Study on fire extinguishing performance of ultrafine water mist in a cup burner
Two simplified models for predicting minimum extinguishing concentration（MEC） of ultrafine water mist（UFM）（〈10 m） were developed based on limiting oxygen concentration（LOC） and combustion limit temperature（CLT）,respectively.Experiment was conducted using a modified cup burner which can reduce the su...
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| Veröffentlicht in: | Science China. Technological sciences 2012-07, Vol.55 (7), p.1982-1987 |
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| container_end_page | 1987 |
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| container_issue | 7 |
| container_start_page | 1982 |
| container_title | Science China. Technological sciences |
| container_volume | 55 |
| creator | Liang, TianShui Liao, GuangXuan Lu, SiuMing Wang, XiShi |
| description | Two simplified models for predicting minimum extinguishing concentration（MEC） of ultrafine water mist（UFM）（〈10 m） were developed based on limiting oxygen concentration（LOC） and combustion limit temperature（CLT）,respectively.Experiment was conducted using a modified cup burner which can reduce the surface adsorption of UFM.Two typical liquid fuels,n-heptane and ethanol,were used in the experiment.Tests using the same scenario were repeated 20 times or 10 times according to the variance of extinguishing time.The average and the standard deviations of extinguishing time were used to evaluate the fire extinguishing performance of UFM.Experimental results agree well with the model based on LOC,and disagree with the model based on CLT.The disagreements were explained by analyzing flow behavior of UFM.It was concluded that the primary mechanism of fire extinguishment with UFM was oxygen dilution. |
| doi_str_mv | 10.1007/s11431-012-4776-y |
| format | Article |
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Technological sciences</title><addtitle>Sci. China Technol. 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| fulltext | fulltext |
| identifier | ISSN: 1674-7321 |
| ispartof | Science China. Technological sciences, 2012-07, Vol.55 (7), p.1982-1987 |
| issn | 1674-7321 1869-1900 |
| language | eng |
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| source | SpringerNature Journals; Alma/SFX Local Collection |
| subjects | Combustion Constraining Engineering Ethanol Ethyl alcohol Extinguishing Fires Standard deviation Surface chemistry 极限温度 模型预测 消防 灭火性能 灭火浓度 燃烧器 细水雾灭火 超细水雾 |
| title | Study on fire extinguishing performance of ultrafine water mist in a cup burner |
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