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http://dx.doi.org/10.7731/KIFSE.2017.31.4.059

Examination on Liquid Pool Fire Extinguishment Performance of Twin-fluid Nozzle  

Jeong, Chan Seok (Department of Fire Protection Engineering, Pukyong Nat'l University)
Lee, Chi Young (Department of Fire Protection Engineering, Pukyong Nat'l University)
Publication Information
Fire Science and Engineering / v.31, no.4, 2017 , pp. 59-64 More about this Journal
Abstract
In the present experimental study, the liquid pool fire extinguishment performance of twin-fluid nozzle was preliminarily examined. For the liquid pool fire, the ethanol of 1200 ml (volume) was prepared, and two kinds of air flow rate conditions (40 l/min and 70 l/min) were tested at the constant water flow rate condition of 632 ml/min. In the present experimental ranges, the fire extinguishment experiments were carried out using the twin-fluid nozzle and its spray characteristics (i.e., SMD (Sauter Mean Diameter) and flow distribution) were investigated. As a result, at the higher air flow rate, the liquid pool fire was extinguished quickly and successfully, which was discussed using the visualization and spray characteristics of twin-fluid nozzle. In addition, through the comparison with some of previous results, it was found that potentially, the twin-fluid nozzle can extinguish the liquid pool fire under the smaller water flow rate condition, as compared with the single-fluid nozzle.
Keywords
Twin-fluid Nozzle; Water Mist; Liquid Pool Fire; Extinguishment Performance;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
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