Prediction of Smoke flow Property in Fire Building Using Mechanical Smoke Extraction

Abstract:

The research background of smoke flow property prediction system in fire building based on the network model was expounded. Then a major problem of concerned technology was found and solved. Based on the original network model of building fire smoke flow, the expressions related to opening installing ventilator were amended. The new expressions replaced the original negative mass expressions, and a solvable algebra equation set was obtained. Fire smoke flow property was calculated by the algebra equations set. Predicting software developed independently by Chongqing University for fire smoke flow property of high building was modified. As a result, smoke flow property in fire building using mechanical smoke extraction can be simulated.

Key words:fire; network model; smoke flow property