材料的热释放速率是决定火灾灾害的关键因素。
The heat release rate is the key factor that determines fire hazards.
同时,木耳的质量损失速率不是影响其热释放速率的惟一因素。
In addition, mass loss rate was not the only parameter influencing heat release rate in cone calorimeter for agaric.
隧道内火灾的热释放速率对火灾蔓延和烟气生成起着关键作用。
The heat release rate (HRR) of a fire in a tunnel is a crucial factor, both in terms of fire spread and smoke production.
针对正方形池火,分析了热释放速率峰值、热释放速率峰值来临时间与风速的关系。
The effect of wind on combustion characteristics, such as HRR peak, time of HRR peak, burning rates was analyzed.
将各种非稳态火源热释放速率计算式嵌入建筑物火灾烟流性状预测软件并进行了算例验证。
Some heat release rate formulas are added to the application software for calculation on the properties of the fire smoke flow in building.
质量损失速率、各点温度以及产物一氧化碳浓度变化曲线均与热释放速率曲线的变化趋势保持一致。
The varying tendencies of mass loss rate, temperatures of each point, and CO concentration were all consistent with heat release rate.
外部辐射着火的方式采用符合ISO 5660标准的小型锥形量热计来实现,测量其热释放速率及质量损失速率。
For external radiation ignition manner, a series of small-scale fire tests were conducted in a cone calorimeter in accordance with ISO 5660. Heat release rate and mass loss rate were measured.
结果表明,木材与CR ,PVC输送带相比点燃时间较长,热释放速率介于两者之间,CO生成率和比消光面积较小;
Test results show that wood has longer ignition time, less CO yields and less specific extinction area, but its heat release rate is between CR and PVC belts.
结果表明,含氯化铵的聚氨酯泡沫燃烧时热释放速率最小,仅是未经阻燃处理的聚氨酯泡沫的热释放速率的11.5%;
The results showed that the heat release rate of the PU foam filled with NH_4Cl was the minimum, being only 11.5% of that of the blank.
在此基础上,根据本文提出的曲线叠加法采用计算机就可以容易地得到发生火灾时室内总的热释放速率曲线和热释放速率峰值。
In this foundation, the method of curve superposition proposed by this article may easily obtain the total HRR curve and peak value of HRR by computer when a fire occurs in the room.
通过测量材料表面的温度来研究火蔓延的情况,同时还将火蔓延与火灾过程中的重要参数如热释放速率、热流密度和室内温度等进行了比较,分析了相互之间的关系。
Some key fire parameters, such as heat release rate, heat flux, room temperatures etc, were also performed and compared with the flame spread. The relationships among these parameters were analyzed.
应用因次分析法推导出表征巷(隧)道火灾烟流滚退距离变化规律的通用无因次表达式,该表达式包含影响滚退距离的火源热释放速率、通风风速、巷道倾角和形状等因素。
A non-dimensional expression, which shows the general variation of the backflow distance of smoke and hot gases during a roadway or tunnel fire, was derived through dimensional analysis.
热解时挥发份的迅速释放及煤的热塑性导致了颗粒内部的空心结构,这种结构有效地提高炭粒的燃烧速率。
During the devolatilization, the hollow structure of coal particles is formed due to the rapid release of volatile, which can result in more rapid combustion of char particles.
热解时挥发份的迅速释放及煤的热塑性导致了颗粒内部的空心结构,这种结构有效地提高炭粒的燃烧速率。
During the devolatilization, the hollow structure of coal particles is formed due to the rapid release of volatile, which can result in more rapid combustion of char particles.
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