Publisher : The Korean Society of Mechanical Engineers
DOI : 10.22634/KSME-B.19184.108.40.2064
Title & Authors
Experimental study of extinguishment of the pure diffusion flame using water spray Jang, Yong-Jae; Kim, Myeong-Bae; Kim, Jin-Guk;
This study describes extinguishment mechanism of the purely buoyant diffusion flame using the water spray. Experiments are systematically carried out for the oul pool fire with the six different atomizing nozzles. From the measurement of burning rate which represents the combustion intensity of fire, it is observed that the water spray is able to act to enhance fire rather than to extinguish fire. The air entertainment due to the water spray is visualized to understand this phenomenon, acting to enhance fire. In order to observe effects of droplet size on fire extinguishment, and amount of water which reaches the flame base, fuel surface, and mean diameter of droplets are measured. When water droplets are too small, they do not reach the flame base because they can the water spray having too small doplets is ineffective for extinguishment of the oil fire.