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Effect of Positive Pressure Ventilator Tilting Angle on the Flame Suppression and Smoke Density  

Kim, Sung-Won (충북대학교 안전공학과)
Lee, Kyoung-Duck (충북대학교 안전공학과)
Shin, Chang-Sub ((주)거송시스템)
Publication Information
Fire Science and Engineering / v.20, no.4, 2006 , pp. 135-142 More about this Journal
Abstract
The experiment applied Positive Pressure Ventilation to rapidly exhaust heat and smoke inside the construction in the fire was done. Changes of heat discharge and smoke density were measured, with the various blowing condition like a fan tilting angle to find the effect of the parameter. Experimental apparatus were with PPV and water mist system for better efficiency, and investigate the effect of heat discharge and smoke removal. In the experiment, flame temperature has decreased when PPV was applied. Smoke density, generated from fire also decreased dramatically and the efficiency showed the highest rate at $0^{\circ}$ tilting angle. In addition, combination of PPV and water mist system highly improved the efficiency of evacuation on heat and smoke density, clearly was influenced by the tilting angle.
Keywords
Positive Pressure Ventilation; Water mist; Fire suppression; Tilting angle;
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