Modelling the thermal radiation from kitchen hob fires

IF 1.9 4区 工程技术 Q2 ENGINEERING, MULTIDISCIPLINARY
M. Spearpoint, C. Hopkin, D. Hopkin
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引用次数: 7

Abstract

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.
厨房灶台火灾的热辐射建模
厨房灶台火灾对逃离住宅的住户构成潜在威胁,可能需要进行计算以评估危险。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。本文将点源、平行平面和圆柱视图因子手工计算和使用B-RISK和火灾动力学模拟器进行的热通量计算模拟与文献中提出的灶台火灾实验进行了比较。了解每种方法的准确性水平为设计者提供了有用的信息。尽管点源模型受到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,但文章得出结论,它为厨房灶台火灾情况下的热通量计算提供了一种适当的方法。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Journal of Fire Sciences
Journal of Fire Sciences 工程技术-材料科学:综合
CiteScore
4.00
自引率
0.00%
发文量
14
审稿时长
2.5 months
期刊介绍: The Journal of Fire Sciences is a leading journal for the reporting of significant fundamental and applied research that brings understanding of fire chemistry and fire physics to fire safety. Its content is aimed toward the prevention and mitigation of the adverse effects of fires involving combustible materials, as well as development of new tools to better address fire safety needs. The Journal of Fire Sciences covers experimental or theoretical studies of fire initiation and growth, flame retardant chemistry, fire physics relative to material behavior, fire containment, fire threat to people and the environment and fire safety engineering. This journal is a member of the Committee on Publication Ethics (COPE).
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