Numerical Investigation of Burner Angles Effect on the Combustion Phenomenon in a Selected Power Plant Boiler

In this paper the effect of burners tilt angle on gaseous flows and combustion process is numerically investigated. The furnace of the Bandar Abbas power plant boiler was comprehensively simulated using FLUENT software on the actual scale. The three dimensional Navier-Stokes، the energy and the chemical species transport equations were solved in the computational domain. The standard k-ε turbulence model for fluid flow and the eddy dissipation model for turbulent combustion were utilized andradiation heat transfer was considered using the P1 model. The effects of tilt angle on the fluid flow and combustion parameters were analyzed at a constant air and fuel flow rate. Results show that changing the burners tilt angle is anappropriate way to control the flames and the temperature of different boiler parts. The obtained results were compared with the corresponding results in the literature which showed good agreement.