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The Effect of Nozzle's Location & Injection Angle on the Characteristics of Air Flow and $CO_2$ Extinguishant Transfer  

박찬수 (목포해양대학교 기관공학부)
Publication Information
Journal of Advanced Marine Engineering and Technology / v.26, no.4, 2002 , pp. 472-484 More about this Journal
Abstract
To analyze the characteristics of air flow and $CO_2$ extinguishant transfer when extinguishant is injected into a closed space similar to marine engine room, a numerical simulation on a space was performed. Flow fields and $CO_2$ concentration fields are calculated according with the variation of the location & injection angle of nozzles. The results of simulation showed that the pattern of recirculation flow was affected greatly with the location & injection angle of nozzles and such a recirculation flow accelerated mass transfer of $CO_2$ and greatly affected the diffusion process of $CO_2$ extinguishant. It is considered that this result of this study can be useful to designing the arrangement of nozzles for the $CO_2$ fire fighting equipments in a marine engine room.
Keywords
$CO_2$extinguishant; nozzle location & injection angle; Recirculation f1ow;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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