Fuel and Combustion

Fuel and Combustion

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

Authors
Hamid Masumi
Hamid Abroshan
Energy Research Institute, Power Generation Research Center, Power Plant Systems Operation Group, Tehran, Iran
Abstract
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 and radiation 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 an appropriate 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.
Keywords
Burners tilt angle
Combustion
Furnace
Numerical simulation
1.     D. B. Spalding, The Art of Partial Modeling, Ninth Symposium (International) on Combustion, Academic Press, New York, 1963, pp. 833-843.
2.     H. F. Nelson, “Combustion Modeling in Large Gas-Fired Furnaces,” Heat & Mass Transfer, 6, No. 1, 1979, pp. 23-33.
3.     A. M. Abdullin and V. Vafin, “Numerical Investigation of the Effect of Tube Waterwall and Combustion Products on Heat Transfer in Furnaces,” J. Eng. Physics and Thermophysics, 65, No. 2, 1994, pp. 752-757.
4.     G. H. Yeoh, R. K. K. Yuen, S. C. P. Chueng and W. K. Kwok, “On Modeling Combustion Radiation and Soot Processes in Compartment Fires,” Building and Environment, 38, 2003, pp. 771-785.
5.     C. R. Choi and C. N. Kim, “Numerical Investigation on the Flow Combustion and NOx Emission Characteristics in a 500 MWe Tangentially Fired Pulverized-Coal Boiler,” Fuel, 88, No. 9, 2009, pp. 1720-1731.
6.     Z. Li, J. Jing, G. Liu, Z. Chen and C. Liu, “Measurement of Gas Species, Temperatures, Char Burnout, and Wall Heat Fluxes In A 200-Mwe Lignite-Fired Boiler at Different Loads,” Applied Energy, 87, No. 4, 2010, pp. 1217-1230.
7.     M. Rahimi, S. M. Shariati and A. Khoshhal, “Investigation of Combustion and Transport Phenomena in Bistoun Power Plant Using CFD,” 10th Congress of Chemical Engineering, Sistan and Baluchestan University, Sistan and Baluchestan, Iran, November 2005, (in Farsi).
8.     S. Falahatkar and H. Ahmadikia, “Developing a New Method for Prevention of Superheater Tubes Destruction in Boiler,” Second Conference of Power Plant Industrial, Sharif University, Tehran, November 2010, (in Farsi).
9.     Bandar Abbas Power Plant Documents.
10.  H. K. Versteeg, W. Malalasekera, An Introduction to Computational Fluid Dynamics, The Finite Volume Method, First Edition, New York, Longman Ltd, 1995.