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（1 哈爾濱工業(yè)大學(xué)深圳研究生院, 深圳 518055； 2 中建科技有限公司深圳分公司, 深圳 518000）

［摘要］為了得到室內(nèi)火災(zāi)溫度，采用理論推導(dǎo)和數(shù)值模擬相結(jié)合的方法對(duì)其進(jìn)行研究。首先建立了室內(nèi)火災(zāi)溫度場(chǎng)的數(shù)值模擬方法，以Steckler開(kāi)口流動(dòng)試驗(yàn)數(shù)據(jù)作為參考，對(duì)比軟件FDS模擬室內(nèi)火災(zāi)開(kāi)口流動(dòng)的準(zhǔn)確性及適用性；其次通過(guò)火災(zāi)室內(nèi)熱煙氣層的熱平衡得到了室內(nèi)火災(zāi)溫度的基本公式，公式體現(xiàn)了影響室內(nèi)溫度的相關(guān)因素；最后采用火災(zāi)場(chǎng)分析軟件FDS建立多種火災(zāi)情況模型，從而得到火災(zāi)室內(nèi)熱煙氣層溫度，進(jìn)而得到基本公式中相關(guān)參數(shù)的取值。分析表明：室內(nèi)火災(zāi)溫度隨著火源熱釋放速率的增加而增大，隨著圍護(hù)結(jié)構(gòu)的有效熱傳遞系數(shù)和通風(fēng)口尺寸的增加而減小。

［關(guān)鍵詞］室內(nèi)火災(zāi)； 火災(zāi)溫度； 熱平衡； FDS； 預(yù)測(cè)分析

中圖分類號(hào)：TU352-1文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2017)23-0046-04

Prediction analysis of indoor fire temperature

Wang Hongxin1,2, Zha Xiaoxiong1

(1 Harbin Institute of Technology Shenzhen Graduate School, Shenzhen 518055, China; 2 Shenzhen Branch, China Construction Science & Technology Group Co.， Ltd.， Shenzhen 518000， China)

Abstract:Theoretical derivation and numerical simulation method were combined to study the temperature of indoor fire. Firstly,  taking steckler open flow test data as a reference, numerical simulation method of temperature field of indoor fire was established  to compare with the accuracy and applicability of FDS simulation of indoor fire opening flow; secondly the basic formula of indoor fire temperature was obtained by heat balance of hot smoke layer in indoor fire, and the formula reflected the related factors affecting the indoor temperature; finally,  fire field analysis software FDS was used to establish a variety of fire models to get hot smoke layer temperature in indoor fire, and then the values of the relevant parameters in the basic formula were determined. The results show that the indoor fire temperature increases with the increase of the heat release rate of the fire source, and decreases with the increase of the effective heat transfer coefficient of the envelope and the size of the vent.

Keywords:indoor fire; fire temperature; heat balance; FDS; prediction analysis

*深圳市原創(chuàng)項(xiàng)目研發(fā)資助（YC2015020）。

作者簡(jiǎn)介：王洪欣，博士，高級(jí)工程師，一級(jí)注冊(cè)結(jié)構(gòu)工程師，Email:wanghongxin15@163.com。