- 摘 要
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（1 哈爾濱工業(yè)大學深圳研究生院, 深圳 518055； 2 中建科技有限公司深圳分公司, 深圳 518000）
［摘要］為了得到室內火災溫度，采用理論推導和數值模擬相結合的方法對其進行研究。首先建立了室內火災溫度場的數值模擬方法，以Steckler開口流動試驗數據作為參考，對比軟件FDS模擬室內火災開口流動的準確性及適用性；其次通過火災室內熱煙氣層的熱平衡得到了室內火災溫度的基本公式，公式體現了影響室內溫度的相關因素；最后采用火災場分析軟件FDS建立多種火災情況模型，從而得到火災室內熱煙氣層溫度，進而得到基本公式中相關參數的取值。分析表明：室內火災溫度隨著火源熱釋放速率的增加而增大，隨著圍護結構的有效熱傳遞系數和通風口尺寸的增加而減小。
［關鍵詞］室內火災； 火災溫度； 熱平衡； FDS； 預測分析
中圖分類號：TU352-1文獻標識碼：A文章編號：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)項目研發(fā)資助（YC2015020）。
作者簡介：王洪欣，博士，高級工程師，一級注冊結構工程師，Email:wanghongxin15@163.com。
