Abstract
A model for predicting buming behavior in multi-room buildings is developed with emphasis on room-to-room fire spread. In the model, building fire is considered as an ensemble of multiple room fires, and a one-zone method is applied to simulate the fire behavior of component rooms. The spread of fire is described as the ignition of combustible due to heat transfer from (1) hot gas of adjacent compartment involved in fire, and (2) external flame ejected from downstairs compartment. A model of bum-through of partitioning walls/doors, which may result the increase in the mass and heat transport, is also introduced. The fire behaviors in a building composed of eleven rooms ale simulated. The results are compared with the full scale experimental data in a literature, showing reasonable agreement after some adjustments of the unknown bum-through temperatures T_<BT>-and bum-through rate coefficientχ_<BT> of wall/door materials.
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