| Simulation of a compartment fire using a zone model |
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| 作者姓名： | YANGLizhong GUOZaifu JIJingwei FANWeicheng |
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| 作者单位： | [1]StateKeyLaboratoryofFireScience,UniversityofScienceandTechnologyofChina,Hefei230026,China [2]InstituteofEnergyandSafety,ChinaUniversityofMiningandTechnology,Xuzhou221008,China |
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| 摘 要： | This paper presents the zone modeling analysis of a single compartment flashover fire. Two criteria are applied in the model to judge the onset of ignition for different combustibles. By calculating the total received energy through radiation or the surface temperature of the combustible, the fire growth can be quantitatively determined. The improved zone fire model shows the influence of different combustibles upon the fire growth. This model is better than the traditional zone model because the common criteria of flashover, i.e. an upper layer temperature of 600℃ and the heat radiation intensity received by the floor of 20 kW/m^2, have not been applied in it.
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| 关 键 词： | 环状模型 跳火 点火规范 热流通变量 火灾模拟 |
| 收稿时间： | 26 January 2005 |
Simulation of a compartment fire using a zone model |
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| YANGLizhong GUOZaifu JIJingwei FANWeicheng.Simulation of a compartment fire using a zone model[J].Chinese Science Bulletin,2005,50(9):923-928. |
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| Authors: | Yang Lizhong Guo Zaifu Ji Jingwei Fan Weicheng |
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| Institution: | (1) State Key Laboratory of Fire Science, University of Science and Technology of China, 230026 Hefei, China;(2) Institute of Energy and Safety, China University of Mining and Technology, 221008 Xuzhou, China |
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| Abstract: | This paper presents the zone modeling analysis of a single compartment flashover fire. Two criteria are applied in the model
to judge the onset of ignition for different combustibles. By calculating the total received energy through radiation or the
surface temperature of the combustible, the fire growth can be quantitatively determined. The improved zone fire model shows
the influence of different combustibles upon the fire growth. This model is better than the traditional zone model because
the common criteria of flashover, i.e. an upper layer temperature of 600°C and the heat radiation intensity received by the
floor of 20 kW/m2, have not been applied in it. |
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| Keywords: | zone model flashover ignition criterion variable heat flux fire model |
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