Research on Flashover Prediction Method of Large-Space Timber Structures in a Fire
Due to the flammability of materials and the vastness of space, flashover fires of large-space timber structures pose a huge threat to lives as well as the structures themselves. Therefore, it is necessary to study the critical conditions, control factors and prediction methods of flashover fires. T...
Ausführliche Beschreibung
Autor*in: |
Yongwang Zhang [verfasserIn] Lu Wang [verfasserIn] |
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Format: |
E-Artikel |
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Sprache: |
Englisch |
Erschienen: |
2021 |
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Übergeordnetes Werk: |
In: Materials - MDPI AG, 2009, 14(2021), 19, p 5515 |
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Übergeordnetes Werk: |
volume:14 ; year:2021 ; number:19, p 5515 |
Links: |
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DOI / URN: |
10.3390/ma14195515 |
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Katalog-ID: |
DOAJ062454927 |
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10.3390/ma14195515 doi (DE-627)DOAJ062454927 (DE-599)DOAJcf764d0d3df44eeca8943031be9cef61 DE-627 ger DE-627 rakwb eng TK1-9971 TA1-2040 QH201-278.5 QC120-168.85 Yongwang Zhang verfasserin aut Research on Flashover Prediction Method of Large-Space Timber Structures in a Fire 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Due to the flammability of materials and the vastness of space, flashover fires of large-space timber structures pose a huge threat to lives as well as the structures themselves. Therefore, it is necessary to study the critical conditions, control factors and prediction methods of flashover fires. To address this issue, hundreds of design conditions were simulated by Fire Dynamics Simulator (FDS) with variations in space size, the heat release rate (HRR) of fire source and fire growth type. A temperature–time model of the maximum temperature of the smoke layer near the ceiling (<i<T<sub<max</sub<</i<) was established, and the critical condition that uses this model to predict the occurrence of flashover was determined. Furthermore, a mathematical formula was established that can accurately predict the flashover induction time when the <i<T<sub<max</sub<</i< exceeds 400 °C. This research can provide a reference for the performance-based fire safety design of large-space timber structures. large-space timber structures flashover fires flashover induction time flashover critical condition flashover prediction Technology T Electrical engineering. Electronics. Nuclear engineering Engineering (General). Civil engineering (General) Microscopy Descriptive and experimental mechanics Lu Wang verfasserin aut In Materials MDPI AG, 2009 14(2021), 19, p 5515 (DE-627)595712649 (DE-600)2487261-1 19961944 nnns volume:14 year:2021 number:19, p 5515 https://doi.org/10.3390/ma14195515 kostenfrei https://doaj.org/article/cf764d0d3df44eeca8943031be9cef61 kostenfrei https://www.mdpi.com/1996-1944/14/19/5515 kostenfrei https://doaj.org/toc/1996-1944 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2108 GBV_ILN_2111 GBV_ILN_2119 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 14 2021 19, p 5515 |
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Yongwang Zhang |
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Yongwang Zhang misc TK1-9971 misc TA1-2040 misc QH201-278.5 misc QC120-168.85 misc large-space timber structures misc flashover fires misc flashover induction time misc flashover critical condition misc flashover prediction misc Technology misc T misc Electrical engineering. Electronics. Nuclear engineering misc Engineering (General). Civil engineering (General) misc Microscopy misc Descriptive and experimental mechanics Research on Flashover Prediction Method of Large-Space Timber Structures in a Fire |
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TK1-9971 TA1-2040 QH201-278.5 QC120-168.85 Research on Flashover Prediction Method of Large-Space Timber Structures in a Fire large-space timber structures flashover fires flashover induction time flashover critical condition flashover prediction |
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Research on Flashover Prediction Method of Large-Space Timber Structures in a Fire |
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Due to the flammability of materials and the vastness of space, flashover fires of large-space timber structures pose a huge threat to lives as well as the structures themselves. Therefore, it is necessary to study the critical conditions, control factors and prediction methods of flashover fires. To address this issue, hundreds of design conditions were simulated by Fire Dynamics Simulator (FDS) with variations in space size, the heat release rate (HRR) of fire source and fire growth type. A temperature–time model of the maximum temperature of the smoke layer near the ceiling (<i<T<sub<max</sub<</i<) was established, and the critical condition that uses this model to predict the occurrence of flashover was determined. Furthermore, a mathematical formula was established that can accurately predict the flashover induction time when the <i<T<sub<max</sub<</i< exceeds 400 °C. This research can provide a reference for the performance-based fire safety design of large-space timber structures. |
abstractGer |
Due to the flammability of materials and the vastness of space, flashover fires of large-space timber structures pose a huge threat to lives as well as the structures themselves. Therefore, it is necessary to study the critical conditions, control factors and prediction methods of flashover fires. To address this issue, hundreds of design conditions were simulated by Fire Dynamics Simulator (FDS) with variations in space size, the heat release rate (HRR) of fire source and fire growth type. A temperature–time model of the maximum temperature of the smoke layer near the ceiling (<i<T<sub<max</sub<</i<) was established, and the critical condition that uses this model to predict the occurrence of flashover was determined. Furthermore, a mathematical formula was established that can accurately predict the flashover induction time when the <i<T<sub<max</sub<</i< exceeds 400 °C. This research can provide a reference for the performance-based fire safety design of large-space timber structures. |
abstract_unstemmed |
Due to the flammability of materials and the vastness of space, flashover fires of large-space timber structures pose a huge threat to lives as well as the structures themselves. Therefore, it is necessary to study the critical conditions, control factors and prediction methods of flashover fires. To address this issue, hundreds of design conditions were simulated by Fire Dynamics Simulator (FDS) with variations in space size, the heat release rate (HRR) of fire source and fire growth type. A temperature–time model of the maximum temperature of the smoke layer near the ceiling (<i<T<sub<max</sub<</i<) was established, and the critical condition that uses this model to predict the occurrence of flashover was determined. Furthermore, a mathematical formula was established that can accurately predict the flashover induction time when the <i<T<sub<max</sub<</i< exceeds 400 °C. This research can provide a reference for the performance-based fire safety design of large-space timber structures. |
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