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http://dx.doi.org/10.5762/KAIS.2018.19.1.85

The Study on the Effect of Elevator Movement on the Pressure Difference between Vestibule and Living room in High-rise Buildings  

Park, Younggi (Department of Mechnical System Engineering, Chung-Ang University)
Hong, Kibea (Department of Mechanical Engineering, Transportation of University)
Ryou, Hong Sun (Department of Mechnical System Engineering, Chung-Ang University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.19, no.1, 2018 , pp. 85-91 More about this Journal
Abstract
Recently, there have been a lot of casualties due to fires in high-rise buildings. The toxic gases and smokes generated by fires in high-rise buildings spread rapidly through the elevator shaft and stairwell, due to the stack effect, and can cause critical casualties. To reduce the number of casualties, smoke control systems have been introduced. Smoke control systems play an essential role in preventing the spread of smoke in high-rise buildings and securing the evacuation route. Also, in high-rise buildings, evacuation by an elevator is considered to be indispensable. However, the pressure field in the shaft is strongly disturbed when the elevator is moving and this can affect the performance of the smoke control system. Therefore, in this study, we experimentally and numerically analyzed the effect of elevator movement on the pressure difference between the vestibule and living room by building a model using the sandwich pressurization method based on the performance based design. To consider the leakage areas in high-rise buildings, e.g. the windows, fire door and elevator, the National Fire Safety Codes and area ratio were used. The elevator speed in the model building was varied between 20 m/s and 100 m/s corresponding to a real elevator speed of 7 m/s~17 m/s. As a result, the relationship between the pressure difference and elevator speed was found to be ${\Delta}P=40{\cdot}{\exp}$(-Ves /-104.7)-23.735. This result can be used to take into consideration the effect of elevator movement when designing smoke control systems.
Keywords
Elevator movement; High-rise building; Pressure difference between vestibule and living room; Smoke control system; Sandwich pressurization method;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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