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Prediction Performance of FDS on the Carbon Monoxide Production in the Under-Ventilated Fires  

Ko, Gwon-Hyun (동양대학교 건축소방행정학과)
Publication Information
Fire Science and Engineering / v.25, no.5, 2011 , pp. 93-99 More about this Journal
Abstract
In the present study, a numerical simulation was conducted to estimate the prediction performance of FDS on the carbon monoxide production in the under-ventilated compartment fires. Methane and heptane fires located in the a 2/5 scale compartment based on the ISO-9705 standard room was simulated using FDS Ver. 5.5. Through the comparison between the computed results and the earlier published experimental data, the performance of FDS was estimated on the predictions of the combustion gases concentration in the hot upper layer of the compartment and the effects of CO yield rate on the estimation of CO production at local points were analyzed. From the results, it was known that FDS Ver. 5.5, in which the two-step reaction mixture fraction model implemented, was more effective on the prediction of CO concentration compared to the previous FDS version. In addition, controlling CO yield rate made the predicted CO concentration get closer to the experimental data for the fires of the under-ventilated condition.
Keywords
Under-ventilated fires; FDS; Carbon monoxide; Mixture fraction; Yield rate;
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Times Cited By KSCI : 2  (Citation Analysis)
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