Numerical simulation study of thermal runaway jet fire characteristics of forced air-cooled cylindrical battery module
To elucidate the spread characteristics of the thermal runaway jet flame in the forced-air-cooled 18650 battery module, a three-dimensional thermal runaway jet fire model is constructed. The process of thermal runaway jet gas passing through the safety valve is modeled as isentropic flow, with the v...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-02-01
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| Series: | Case Studies in Thermal Engineering |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214157X25000103 |
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| author | Xiantong Wu Yanxin Hu Tingting Wu Ziqi Zhuo Huihe Qiu Yishun Zhu Xingyu Li Run Tang |
| author_facet | Xiantong Wu Yanxin Hu Tingting Wu Ziqi Zhuo Huihe Qiu Yishun Zhu Xingyu Li Run Tang |
| author_sort | Xiantong Wu |
| collection | DOAJ |
| description | To elucidate the spread characteristics of the thermal runaway jet flame in the forced-air-cooled 18650 battery module, a three-dimensional thermal runaway jet fire model is constructed. The process of thermal runaway jet gas passing through the safety valve is modeled as isentropic flow, with the velocity inlet boundary applied to the safety valve of the battery. The combustion of the thermal runaway jet gas is simulated using the Eddy Dissipation model within the volume reaction module. Results indicate that when the second cell (cell 2) undergoes thermal runaway jet combustion, the maximum average temperature in the fluid domain of the air-cooled module rises to 1206.41K. In cells aligned in the same row, those nearer to the downstream end initiate jet fires, resulting in a lower maximum average temperature in the fluid domain. Carbon monoxide generated during thermal runaway is predominantly distributed in the upper section of the air-cooled module, with a maximum concentration of 16787 ppm, posing significant safety risks. |
| format | Article |
| id | doaj-art-c920232c0a8947b9b29479ca10bfd300 |
| institution | Kabale University |
| issn | 2214-157X |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Thermal Engineering |
| spelling | doaj-art-c920232c0a8947b9b29479ca10bfd3002025-02-02T05:27:21ZengElsevierCase Studies in Thermal Engineering2214-157X2025-02-0166105750Numerical simulation study of thermal runaway jet fire characteristics of forced air-cooled cylindrical battery moduleXiantong Wu0Yanxin Hu1Tingting Wu2Ziqi Zhuo3Huihe Qiu4Yishun Zhu5Xingyu Li6Run Tang7Guangdong University of Technology, Guangzhou, 510006, ChinaGuangdong University of Technology, Guangzhou, 510006, China; Corresponding author.Guangdong University of Technology, Guangzhou, 510006, China; Thrust of Sustainable Energy and Environment, The Hong Kong University of Science and Technology (Guangzhou), Guangzhou, 510000, ChinaGuangdong University of Technology, Guangzhou, 510006, ChinaThrust of Sustainable Energy and Environment, The Hong Kong University of Science and Technology (Guangzhou), Guangzhou, 510000, ChinaGuangzhou Power Supply Bureau of Guangdong Power Grid Co., Ltd, Guangzhou, 510000, China; Corresponding author.Guangdong University of Technology, Guangzhou, 510006, ChinaGuangzhou Power Supply Bureau of Guangdong Power Grid Co., Ltd, Guangzhou, 510000, ChinaTo elucidate the spread characteristics of the thermal runaway jet flame in the forced-air-cooled 18650 battery module, a three-dimensional thermal runaway jet fire model is constructed. The process of thermal runaway jet gas passing through the safety valve is modeled as isentropic flow, with the velocity inlet boundary applied to the safety valve of the battery. The combustion of the thermal runaway jet gas is simulated using the Eddy Dissipation model within the volume reaction module. Results indicate that when the second cell (cell 2) undergoes thermal runaway jet combustion, the maximum average temperature in the fluid domain of the air-cooled module rises to 1206.41K. In cells aligned in the same row, those nearer to the downstream end initiate jet fires, resulting in a lower maximum average temperature in the fluid domain. Carbon monoxide generated during thermal runaway is predominantly distributed in the upper section of the air-cooled module, with a maximum concentration of 16787 ppm, posing significant safety risks.http://www.sciencedirect.com/science/article/pii/S2214157X25000103Battery moduleForced coolingThermal runawayJet fireAnsys fluent |
| spellingShingle | Xiantong Wu Yanxin Hu Tingting Wu Ziqi Zhuo Huihe Qiu Yishun Zhu Xingyu Li Run Tang Numerical simulation study of thermal runaway jet fire characteristics of forced air-cooled cylindrical battery module Case Studies in Thermal Engineering Battery module Forced cooling Thermal runaway Jet fire Ansys fluent |
| title | Numerical simulation study of thermal runaway jet fire characteristics of forced air-cooled cylindrical battery module |
| title_full | Numerical simulation study of thermal runaway jet fire characteristics of forced air-cooled cylindrical battery module |
| title_fullStr | Numerical simulation study of thermal runaway jet fire characteristics of forced air-cooled cylindrical battery module |
| title_full_unstemmed | Numerical simulation study of thermal runaway jet fire characteristics of forced air-cooled cylindrical battery module |
| title_short | Numerical simulation study of thermal runaway jet fire characteristics of forced air-cooled cylindrical battery module |
| title_sort | numerical simulation study of thermal runaway jet fire characteristics of forced air cooled cylindrical battery module |
| topic | Battery module Forced cooling Thermal runaway Jet fire Ansys fluent |
| url | http://www.sciencedirect.com/science/article/pii/S2214157X25000103 |
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