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Study of Smoke Behavior and Differential Pressure in the Refuge Safety Area According to Damper Capacity of Smoke Control  

Lee, Jae-Bin (중앙대학교 기계공학부)
Moon, Joo-Hyun (중앙대학교 기계공학부)
Lee, Seong-Hyuk (중앙대학교 기계공학부)
Ryou, Hong-Sun (중앙대학교 기계공학부)
Publication Information
Fire Science and Engineering / v.25, no.4, 2011 , pp. 103-109 More about this Journal
Abstract
In this study, we calculated the smoke movement at the fire area of the refuge floor which has the refuge safety area in case of fire in the high rise building by using a computational fluid dynamics (CFD) code of FLUENT (ver. 13.0). The buoyancy plume was applied using the temperature and flow velocity which represent 10 MW heat release rate in order to describe the fire, and the smoke movement was predicted using a species conservation equation. The pressurization system of smoke control was adopted with smoke control damper in refuge safety area, at the result, it is confirmed that the damper capacity was enough to smoke control in which the flow rate of supply was applied 25 $m^3/s$ in the case of the door at fire area opened only, and 50 $m^3/s$ in the doors at the fire area and lobby both opened case. They were satisfied in NFSC 501-A. Even though the door of fire area closed, there were smoke leakages at the gap between the door and wall. In addition, the refugee could be isolated in the fire area when the door of fire area closed during smoke control in the case of using the high damper flow rate of supply, 50 $m^3/s$. Therefore the proper damper flow rate of supply are needed in order to prevent the damage of refugee and this study proposes the suitable condition of damper capacity according to refuge scenario.
Keywords
High rise building; Refuse safety area; Smoke control system; Differential pressure; Smoke movement;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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