Back
 OJFD  Vol.7 No.2 , June 2017
Study of Numerical Analysis on Smoke Exhaust Performance of Portable Smoke Exhaust Fan
Jung-Yup Kim
Show more
Abstract: In houses and general buildings of environment where smoke control equipment is not installed, or its operation is difficult, there is a need to develop and utilize a portable smoke exhaust fan that can perform emergency ventilation in case of fire suppression and rescue operations. As a part of the development process for portable smoke exhaust fans, a numerical analysis model of the portable smoke exhaust fan was derived from the building in which a fire occurred, and an analysis on the smoke and toxic gas exhaust effects was performed in this study. The numerical analysis results showed that under a condition where the height of an opening is less than 1.0 m after fire source disappears in a situation where the smoke exhaust fan does not operate, smoke does not come out well, and thus the density of smoke within the target area does not drop significantly. On the other hand, if the smoke exhaust fan operates after the fire source disappears, smoke is directly exhausted to the outside due to the operation of the smoke exhaust fan, and the smoke density within the space drops sharply in all opening height conditions, thereby getting close to zero.
Keywords: Smoke Exhaust; Portable Fan, Smoke Density, CO Density, Numerical Analysis
Cite this paper: Kim, J. (2017) Study of Numerical Analysis on Smoke Exhaust Performance of Portable Smoke Exhaust Fan. Open Journal of Fluid Dynamics, 7, 205-218. doi: 10.4236/ojfd.2017.72014.
References

[1]   Hall, J.R. (2009) Fatal Effects of Fire, NFPA.

[2]   MPSS, NFSC 501 (2016) Fire Safety Standard of Smoke Control Facilities.

[3]   BSI, BS EN 12101-3:2015 (2015) Smoke and Heat Control Systems—Part 3: Specification for Powered Smoke and Heat Control Ventilators (Fans).

[4]   ASHRAE, ANSI/ASHRAE Standard 149-2013 (2013) Laboratory Methods of Testing Fans Used to Exhaust Smoke in Smoke Management Systems.

[5]   Sheard, A.G. and Jones, N.M. (2012) Powered Smoke and Heat Exhaust Ventilators: The Impact of EN 12101-3 and ISO 21927-3. Tunnelling and Underground Space Technology, 28, 174-182.

[6]   Jie, J., Kaiyuan, L., Wei, Z. and Ran, H. (2010) Experimental Investigation on Influence of Smoke Venting Velocity and Vent Height on Mechanical Smoke Exhaust Efficiency. Journal of Hazardous Materials, 177, 209-215.

[7]   Yan, S.X., Wu, X.P., and Wang, D. (2011) Study of the Performance of Smoke Control under Non-Uniform Smoke Exhaust Velocity. Procedia Engineering, 11, 385-393.

[8]   He, X.Z., Lu, S.X., Zhang, B.S., and Li, C.H. (2016) Effects of Supply-Exhaust Ratio on Smoke Exhaust Efficiency in a Large Machinery Space. Procedia Engineering, 135, 469-475.

[9]   NIST (2016) Fire Dynamic Simulator User’s Guide.

 
 
Top