ZHOU Kuibin, LIU Jiaoyan, JIANG Juncheng. Analyses on dynamical process of high pressure combustible gas leakage and thermal hazard of jet fire[J]. CIESC Journal, 2018, (4): 1276-1287.
ZHOU Kuibin, LIU Jiaoyan, JIANG Juncheng. Analyses on dynamical process of high pressure combustible gas leakage and thermal hazard of jet fire[J]. CIESC Journal, 2018, (4): 1276-1287.DOI: 10.11949/j.issn.0438-1157.20170707.
This paper reviews the jet fire due to the leakage of combustible gas in high pressure vessels. The physical models are given and analyzed for the state physical parameters of steady-state gas flow at the leakage orifice
the flame geometry and size of jet fire after the ignition of the leakage gas
and jet flame radiant heat flux
respectively. The high pressure gas leakage models are extensively introduced respectively based on the ideal gas and Abel-Noble state gas equations
then the flame length model
flame width model and lift-off height model are presented to predict the jet flame geometry and size
finally the point source radiation model
multipoint source radiation model
solid flame radiation model and line source radiation model are given and compared. The three kinds of physical models are linked and coupled to analyze the thermal hazard of jet fire at different leakage conditions. Analysis shows the considerable application of the linked physical model.