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article is a report of the attempts which were made to model an industrial premix gas burner which was operating in one of the furnaces of the Catalytic Reforming Unit (CRU) of Abadan refinery. The main objective of the modeling was to investigate on the effect of the structural geometry of the burner on its mode of operation, i.e. complete combustion of the gas, maximum generation of heat and production of a proper flame configuration. For this goal, fundamental equations of the conservation of mass, momentum and energy for fuel-air mixture flowing in the burner were written and solved by using the Computational Fluid Dynamic (CFD) techniques and the results were analyzed. The main conclusion of the research was that various effects of the changes in the burner come to appear and an appropriate correction on the burner was recommended to the industry.

Application of CFD in Studying and Modification of Gas Burners of Catalytic Reforming Unit of Abadan Refinery in Iran