A Study of Variable Cell Spacings to the Heat Transfer Efficiency of Air-Cooling Battery Thermal Management System
The air-cooling battery thermal management system has been widely adopted as the thermal management device for power accumulators on electric vehicles nowadays. To improve the system heat transfer coefficient with the minimum rise in cost, this study modified conventional rectangular cell arrangemen...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-11-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/11/23/11155 |
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| author | Gang Zhao Xiaolin Wang Michael Negnevitsky |
| author_facet | Gang Zhao Xiaolin Wang Michael Negnevitsky |
| author_sort | Gang Zhao |
| collection | DOAJ |
| description | The air-cooling battery thermal management system has been widely adopted as the thermal management device for power accumulators on electric vehicles nowadays. To improve the system heat transfer coefficient with the minimum rise in cost, this study modified conventional rectangular cell arrangements for 21,700 cylindrical cell battery packs with two approaches: 1. increase the vertical spacings; 2. convert constant vertical spacings to gradient vertical spacings. The results show that smaller vertical spacings are beneficial to the overall cooling performances of the constant vertical spacings designs at almost all flow rates. The gradient vertical spacing design with larger spacing could deliver better temperature uniformity, while the one with smaller spacings could suppress the maximum temperature more efficiently at higher flow rates. However, the total battery pack volume of Design 7 (the largest gradient vertical spacing design) is 7.5% larger than the conventional design. |
| first_indexed | 2024-03-10T04:58:07Z |
| format | Article |
| id | doaj.art-6191f26d8de04849b20b0aff504b87d5 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T04:58:07Z |
| publishDate | 2021-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-6191f26d8de04849b20b0aff504b87d52023-11-23T02:03:32ZengMDPI AGApplied Sciences2076-34172021-11-0111231115510.3390/app112311155A Study of Variable Cell Spacings to the Heat Transfer Efficiency of Air-Cooling Battery Thermal Management SystemGang Zhao0Xiaolin Wang1Michael Negnevitsky2School of Engineering, University of Tasmania, Hobart 7005, AustraliaSchool of Engineering, University of Tasmania, Hobart 7005, AustraliaSchool of Engineering, University of Tasmania, Hobart 7005, AustraliaThe air-cooling battery thermal management system has been widely adopted as the thermal management device for power accumulators on electric vehicles nowadays. To improve the system heat transfer coefficient with the minimum rise in cost, this study modified conventional rectangular cell arrangements for 21,700 cylindrical cell battery packs with two approaches: 1. increase the vertical spacings; 2. convert constant vertical spacings to gradient vertical spacings. The results show that smaller vertical spacings are beneficial to the overall cooling performances of the constant vertical spacings designs at almost all flow rates. The gradient vertical spacing design with larger spacing could deliver better temperature uniformity, while the one with smaller spacings could suppress the maximum temperature more efficiently at higher flow rates. However, the total battery pack volume of Design 7 (the largest gradient vertical spacing design) is 7.5% larger than the conventional design.https://www.mdpi.com/2076-3417/11/23/11155lithium-ion batteryair coolingbattery thermal management systembattery cell spacinggradient vertical spacing |
| spellingShingle | Gang Zhao Xiaolin Wang Michael Negnevitsky A Study of Variable Cell Spacings to the Heat Transfer Efficiency of Air-Cooling Battery Thermal Management System Applied Sciences lithium-ion battery air cooling battery thermal management system battery cell spacing gradient vertical spacing |
| title | A Study of Variable Cell Spacings to the Heat Transfer Efficiency of Air-Cooling Battery Thermal Management System |
| title_full | A Study of Variable Cell Spacings to the Heat Transfer Efficiency of Air-Cooling Battery Thermal Management System |
| title_fullStr | A Study of Variable Cell Spacings to the Heat Transfer Efficiency of Air-Cooling Battery Thermal Management System |
| title_full_unstemmed | A Study of Variable Cell Spacings to the Heat Transfer Efficiency of Air-Cooling Battery Thermal Management System |
| title_short | A Study of Variable Cell Spacings to the Heat Transfer Efficiency of Air-Cooling Battery Thermal Management System |
| title_sort | study of variable cell spacings to the heat transfer efficiency of air cooling battery thermal management system |
| topic | lithium-ion battery air cooling battery thermal management system battery cell spacing gradient vertical spacing |
| url | https://www.mdpi.com/2076-3417/11/23/11155 |
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