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http://dx.doi.org/10.7731/KIFSE.2018.32.4.007

Evaluation of Design Fire Curves for Gas Fires in a Compartment Using CFAST  

Baek, Bitna (Dept. of Safety Engineering, Pukyong National University)
Oh, Chang Bo (Dept. of Safety Engineering, Pukyong National University)
Hwang, Cheol-Hong (Dept. of Safety Engineering, Pukyong National University)
Publication Information
Fire Science and Engineering / v.32, no.4, 2018 , pp. 7-16 More about this Journal
Abstract
In this study, the prediction performance of design fire curves (DF) was evaluated for gas fires in a compartment by using CFAST. The CFAST simulations adopted the 2-stage DF suggested by the previous study and the Quadratic and Exponential DF suggested by Ingason. It was found by comparing the simulation and experimental results that the overall prediction performance of the design fire cures for the spatially-averaged temperature and concentrations of $O_2$ and $CO_2$ was, from the most reasonable to the most inaccurate, 2-stage DF > Quadratic DF > Exponential DF. The CFAST simulation could not predict for the difference in the spatially-averaged temperature and concentrations of $O_2$ and $CO_2$ at door and inner side locations in a compartment. The CFAST simulations also showed a limitation in the prediction of the spatially-averaged temperature at lower layer and the concentration of CO.
Keywords
Design fire curve; Consolidated model of fire growth and smoke transport (CFAST); Compartment fire; Gas fuel fire;
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Times Cited By KSCI : 2  (Citation Analysis)
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