Study on thermal radiation of horizontally oriented rectangular source fuel jet fire

doi:10.16265/j.cnki.issn1003-3033.2017.06.013

Abstract

Abstract: In order to study the thermal radiation and hazard radius of horizontally oriented rectangular source fuel jet fires, Thornton model combined with FDS simulation tool was used to simulate square and rectangular fuel source (with same area) jet fires. Simulation involving 13 fuel exit velocities were carried out. The Thornton model was modified to take aspect ratio of rectangular orifice into account based on simulated data. The results show that the thermal radiation results obtained by Thornton model are greater than those of FDS, but their variation tendencies with exit velocity are the same. The modified Thornton model can be used to predict thermal radiation near the exit port of rectangular jet fire,that there is an exponential relationship between hazard radius and the exit velocity,and the Thornton model prediction of the hazard radius matches the simulation results.

Key words: jet fire, rectangular jet exit port, thermal radiation, hazard radius, Thornton model

CLC Number:

X932
X937

ZHANG Yuanyuan, HUANG Youbo , LYU Shuran. Study on thermal radiation of horizontally oriented rectangular source fuel jet fire[J]. China Safety Science Journal, 2017, 27(6): 73-78.

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