Kitchen hob fires present a potential threat to occupants escaping from dwellings and calculations may be needed to assess the hazard. Determination of the thermal heat flux from flames to a target can be achieved through the use of hand calculation methods or computational tools. This article compares point source, parallel plane and cylindrical view factor hand calculations and computational simulations using B-RISK and Fire Dynamics Simulator of thermal heat flux with kitchen hob fire experiments presented in the literature. Knowing the level of accuracy of each method provides useful information to designers. Although the point source model is influenced by whether the radial distance is measured perpendicular to the heat flux target or is offset relative to the centre of the flame, the article concludes that it provides an adequate approach for the calculation of thermal heat flux in the case of kitchen hob fires.

中文翻译：

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模拟厨房炉灶火灾的热辐射

厨房炉灶火灾对逃离住宅的居住者构成潜在威胁，可能需要进行计算来评估危害。可以通过使用手工计算方法或计算工具来确定从火焰到目标的热通量。本文将使用 B-RISK 和 Fire Dynamics Simulator 的热热通量的点源、平行平面和圆柱视角因子手动计算和计算模拟与文献中介绍的厨房炉灶火灾实验进行比较。了解每种方法的准确度为设计人员提供了有用的信息。尽管点源模型受径向距离是垂直于热通量目标测量还是相对于火焰中心偏移的影响，