Design of Muffler for A Low Powered Gas Turbine Exhaust System

Design of Muffler for A Low Powered Gas Turbine Exhaust System

P.K.SarmaRajesh Ghosh Y.V.S.N.Murty V.DharmaRao 

GITAM University, Visakhapatnam, INDIA

GVP College of Engineering, Visakhapatnam-530048, INDIA

30 June 2012
| Citation



The report contains the design of the muffler to be installed in the stack of chimney for low powered 10 megawatt gas turbine. The parameters pressure and temperature of the exhaust gas are to be gradually reduced in three successive modules with the energy considerations. The design is accomplished for a range of possible magnitudes of friction coefficients for the gas expanding through perforations. Besides, based on the results of computations drawings are provided with the aid of auto cad for manufacturing and fabrication purposes.

1. Introduction
2. Review of literature
3. Formulation of The Model
4. Numerical Method
5. Acoustic Control
6. Results of Computation
7. Conclusions
8. Acknowledgement

The authors of the report greatly appreciate the support to Consultancy Projects and Collaborations (C P C) of GITAM UNIVERSITY Visakhapatnam by the President and Chancellor Dr. M.V.V.S.Murthy. Besides, the team expresses their appreciation to the Vice Chancellor, GITAM University in providing facilities to carryout the work.The authors thank ULTRA DESIGNS Ltd.,Visakhaptnam for permitting to publish the article.


[1] D. J. Parzych and G. A. Schott, Understanding the Noise Generation Mechanisms of Industrial Combustion Turbines and Designing Effective Noise Control Treatments, Inter-Noise 95 Proceedings,pp. 159, 1995.

[2] J. D. Keller, The Manifold Problem, J. Appl. Mechanics, vol. 71, pp. 77-85, 1949.

[3] W. M. Dow, The uniform distribution of a fluid flowing through a perforated pipe, J. Appl. Mechanics, vol. 17, pp. 431-438, 1950.

[4] B. J. Bailey, Fluid Flow in Perforated Pipes, J. Mech. Engg. Sc., vol. 17, pp. 338-347, 1975.

[5] G. Rudinger, Wave Diagrams for Nonsteady Flow in Ducts, D. Van Nostrund Company, Inc., New York, NY, pp. 59 and 147, 1955.

[6] G. H. Trengrouse, Steady Compressible Flow through a Single Row of Radial Holes in the Wall of a Pipeline, J. Mech. Engg. Sc., vol. 12, pp. 248-258, 1970.

[7] J. Wang and G. H. Priestman, A Theoretical Model of Uniform Flow Distribution for the Admission of High- Energy Fluids to a Surface Steam Condenser, J. Eng. Gas Turbines Power, vol. 123, issue. 2, pp. 472-475, 2001.