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The Influence of Natural Smoke Ventilators and Wind Velocities on the Stack effect in High-rise Buildings  

Lim, Chae-Hyun (호서대학교 대학원 소방학과)
Kim, Bum-Gyu (호서대학교 대학원 소방학과)
Yeo, Yong-Ju (호서대학교 대학원 소방학과)
Park, Yong-Hwan (호서대학교 소방방재학과)
Publication Information
Fire Science and Engineering / v.22, no.4, 2008 , pp. 20-26 More about this Journal
Abstract
The performance of natural smoke ventilators in High-rise buildings was analyzed by investigating the stack effect depending on the wind velocities using CONTAMW tool. The results showed that the opening of smoke ventilators can influence on the stack effect in the building thus moving the position of the neutral plane toward the opened smoke ventilators. The outside wind velocities can move up the neutral plane toward the top of the building thus increasing pressure differentials at the bottom of the building. The smoke ventilators can maintain its normal performance without outside wind, however, strong outside wind can prevent natural smoke exhaust due to the infiltration of outside air at the ventilators.
Keywords
Stack effect; Wind velocity; High-rise building; Natural smoke ventilator; CONTAMW;
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