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小室火灾
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  cabin fire
     Numerical simulation study on cabin fire under sprinkler control
     水喷淋控制下小室火灾的数值模拟研究
短句来源
     The cabin fire growth process under sprinkler was studied. According to one real cabin with sprinkler, numerical simulation was used for preliminary analysis. There were three design scenarios: no sprinkler, 0.1 MPa sprinkler, and 0.2 MPa sprinkler.
     研究了水喷淋控制下对小室火灾发展过程的影响,结合一安装有水喷淋的实体小室,采用数值模拟方法进行了初步分析,设计了没有喷淋、0.1MPa喷淋控制和0.2MP喷淋控制等三种工况。
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  相似匹配句对
     Fire Sensor
     火灾传感器
短句来源
     Fire Science
     火灾科学
短句来源
     Numerical simulation study on cabin fire under sprinkler control
     水喷淋控制下小室火灾的数值模拟研究
短句来源
     The results indicate that flashover occurs easily in small rooms;
     实验结果表明:大空间内的小室发生火灾时,容易发生轰燃;
短句来源
     WARNER HOUSE, LONDON, UK, 2004
     华纳小室,伦敦,英国
短句来源
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  cabin fire
Investigation on mechanical exhaust of cabin fire in large-space building
      
A calculation model for mechanical exhaust rate in large-space building in the case of cabin fire is proposed through theoretical analysis.
      
Full-scale hot smoke tests are then performed to study the cabin fire spreading to large-space building at different air change rates (ACH).
      
These tests established beyond a reasonable doubt that toxic products of combustion a r e the controlling factor in aircraft cabin fire survivability.
      


The fire temperature ascend in large space fire is different from apartment fire. “FDS” which is based on field model simulated a series of fire scenario.The qualitative analysing the parameters of large space fire temperature ascending based on the results of simulation revealed four important facts.Firstly,fire growth coefficient doesn't influence on the change in temperature, but the rate of change in temperature. Secondly, fire power has relation with the change in temperature. Thirdly, area has relation...

The fire temperature ascend in large space fire is different from apartment fire. “FDS” which is based on field model simulated a series of fire scenario.The qualitative analysing the parameters of large space fire temperature ascending based on the results of simulation revealed four important facts.Firstly,fire growth coefficient doesn't influence on the change in temperature, but the rate of change in temperature. Secondly, fire power has relation with the change in temperature. Thirdly, area has relation with change in temperature.Finally, height of space has relation with the change in temperature.

大空间建筑火灾空气升温与小室火灾空气升温相差较大 ,用基于场模型的 FDS计算程序模拟多系列火灾场景 ,对影响大空间建筑火灾空气升温参数作定性的分析 ,得出 :(1)火源功率增长系数不影响升温幅度 ,但影响升温速度 ;(2 )火源功率与空气升温具有强相关性 ;(3)当建筑面积≤ 30 0 0 m2 ,建筑面积与空气升温有强相关性 ,当建筑面积 >30 0 0 m2 ,建筑面积对空气升温影响很小 ;(4)建筑空间高度与空气升温有强相关性

The cabin fire growth process under sprinkler was studied. According to one real cabin with sprinkler, numerical simulation was used for preliminary analysis. There were three design scenarios: no sprinkler, 0.1 MPa sprinkler, and 0.2 MPa sprinkler. Results showed, after sprinkler was operated, cabin fire could be controlled, and the smoke temperature in cabin decreased, but the produced and spilled out smoke increased greatly. With increasing sprinkler, the smoke temperature in cabin continued decreasing, but...

The cabin fire growth process under sprinkler was studied. According to one real cabin with sprinkler, numerical simulation was used for preliminary analysis. There were three design scenarios: no sprinkler, 0.1 MPa sprinkler, and 0.2 MPa sprinkler. Results showed, after sprinkler was operated, cabin fire could be controlled, and the smoke temperature in cabin decreased, but the produced and spilled out smoke increased greatly. With increasing sprinkler, the smoke temperature in cabin continued decreasing, but the produced CO, soot and vapor increased. All these will greatly affect occupant safety evacuation and the total fire safety in large space buildings.

研究了水喷淋控制下对小室火灾发展过程的影响,结合一安装有水喷淋的实体小室,采用数值模拟方法进行了初步分析,设计了没有喷淋、0.1MPa喷淋控制和0.2MP喷淋控制等三种工况。结果表明,水喷淋的启动,虽然可以控制火灾的发展,降低小室内的烟气温度,但也会增加烟气的生成量,使溢出的烟气增加。同时,水喷淋的压力增加,小室内的烟气温度继续下降,CO、炭黑以及水蒸气的生成量也会随之增加。这些都对大空间的人员安全疏散以及大空间整体的消防安全带来很大的影响。

 
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