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An Experimental Study on the Determination of the Flow Rate for a Feasible $N_2$ Generator to Extinguish the Fire  

Jang, Young-Keun (용인송담대학 건축소방설비과)
Kim, Duk-Joo (용인송담대학 건축소방설비과)
Suh, Byung-Taek (용인송담대학 건축소방설비과)
Publication Information
Fire Science and Engineering / v.24, no.6, 2010 , pp. 54-60 More about this Journal
Abstract
An experimental study has been carried out to determine the flow rate for a feasible N2 generator to extinguish the fire, and this study analogized the correlations to determine the flow rate for $N_2$ generator considered an Oxygen concentration, protected enclosure, discharging pressure and discharging time. We manufactured simple protected enclosure for analyzing fire-extinguishing performance of the $N_2$ generator. As a $N_2$ gas is exhausted on protected enclosure, a various of Oxygen concentration is measured to analyze fire-extinguishing performance experimentally. The correlations determined as an uncertainty analysis for the Oxygen concentration deviations of the theoretical and experimental value. The analogized correlations is Q = (21 $\times$ V)/($O_2+{\zeta}{\cdot}P$)-V. In case of $300m^3$ protected enclosure, 0.8 MPa discharging pressure and $40m^3$/min $N_2$ flow rate, the Oxygen concentration is decreased below 15% within 3 minutes.
Keywords
$N_2$ generator; $N_2$ gas; Natural extinguishing system; Halon; Oxygen concentration;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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