Abstract
This paper reports the velocity dependent nature of the effective operating temperature of a liquid-in-glass type of sprinkler head. Experimental studies is carried out using a specially designed heated wind tunnel for studying thermal responses of sprinkler heads. The tunnel is similar to the one developed at the Fire Research Station, United Kingdom. With it, two tests: plunge and ramp test, are carried out to investigate the thermal responses of the sprinkler head. Especially, thermal responses at low air speed are investigated in details. About one hundred sprinkler heads are studied and results on different defined time indices are correlated with this fairly large sample size.
© 1992 Center for Fire Science and Technology, Research Institute for Science and Technology, Tokyo University of Science
