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Study on the Method of Stack Effect Mitigation by the Elevator Shaft Pressurization at High-rise Buildings  

Kim, Jin-Soo (전주대학교 대학원 소방안전공학과)
Lee, Eui-Pyeong (전주대학교 대학원 소방안전공학과)
Publication Information
Fire Science and Engineering / v.25, no.6, 2011 , pp. 178-183 More about this Journal
Abstract
In cold season, the elevator systems in super high-rise buildings would make noises at the door-gaps on high floors, and the elevator doors on the 1st floor would suffer from opening/closing trouble due to the pressure differences. Such pressure differences are also the main driving power of smokes through the hoistway in the case of fire. In addition, the pressure differences should be overcome to use the elevator systems as a measure of emergency escape. This paper reviews the way of hoistway pressurization to reduce the adverse influences. Simulations achieved a good result close to the requirements of NFPA 92A and IBC 2012 under the condition that the hoistway should be pressurized after pressure equalizing between floors and hoistway with the openings through the hoistway wall.
Keywords
Stack effect; shaft; Pressure difference; Opening; Pressurization; Hoistway;
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  • Reference
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2 NFPA 92A:2006, NFPA, Quincy, MA.
3 IBC 2012, International Code Council, Washington, DC.
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