Thermal Radiation Superimposed Hazard Analysis of Elevated Flare under Accident Condition

Abstract In order to ascertain the hazard of thermal radiation during the overhead flare combustion under accident conditions in an enterprise, the CFD simulation is used to obtain the thermal radiation superposition nephogram under the water failure of the whole plant with two flare discharge and combustion at the same time. According to the regulation of maximum operating heat radiation value of flare system in Standard SH3009 -2013, the influence range of different thermal radiation intensities is calculated, which provides a basis for the height design of overhead flare system and the determination of reasonable safety distance between elevated torch system and surrounding facilities and personnel concentration places.