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International Heat Transfer Conference 13

ISBN Druckformat: 1-56700-226-9 (CD)
ISBN Online: 1-56700-225-0

CORRELATING EXPERIMENTAL DATA ON WATER MIST FIRE SUPPRESSION SYSTEM

DOI: 10.1615/IHTC13.p26.250
page 10

N. Zhu
The Hong Kong Polytechnic University, Hong Kong

Nai-kong Fong
Research Centre for Fire Engineering, Department of Building Services Engineering, The Hong Kong Polytechnic University, Hong Kong, China

W.K. Chow
Research Centre for Fire Engineering, Department of Building Services Engineering, The Hong Kong Polytechnic University, Hong Kong, China

Abstrakt

In evaluating the performance of water mist fire suppression systems, extinguishing time is identified to be the key factor. Correlation relations of extinguishing time with heat release rate were derived in this paper. Results from twelve sets of full-scale tests reported in the literature were reviewed. High, intermediate and low pressure systems were considered.
Correlations for high and low pressure systems with and without ventilation were derived. Because of data limitation for intermediate pressure system, correlation was derived only for no ventilation condition. A total of five polynomials were fitted.
It is observed that the extinguishing time is proportional to the heat release rate for liquid fires. Room air temperature after fire extinguishment increases with the heat release rate. Such correlation was derived from the best fitting with limited data available on liquid fires.

IHTC-13 Digital Library

Measurement of fluid temperature with an arrangement of three thermocouples FLOW BOILING OF A HIGHLY VISCOUS POLYMER SOLUTION