Thermal Responses of Sprinkler Heads in Hot Air Stream with Speed Less Than 1 ms-1

Fire Science and Technology

W. K. Chow²  P. L. Ho¹ 

[1] Associated Consulting Engineers, Hong Kong;Dept. of Building Services Engineering, Hong Kong Polytechnic, Hong Kong

关键词: Self-heatings;    Potato chip;    TG-DSC;    Apparent activation energy;    Thermal ignition;   

DOI  :  10.3210/fst.12.1_7

学科分类：环境科学（综合）

来源: Tokyo University of Science * Center for Fire Science and Technology for Building

【 摘 要 】

References(16)Cited-By(2)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.

【 授权许可】

Unknown