove the heat generated by the battery pack, which guarantees the appropriate working temperature for the battery pack. Air cooling is one of the most commonly-used solutions among various battery thermal management technologies. In this paper, the cooling performance of the parallel air-cooled BTMS is improved through choosing appropriate system parameters. The flow field and the temperature field of the system are calculated using the computational fluid dynamics method. Typical numerical cases are introduced to study the influences of the operation parameters and the structure parameters on the performance of the BTMS. The operation parameters include the discharge rate of the battery pack, the inlet air temperature and the inlet airflow rate. The structure parameters include the cell spacing and the angles of the divergence plenum and the convergence plenum. The results show that the temperature rise and the temperature difference of the batter pack are not affected by the inlet air flow temperature and are increased as the discharge rate increases. Increasing the inlet airflow rate can reduce the maximum temperature, but meanwhile significantly increase the power consumption for driving the airflow. Adopting smaller cell spacing can reduce the temperature and the temperature difference of the battery pack, but it consumes much more power. Designing the angles of the divergence plenum and the convergence plenum is an effective way to improve the performance of the BTMS without occupying more system volume. An optimization strategy is used to obtain the optimal values of the plenum angles. For the numerical cases with fixed power consumption, the maximum temperature and the maximum temperature difference at the end of the five-current discharge process for the optimized BTMS are respectively reduced by 2.1 K and 4.3 K, compared to the original system. |
| first_indexed | 2024-04-11T11:54:26Z |
| format | Article |
| id | doaj.art-96ea1162930f42d88e44759e378bcead |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-11T11:54:26Z |
| publishDate | 2017-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-96ea1162930f42d88e44759e378bcead2022-12-22T04:25:12ZengMDPI AGEnergies1996-10732017-10-011010167710.3390/en10101677en10101677Design of Parallel Air-Cooled Battery Thermal Management System through Numerical StudyKai Chen0Zeyu Li1Yiming Chen2Shuming Long3Junsheng Hou4Mengxuan Song5Shuangfeng Wang6Key Laboratory of Enhanced Heat Transfer and Energy Conservation of the Ministry of Education, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, ChinaKey Laboratory of Enhanced Heat Transfer and Energy Conservation of the Ministry of Education, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, ChinaKey Laboratory of Enhanced Heat Transfer and Energy Conservation of the Ministry of Education, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, ChinaKey Laboratory of Enhanced Heat Transfer and Energy Conservation of the Ministry of Education, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, ChinaKey Laboratory of Enhanced Heat Transfer and Energy Conservation of the Ministry of Education, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, ChinaDepartment of Control Science and Engineering, Tongji University, Shanghai 201804, ChinaKey Laboratory of Enhanced Heat Transfer and Energy Conservation of the Ministry of Education, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, ChinaIn electric vehicles, the battery pack is one of the most important components that strongly influence the system performance. The battery thermal management system (BTMS) is critical to remove the heat generated by the battery pack, which guarantees the appropriate working temperature for the battery pack. Air cooling is one of the most commonly-used solutions among various battery thermal management technologies. In this paper, the cooling performance of the parallel air-cooled BTMS is improved through choosing appropriate system parameters. The flow field and the temperature field of the system are calculated using the computational fluid dynamics method. Typical numerical cases are introduced to study the influences of the operation parameters and the structure parameters on the performance of the BTMS. The operation parameters include the discharge rate of the battery pack, the inlet air temperature and the inlet airflow rate. The structure parameters include the cell spacing and the angles of the divergence plenum and the convergence plenum. The results show that the temperature rise and the temperature difference of the batter pack are not affected by the inlet air flow temperature and are increased as the discharge rate increases. Increasing the inlet airflow rate can reduce the maximum temperature, but meanwhile significantly increase the power consumption for driving the airflow. Adopting smaller cell spacing can reduce the temperature and the temperature difference of the battery pack, but it consumes much more power. Designing the angles of the divergence plenum and the convergence plenum is an effective way to improve the performance of the BTMS without occupying more system volume. An optimization strategy is used to obtain the optimal values of the plenum angles. For the numerical cases with fixed power consumption, the maximum temperature and the maximum temperature difference at the end of the five-current discharge process for the optimized BTMS are respectively reduced by 2.1 K and 4.3 K, compared to the original system.https://www.mdpi.com/1996-1073/10/10/1677battery thermal managementair coolingsystem parametersplenum anglenumerical study |
| spellingShingle | Kai Chen Zeyu Li Yiming Chen Shuming Long Junsheng Hou Mengxuan Song Shuangfeng Wang Design of Parallel Air-Cooled Battery Thermal Management System through Numerical Study Energies battery thermal management air cooling system parameters plenum angle numerical study |
| title | Design of Parallel Air-Cooled Battery Thermal Management System through Numerical Study |
| title_full | Design of Parallel Air-Cooled Battery Thermal Management System through Numerical Study |
| title_fullStr | Design of Parallel Air-Cooled Battery Thermal Management System through Numerical Study |
| title_full_unstemmed | Design of Parallel Air-Cooled Battery Thermal Management System through Numerical Study |
| title_short | Design of Parallel Air-Cooled Battery Thermal Management System through Numerical Study |
| title_sort | design of parallel air cooled battery thermal management system through numerical study |
| topic | battery thermal management air cooling system parameters plenum angle numerical study |
| url | https://www.mdpi.com/1996-1073/10/10/1677 |
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