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http://dx.doi.org/10.7731/KIFSE.2013.27.1.031

Numerical Study on the Effect of Damper Position on Characteristics of Thermal Flow at the Vestibules and Fire Door  

Moon, Hyo-Jun (School of Mechanical Engineering, Chungang Univ.)
Ko, Gwon-Hyun (Dept. of Architecture and Fire Administration, Dongyang Univ.)
Ryou, Hong-Sun (School of Mechanical Engineering, Chungang Univ.)
Publication Information
Fire Science and Engineering / v.27, no.1, 2013 , pp. 31-38 More about this Journal
Abstract
The pressurized smoke control system is important for fire safety in building because it is directly concerned with egress time of people. Even though the damper plays an essential role in the pressurized smoke control system, the phenomena of backflow smoke occurs for a certain the damper position. The research for a position of damper effects on distribution of air flow at the fire door is not performed. In this study, numerical simulation using FDS 5.5 was carried out to analyze the effect of the position of damper on flow distribution at the fire door. To simulate real situation, effects of opening and closing of fire door was considered. As a result, when HRR was between 200 kW and 400 kW, in the case which the damper was on the opposite wall of the fire door, the back flow to the vestibules was large compared to the two other cases of damper position. But when HRR was above 400 kW, Effect on damper position was not occurred.
Keywords
Pressurized smoke control system; Damper; CFD; Back flow; Air flow;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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