通风空调风管中聚集物燃烧的温度变化模拟研究  

Simulation and Study on the Temperature Change of Sediment Burning in Ventilation Ducts

作　　者：张海英[1] 龙激波[2] 

机构地区：[1]广州白云国际机场股份有限公司,广州510470 [2]湘潭大学土木工程与力学学院,湘潭411105

出　　处：《广州建筑》2011年第3期33-37,共5页GUANGZHOU ARCHITECTURE

摘　　要：通风空调系统风管中的聚集物可以引发火灾,并且风管的存在成为火灾在建筑物内蔓延的重要途径之一。为研究风管中聚集物燃烧过程的温度变化情况,利用火灾动态模拟软件FDS对其进行模拟研究,结果显示风管内的通风风速、风管断面尺寸和聚集物的燃点对燃烧时的最高温度具有较大的影响,相比之下聚集物的堆积厚度对燃烧时的最高温度影响较小,但堆积厚度对燃烧的持续时间有较大的影响。Sediment in the duct Of ventilation and air conditioning system can lead to fire. Meanwhile, the ventilation duct is one of the most important ways to spread the fire in the building. To study the temperature change during process of sediment burning in the duct, the fire dynamics simulator （FDS） is used. Results show that the ventilation velocity, duets dimension and sediment ignition points have obvious impact on the highest temperature, while the sediment thickness have less infection on it the highest temperature but have relatively more effect on the burn- ing duration time.

关 键 词：风管 聚集物 燃烧 温度场 

分 类 号：TU831.4[建筑科学—供热、供燃气、通风及空调工程]