At present, in order to analyse the temperature and smoke in the tunnel fire, we use numerical simulation to calculate the variable, which are all based on the fire heat release rate (HRR).
目前，运用火灾模拟程序进行定量计算，分析失火隧道内的温度、烟气生成量等参数时，都是以火灾热释放率(HRR)为基础的。
Therefore the article recommends that according to fire heat release rate, escape time and control height of smoke layer, the rate of mechanical smoke extraction should be reasonably decided.
文章建议根据火源释热率、火灾发生后的逃生时间、烟气层的控制高度合理确定大空间的机械排烟速率。
Accident tree analysis is applied to risk analysis and a mathematical model is established, including fire model, effective release rate model, heat intensity threshold and hazard area equation.
采用事件树分析法进行风险分析并建立了数学模型，包括火灾模型、有效释放率模型、热强度极限值、危险区域等式四部分。
Some heat release rate formulas are added to the application software for calculation on the properties of the fire smoke flow in building.
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。
The heat release rate (HRR) of a fire in a tunnel is a crucial factor, both in terms of fire spread and smoke production.
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 safe position for the fireman is farther and farther from the fire source as the heat release rate increases and nearer and nearer from the fire source as the ventilation value increases;
消防安全救援位置，随着热释放率的增大距离火源越来越远，随着风速的增大距离火源越来越近。
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.
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。
Heat release rate of the fire is calculated and the distribution of temperatures and concentration of carbon monoxide of smoke are discussed.
计算了火灾释热速率以及着火大空间烟气的温度场和一氧化碳浓度场的变化。
This paper studied on the activation ti me of sprinkler and the critical heat release rate to activatethe sprinkler when a fire happened.
探讨了火灾时闭式喷头的响应时间和启动闭式喷头的临界火源功率，通过分析计算，给出了喷头启动时间与各种影响因素的拟合公式。
Firstly, combined with McCaffreys empirical formulas for plume entrainment, the calculation method of heat release rate of the fire source is discussed;
首先，结合羽流卷吸经验公式，讨论了火源释热速率的计算方法；
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.
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。
The zone model could still be used to simulate the smoke movement in large Spaces. For the pool fire, the calculation model should be selected based on the heat release rate.
计算结果和试验结果对比表明，在大空间内仍可利用火灾区域模拟方法计算烟气的运动。
The zone model could still be used to simulate the smoke movement in large Spaces. For the pool fire, the calculation model should be selected based on the heat release rate.
计算结果和试验结果对比表明，在大空间内仍可利用火灾区域模拟方法计算烟气的运动。
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