Calculating Method for Fire Plume Centerline Temperature

杜二峰; 舒赣平; 张欣欣; 吕晓

doi:10.13409/j.cnki.jdpme.2016.03.002

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Calculating Method for Fire Plume Centerline Temperature

更新时间：2025-12-11

- Calculating Method for Fire Plume Centerline Temperature
- Vol. 36, Issue 3, Pages: 337-342+349(2016)
- 作者机构：
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- DOI：10.13409/j.cnki.jdpme.2016.03.002
  CLC： U998.1
- Published：2016
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[1]杜二峰,舒赣平,张欣欣,吕晓.局部火灾羽流中心线温度计算模型及试验研究[J].防灾减灾工程学报,2016,36(03):337-342+349.

杜二峰, 舒赣平, 张欣欣, et al. Calculating Method for Fire Plume Centerline Temperature[J]. 2016, 36(3): 337-342+349.
[1]杜二峰,舒赣平,张欣欣,吕晓.局部火灾羽流中心线温度计算模型及试验研究[J].防灾减灾工程学报,2016,36(03):337-342+349. DOI： 10.13409/j.cnki.jdpme.2016.03.002.

杜二峰, 舒赣平, 张欣欣, et al. Calculating Method for Fire Plume Centerline Temperature[J]. 2016, 36(3): 337-342+349. DOI： 10.13409/j.cnki.jdpme.2016.03.002.

摘要

火羽流中心线温度是局部火灾作用下整个建筑中的最高温度

获得该处温度便可对结构的火灾安全性能进行初步评判。目前比较著名的羽流温度计算模型有Zukoski模型、Heskestad模型和McCaffrey模型

Zukoski模型和Heskestad模型因不适用于火焰区的温度计算而需要修正。为了验证各个模型的适用性

在室内外开展了功率为154.4、903.2kW的小型柴油油池火试验

并将试验结果与各计算模型的计算值进行对比。同时采用各模型分别对小功率、中功率和大功率火灾的羽流中心线温度进行计算对比

在对比分析的基础上给出了大空间建筑局部火灾羽流中心线温度计算公式。

Abstract

The fire in a large space building is usually localized and the peak temperature occurs in the fire plume.To conduct a preliminary evaluation of the structural behavior in fires

it is essential to obtain the plume centerline temperature.So far

a few of classic plume theory

such as Zukoski model

Heskestad model and McCaffrey model are widely used.However

Zukoski model and Heskestad model are valid only above the mean flame height.So they need to be amended in the flaming region.To determine the suitability of these calculating models

some pool fire experiments with fire power of 154.4kW and 903.2kW were carried out.At the same time

these models were used to evaluate the centerline temperature of small fire

medium fire and large fire.By analyzing the experimental data and the calculation results

a simple formula is recommended for determining the plume centerline temperature.

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references

大型民用机场航站楼建筑消防设计理念与实践 [J]. 夏令操,朱江,刘文利. 建筑科学 . 2010(11)

基于性能化的大尺度公共建筑防火策略研究 [D]. 杜兰萍. 天津大学 2007

Numerical simulation of axi-symmetric fire plumes: accuracy and limitations [J] . T.G. Ma,J.G. Quintiere. Fire Safety Journal . 2003 (5)

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