Browse > Article
http://dx.doi.org/10.7731/KIFSE.2014.28.5.030

Numerical Study on Air Egress Velocity in Vestibule Pressurization System : Characteristics of Air Flow in the Vestibule with Multiple Fire Doors in an Apartment Building  

Seo, Chanwon (Department of Mechanical Engineering, Chungnam National University)
Shin, Weon Gyu (Department of Mechanical Engineering, Chungnam National University)
Publication Information
Fire Science and Engineering / v.28, no.5, 2014 , pp. 30-36 More about this Journal
Abstract
The pressurized smoke control system in the vestibule is important for fire safety in buildings because it is concerned with egress time of people and the safety of fire fighters. The vestibule pressurization system can prevent smoke from entering the vestibule using differential pressure when fire doors are closed and using the egress velocity when fire doors are open. Air supplying units in the vestibule need to be arranged by taking account of the location of doors and the volume of the vestibule in order to assure the uniform air egress velocity through a fire door when it is open. In this study, computational fluid dynamics (CFD) simulations were conducted for the vestibule where multiple doors are installed and it was found that the reverse flow occurs when the damper position in vestibule is not appropriate.
Keywords
Pressurization system; Vestibule; CFD; Smoke control;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
연도 인용수 순위
1 National Fire Safety Code 501A, National Emergency Management Agency (2013).
2 S. H. Ryu, S. K. Lee, D. H. Hong and K. R. Choi, "Characteristics of Air Egress Velocity in Vestibule Pressurization System Using the Fire Dynamics Simulator", Journal of Korean Institute or Fire Science & Engineering, Vol. 24, No. 6, pp. 153-159 (2010).   과학기술학회마을
3 J. Y. Kim, D. H. Lee and H. Y. Kim, "Numerical Analysis on Features of Airflow through Open Door in Pressure Differential System", Proceedings of 2008 Winter Annual Conference, The Society of Air-conditioning and Refrigerating Engineers of Korea, pp. 463-468 (2008).
4 C. W. Lee, H. J. Kim, Y. K. Choi, M. C. Youm and H. S. Ryou, "A Study on the Conditions of Injection Pressurization in the Smoke-Control Zone II. Analysis of the Conditions for Closing Force of Fire Door with Variation of Angular Velocity", Journal of Korean Institute or Fire Science & Engineering, Vol. 27, No. 2, pp. 6-10 (2013).   과학기술학회마을   DOI
5 W. J. You, G. H. Ko, S. H. Sakong, J. S. Nam and H. S. Ryou, "An Analysis on the Major Parameter and the Relations of Pressure Difference Effect of Leakage Area in the Smoke-Control Zone", Journal of Korean Institute or Fire Science & Engineering, Vol. 27, No. 1, pp. 20-25 (2013).   과학기술학회마을   DOI
6 H. Huang, R. Ooka, H. Chen and S. Kato, "Optimum Design for Smoke-Control System in Buildings Considering Robustness Using CFD and Genetic Algorithms", Building and Environment, Vol. 44, No. 11, pp. 2218-2227 (2009).   DOI
7 M. Son, H. Park, M. Park, J. Wang and W. G. Shin, "Silver Nanowire Penetration through Screen Filter", Aerosol Science and Technology, Vol. 48, No. 5, pp. 480-488 (2014).   DOI
8 ANSYS Co., "ANSYS Ver.15.0" (2013).
9 J. Y. Kim and H. J. Shin, "Numerical Analysis on Pressurization System of Smoke Control in Consideration of Flow Rate of Supply and Leakage", Journal of Korean Institute or Fire Science & Engineering, Vol. 24, No. 5, pp. 87-93 (2010).   과학기술학회마을