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http://dx.doi.org/10.7731/KIFSE.2014.28.4.029

Numerical Study on the Validity of Scaling Law for Compartment Fires  

Ko, Gwon-Hyun (Dept. of Architecture and Fire Protection Administration, Dongyang Univ.)
Publication Information
Fire Science and Engineering / v.28, no.4, 2014 , pp. 29-34 More about this Journal
Abstract
In this study, to assess the validity of scaling law which was based on the ventilation factor and utilized in fields of compartment fires, numerical simulations were conducted on full- and 2/5 reduced-scale compartment fires using FDS and simulation results were compared with the previously published experimental data. The numerical modeling used in this study was verified by comparing the predicted temperature at several points of the upper layer with the experiment data. Temperature and concentration distribution inside of compartments and velocity profile at door of compartment are analyzed to assess the validity of scaling law. Comparison between the predicted results on the full- and reduced-scale compartments shows good agreements on the inner compartment flow patterns, outflowing flame patterns from the compartments, and vertical temperature distributions.
Keywords
Compartment fires; Scaling law; FDS simulation; Ventilation factor;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 G. H. Ko and C. H. Hwang, "Mixture Fraction Analysis on the Combustion Gases of the Full-Scale Compartment Fires", Journal of Korean Institute of Fire Science & Engineering, Vol. 24, No. 5 pp. 128-135 (2010).   과학기술학회마을
2 W. D. Walton and P. H. Thomas, "Estimating Temperatures in Compartment Fires", Section 3, SFPE Handbook of Fire Protection Engineering, 2002.
3 W. M. Pitts, N. P. Bryner and E. L. Jonhsson, "Combustion Product Fromation in Under and Overventilated Full-Scale Enclosure Fires", Proceedings of Combustion Fundamentals and Applications, pp. 565-570 (1995).
4 N. P. Bryner, E. L. Johnsson and W. M. Pitts, "Carbon Monoxide Production in Compartment Fires - Reduced- Scale Enclosure Test Facility", NIST IR 5568, NIST (1994).
5 K. B. McGrattan, S. Hostikka, J. E. Floyd, H. R. Baum and R. G. Rehm, "Fire Dynamics Simulator (Version 5), Technical Reference Guide", NIST SP 1018-5, NIST (2007).
6 M. Bundy, A. Hamins, E. L. Johnsson, S. C. Kim, G. H. Ko and D. B. Lenhert "Measurements of Heat and Combustion Products in Reduced-Scale Ventilation-Limited Compartment Fires", NIST TN 1483, NIST (2007).
7 P. Blomqvisf and A. Lonnermark, "Characterization of the Combustion Products in Large-Scale Fire Tests; Comparison of Three Experimental Configurations", Fire and Materials, Vol. 25, pp. 71-81 (2001).   DOI   ScienceOn
8 J. Q. Quintiere, W. J. Rinkinen and W. W. Jones, "The Effect of Room Opening on Fire Plume Entrainment", Combustion Science and Technology, Vol. 26, pp. 193-201 (1981).   DOI
9 C. L. Beyler, "Major Species Production by Diffusion Flames in a Two-Layer Compartment Fire Environment", Fire Safety Journal, Vol. 10, pp. 47-56 (1986).   DOI   ScienceOn
10 W. M. Pitts, "The Global Equivalence Ratio Concept and the Formation Mechanism of Carbon Monoxide in Enclosure Fire", Progress in Energy and Combustion Science, Vol. 21, pp. 197-237 (1995).   DOI   ScienceOn
11 R. G. Gann, J. D. Averill, E. L. Johnsson, M. R. Nyden and R. D. Peacock, "Smoke Compartment Yields from Room-Scale Fire Tests", NIST TN 1453, NIST (2003).
12 G. H. Ko, "Prediction Performance of FDS on the Carbon Monoxide Production in the Under-Ventilated Fires", Journal of Korean Institute of Fire Science & Engineering, Vol. 25, No. 5, pp. 93-99 (2011).   과학기술학회마을