A multi-layer zone model for predicting temperature distribution in a fire room  

作　　者：CHENXiaojun YANGLizhong DENGZhihua FANWeicheng 

机构地区：[1]StateKeyLaboratoryofFireScience,UniversityofScienceandTechnologyofChina,Hefei230026,China

出　　处：《Progress in Natural Science:Materials International》2004年第6期536-540,共5页自然科学进展·国际材料（英文版）

基　　金：SupportedbytheNKBRSFprojectofChina (GrantNo .2 0 0 1CB40 960 3 )

摘　　要：A multi-layer zone fire growth model is developed to predict the vertical distributions of the temperature in a single room. The fire room volume is divided into a number of horizontal layers,in which the temperature and other physical properties are assumed to be uniform. The principal equations for each laminated horizontal layer are derived from the conservation equations of mass and energy. The implemented fire sub-models are introduced, including the combustion,fluid flow and heat transfer models. Combined with these sub-models,the zone equations for the gas temperature of each layer are solved by Runge-Kutta method for each time step. The results of the sample calculations compare well with the results of experiments conducted by Steckler et al.A multi-layer zone fire growth model is developed to predict the vertical distributions of the temperature in a single room. The fire room volume is divided into a number of horizontal layers,in which the temperature and other physical properties are assumed to be uniform. The principal equations for each laminated horizontal layer are derived from the conservation equations of mass and energy. The implemented fire sub-models are introduced, including the combustion,fluid flow and heat transfer models. Combined with these sub-models,the zone equations for the gas temperature of each layer are solved by Runge-Kutta method for each time step. The results of the sample calculations compare well with the results of experiments conducted by Steckler et al.

关 键 词：compartment fire multi-layer zone model fire prediction temperature field. 

分 类 号：X928.7[环境科学与工程—安全科学]