發(fā)布時間：2018-02-10 12:45

  本文關(guān)鍵詞： 汽車火災(zāi) 火災(zāi)蔓延 火場溫度　出處：《消防科學(xué)與技術(shù)》2017年07期 　論文類型：期刊論文

【摘要】：為探究汽車燃燒特性以及對相鄰車輛的影響,通過點燃浸有汽油的海綿引燃發(fā)動機,對兩輛平行反向放置的三廂式小汽車進(jìn)行全尺寸燃燒實驗。火災(zāi)實驗室長40 m、寬12.87 m、高11.87 m,兩車間距設(shè)為0.8 m。通過攝像機、熱電偶等設(shè)備獲取汽車火災(zāi)的發(fā)展過程,得到汽車內(nèi)溫度及煙氣溫度隨時間的變化。結(jié)果顯示:點燃發(fā)動機艙20 min后火蔓延至第二輛車,汽車燃燒29 min后火勢達(dá)到最大;火焰在汽車內(nèi)部蔓延的速度低于在車頂?shù)穆铀俣?汽車內(nèi)測得的最高溫度為900℃,實驗室空間各個測點測得的煙氣最高溫度為89~185℃。
[Abstract]:To investigate the combustion characteristics of cars and their effects on adjacent vehicles, ignition engines are ignited by igniting a sponge impregnated with gasoline. A full-scale combustion experiment was carried out on two three-compartment cars with parallel reverse placement. The fire laboratory was 40 m long, 12.87 m wide, 11.87 m high and 0.8 m apart. The development process of vehicle fire was obtained by means of camera, thermocouple and other equipment. The results show that the fire spread to the second vehicle after 20 min of ignition engine cabin, and the maximum fire intensity is reached after burning for 29 min. The velocity of flame spread inside the automobile is lower than that on the roof, the maximum temperature of the automobile is 900 鈩，

本文編號：1500543