Experimental Study on the Burning Characteristics of Photovoltaic Modules with Different Inclination Angles Under the Pool Fire
Mountain photovoltaic (PV) power stations cover vast areas and contain dense equipment. Once direct current arc faults occur in PV modules, they can pose a serious thermal threat to surrounding facilities and combustible materials, potentially resulting in a PV array fire accident. In this work, a s...
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MDPI AG
2025-04-01
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| Series: | Fire |
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| Online Access: | https://www.mdpi.com/2571-6255/8/4/143 |
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| author | Jingwen Xiao Dong Lin Jia Zeng Shuai Zhang Jinlong Zhao |
| author_facet | Jingwen Xiao Dong Lin Jia Zeng Shuai Zhang Jinlong Zhao |
| author_sort | Jingwen Xiao |
| collection | DOAJ |
| description | Mountain photovoltaic (PV) power stations cover vast areas and contain dense equipment. Once direct current arc faults occur in PV modules, they can pose a serious thermal threat to surrounding facilities and combustible materials, potentially resulting in a PV array fire accident. In this work, a series of PV module fire experiments were conducted to investigate the burning characteristics of PV modules exposed to the pool fire. The burning process, burning damage extent, and temperature distribution were measured and analyzed. The results showed that the surfaces of PV modules exhibited different burning characteristics due to the pool fire. Based on different characteristics, the front side was classified into four zones: intact zone, delamination zone, carbonization zone and burn-through zone. The back side was similarly divided into four zones: undamaged backsheet zone, burnt TPT zone, cell detachment zone and burn-through zone. Meanwhile, the burning process and surface temperature rise rate of intact PV modules were significantly lower than those of cracked modules at the same inclination angle. Cracked modules exhibited a heightened susceptibility to being rapidly burnt through by the pool fire. As the inclination angle increased from 0° to 60°, the burning damage extent and the expansion rate of high-temperature regions initially ascended and subsequently decreased, reaching their maximum at the inclination angle of 15°. These findings can offer valuable insights that can serve as a reference for the fire protection design and risk assessment of mountain PV power stations, ensuring their safe operation. |
| format | Article |
| id | doaj-art-30ae5f63f46c4fea964a5fff2cfbb27e |
| institution | OA Journals |
| issn | 2571-6255 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | MDPI AG |
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| series | Fire |
| spelling | doaj-art-30ae5f63f46c4fea964a5fff2cfbb27e2025-08-20T02:28:20ZengMDPI AGFire2571-62552025-04-018414310.3390/fire8040143Experimental Study on the Burning Characteristics of Photovoltaic Modules with Different Inclination Angles Under the Pool FireJingwen Xiao0Dong Lin1Jia Zeng2Shuai Zhang3Jinlong Zhao4Institute of Safety, Environmental and Technical Supervision Research, PetroChina Southwest Oil and Gas Field Company, Chengdu 610017, ChinaInstitute of Safety, Environmental and Technical Supervision Research, PetroChina Southwest Oil and Gas Field Company, Chengdu 610017, ChinaInstitute of Safety, Environmental and Technical Supervision Research, PetroChina Southwest Oil and Gas Field Company, Chengdu 610017, ChinaInner Mongolia Research Institute, China University of Mining and Technology (Beijing), Ordos 017001, ChinaInner Mongolia Research Institute, China University of Mining and Technology (Beijing), Ordos 017001, ChinaMountain photovoltaic (PV) power stations cover vast areas and contain dense equipment. Once direct current arc faults occur in PV modules, they can pose a serious thermal threat to surrounding facilities and combustible materials, potentially resulting in a PV array fire accident. In this work, a series of PV module fire experiments were conducted to investigate the burning characteristics of PV modules exposed to the pool fire. The burning process, burning damage extent, and temperature distribution were measured and analyzed. The results showed that the surfaces of PV modules exhibited different burning characteristics due to the pool fire. Based on different characteristics, the front side was classified into four zones: intact zone, delamination zone, carbonization zone and burn-through zone. The back side was similarly divided into four zones: undamaged backsheet zone, burnt TPT zone, cell detachment zone and burn-through zone. Meanwhile, the burning process and surface temperature rise rate of intact PV modules were significantly lower than those of cracked modules at the same inclination angle. Cracked modules exhibited a heightened susceptibility to being rapidly burnt through by the pool fire. As the inclination angle increased from 0° to 60°, the burning damage extent and the expansion rate of high-temperature regions initially ascended and subsequently decreased, reaching their maximum at the inclination angle of 15°. These findings can offer valuable insights that can serve as a reference for the fire protection design and risk assessment of mountain PV power stations, ensuring their safe operation.https://www.mdpi.com/2571-6255/8/4/143PV moduleburning processburning damage extenttemperature distribution |
| spellingShingle | Jingwen Xiao Dong Lin Jia Zeng Shuai Zhang Jinlong Zhao Experimental Study on the Burning Characteristics of Photovoltaic Modules with Different Inclination Angles Under the Pool Fire Fire PV module burning process burning damage extent temperature distribution |
| title | Experimental Study on the Burning Characteristics of Photovoltaic Modules with Different Inclination Angles Under the Pool Fire |
| title_full | Experimental Study on the Burning Characteristics of Photovoltaic Modules with Different Inclination Angles Under the Pool Fire |
| title_fullStr | Experimental Study on the Burning Characteristics of Photovoltaic Modules with Different Inclination Angles Under the Pool Fire |
| title_full_unstemmed | Experimental Study on the Burning Characteristics of Photovoltaic Modules with Different Inclination Angles Under the Pool Fire |
| title_short | Experimental Study on the Burning Characteristics of Photovoltaic Modules with Different Inclination Angles Under the Pool Fire |
| title_sort | experimental study on the burning characteristics of photovoltaic modules with different inclination angles under the pool fire |
| topic | PV module burning process burning damage extent temperature distribution |
| url | https://www.mdpi.com/2571-6255/8/4/143 |
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