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The Transfer Characteristics of $CO_2$ Extinguishant According with the Location of Fire Plume  

박찬수 (목포해양대학교 기관공학부)
최주석 (목포대학교 기계공학과 대학원)
Publication Information
Fire Science and Engineering / v.17, no.4, 2003 , pp. 28-35 More about this Journal
Abstract
To analyze the transfer characteristics of $CO_2$ extinguishant when extinguishant is injected into a closed space similar to a marine engine room, a numerical simulation was performed. Flow and Concentration fields are calculated according with the variation of the fire plume,s location. The results show that tile variation of fire plumes, location greatly effected on the flow patterns and the characteristics of $CO_2$ extinguishant transfer. In case of the fire plume located at left region of the 2nd floor center in the engine room consisted of first and second floor, The effects similar to the air curtain is found and cut off the mass transfer. In the characteristics with hight, the iso-concentration line below the extinguishable limit is formed in the left region of the 1st and 2nd floor center after the $CO_2$ extinguishant is completely injected. therefore I think that the results of this study are considered to arrange the $CO_2$ injection nozzles for the $CO_2$ fire fighting equipments.
Keywords
Fire plume simulation; $CO_2$ extinguishant; Mass Transfer;
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