Applied Research on Different Plume Models of Pool Fire in Hermetically Closed Room

The pool fire mathematical model of hermetically closed room is built by different plume models, the time of smoke filling and smoke layer temperature are calculated combined with experimental heat release rate. Theoretical calculations are compared with the experimental results to verify the usefulness of different plume models. The results indicate that: in initial period of fire, the smoke filling speeds of four plume models are similar, and McCaffrey plume model is most close to physical processes; in later period of fire, Zukoski plume model is most close to physical processes of smoke filling; during the fire, the results of Thomas plume model and Zukoski plume model are almost identical, and Thomas model is more suitable for engineering application; the smoke layer temperature discrepancy between theoretical calculation and experimental data is huge, and the theoretical calculation method of temperature is not recommended for predicting temperature in engineering.