Investigating the Medium Pressure Flare Performance of South Pars Gas Refinery in Design and Operational Conditions Using CFD Simulation

In this article, the CFD simulation of the medium pressure flare of South Pars 5th Refinery has been carried out in industrial dimensions in order to investigate the effect of the flare tip geometry on the flare combustion characteristics. CFD model was developed. In order to avoid numerical errors proper meshing was done. The results of CFD simulation show that in the operational conditions, the increase in the temperature of the Flare type body due to the impact of the flame is negligible, so its performance is suitable with the current amount of sweeping gas. Therefore, it is not possible to further reduce the gas sent to the MP flare because the flame may be drawn into the flare network, the temperature of the flare tip surface and the wind shield may increase, which in the long run will cause the flare tip surface to be destroyed.