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Performance Evaluation of a Natural Smoke Ventilator in Jeju
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  • Journal title : Fire Science and Engineering
  • Volume 30, Issue 1,  2016, pp.6-11
  • Publisher : Korea Institute of Fire Science and Engineering
  • DOI : 10.7731/KIFSE.2016.30.1.006
 Title & Authors
Performance Evaluation of a Natural Smoke Ventilator in Jeju
Lim, Chae-Hyun;
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 Abstract
This study analyzed the performance of smoke exhaustion installed to secure the life safety from the smoke each opening modes, as performing the simulation on the Jeju regions generating to strong windy using CONTAM. We assessed the effectiveness of the system under conditions of high external winds as well as an ambient wind conditions. It also assessed the relative effectiveness of opening all vents versus opening only those vents which served rooms in which the fire was located. This study revealed external winds exerted a substantial impact on the performance of the smoke ventilation system. It was found that opening the ventilation system in the room containing the fire resulted in a greater performance than opening vents in both fire in all rooms. The reduced performance of the smoke ventilation system upon the opening of all vents is thought to be due to the intrusion of outside air, and the establishment of unfavorable air circulation, caused by the negative pressure generated in the building.
 Keywords
Stack effect;Wind effect;Neutral plane;Natural smoke ventilator;CONTAM;
 Language
Korean
 Cited by
 References
1.
C. H. Lim, B. G. Kim, Y. J. Yeo and Y. H. Park, "The Influence of Natural Smoke Ventilators and Wind Velocities on the Stack Effect in High-rise Buildings", Fire Science and Engineering, Vol. 22, No. 4, pp. 20-26 (2008).

2.
C. H. Lim, B. G. Kim and Y. H. Park, "Mass Flow Rates and Performance of Natural Smoke Ventilators in High-rise Buildings", Fire Science and Engineering, Vol. 23, No. 6, pp. 91-97 (2009).

3.
MOLIT, "Regulation for Facility in Building", Ministry Land, Infrastructure and Transport (2015).

4.
NIST, "CONTAM User Guide and Program Documentation", National Institute of Standards and Technology, p. 139 (2013).

5.
MOLIT, "Building Energy-saving Design Standards", Ministry of Land, Infrastructure and Transport (2014).

6.
C. H. Lim, "The Influence of Natural Smoke Ventilators on the Stack Effect and Smoke Control in High-rise Building Fires", Hoseo University PhD Thesis, p. 77 (2008).

7.
NFPA, "NFPA92A, Standard for Smoke-Control Systems Utilizing Barriers and Pressure Differences", National Fire Protection Association, p. 22 (2006).

8.
J. H. Jo, "Prediction of Pressure Distribution due to Stack Effect in High-rise Residential Buildings and Evaluation of its Impact", Seoul University PhD Thesis, p. 77 (2005).