Effect of Swirl Strength to Axial Flow Development Inside the Can Combustor
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The main purpose of this paper is to study the internal flow effect of varying the swirl number inside the combustor. The flow field inside the combustor is controlled by the liner shape and size, wall side holes shape, size and arrangement (primary, secondary and dilution holes), and primary air swirler configuration. Air swirler adds sufficient swirling to the inlet flow to generate central recirculation region (CRZ) which is necessary for flame stability and fuel air mixing enhancement. Therefore designing an appropriate air swirler is a challenge to produce stable, efficient and low emission combustion with low pressure losses. Four radial curve vane swirler with 30o, 40o, 50o and 60o vane angle corresponding to swirl number of 0.366, 0.630, 0.978 and 1.427 respectively were used in this analysis to show vane angle effect on the internal flow field. The flow behavior was investigated numerically using CFD solver Ansys 14.0. This study has provided the characteristic insight into the flow pattern inside the combustion chamber. Results show that the swirling action is augmented with the increase in the swirl number, which leads to increase in the turbulence strength, recirculation zone size, and amount of recirculated mass. The current study report that the 50° swirler (swirl number > 0.7), produced enough swirling flow to generate good CRZ in the combustion chamber
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FLUENT 14.0 User's Guide, Fluent Inc. (2012)
Lefebvre, A.: Gas Turbine Combustion. McGraw-Hill, USA (1983)
Mellor, A.M.: Design of Modern Gas Turbine Combustors. Academic Press. (1990)
Mattingly, J.D.: Elements of Gas Turbine Propulsion. McGraw-Hill International Edition, Singapore (1996)
Ganesan, V.: Gas Turbines. Tata McGraw-Hill, New Delhi (2003)
Beer, J.M.; Chigier, N.A.: Combustion Aerodynamics. Applied Science Publisher, London (1972)
Gupta, A.K.; Lilley, D.G.; Syred, N.: Swirl Flows. Abacus Press, Tunbridge Wells, England (1984)
Ishak, M.S.A.; Mohd Jaafar, M.N.: The Effect of Radial Swirl Generator on Reducing Emissions from Bio-Fuel Burner System, Modern Appl. Sci., Vol. 3, no. 6, pp. 45-61 (2009)
Sloan, D.G.; Smith, P.J.; Smoot, L.D.: Modeling of Swirl in Turbulent Flow System. Prog. Energy Combust. Sci, Vol 12, pp. 163-250 (1986)
Wang, Y.; Yang, V.; Yetter, R.A.: Numerical Study on Swirling Flow in an Cylindrical Chamber, 42nd AIAA Aerospace Sciences Meeting, Reno, Nevada (2004)
Syred, N.; Beer, J.M.: Combustion in Swirling Flows: A Review. Combustion and Flame, Vol. 23, pp. 143-201 (1974)
Kim, Y. M.; Chung, T. J.: Finite- Element Analysis of Turbulent Diffusion Flames. AIAA J., Vol. 27, no. 3, pp. 330-339 (1989)
Menzies, K.R.: An Evolution of Turbulence Models for the Isothermal Flow in a Gas Turbine Combustion System. 6th International Symposium on Engineering Turbulence Modelling and Experiments, Sardinia, Italy (2005)
Da Palma, J.L.: Mixing in Non-Reacting Gas Turbine Combustor Flows. PhD Thesis, University of London, UK (1988)
Durst, F.; Wennerberg, D.: Numerical Aspects of Calculation of Confined Swirling Flows with Internal Recirculation. Int. J. Numerical methods Fluids, Vol. 12, pp. 203-224 (1991)
Versteeg, H.K.; Malalasakera, W.: An Introduction to Computational Fluid Dynamics, the Finite Volume Method. Longman Group Ltd (1995).
Mohd Jaafar M.N., Eldrainy Y.A., Ahmad M.F., Investigation of Radial Swirler Effect on Flow Pattern inside Gas Turbine Combustor. Modern Appl. Sci., 3(5): 21-30, 2009.
Yehia A.E., Hossam S.A., Khalid M.S., Mohd Jaafar M.N., A Multiple. Inlet Swirler for Gas Turbine Combustors, Int. J. Mechanical Syst. Sci. Eng., 2(2): 106-109, 2010.
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