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Optimization of Triple Pressure Heat Recovery Steam Generator in Combined Cycle Power Plant

N.Ravi Kumar*, SK. Jaheeruddin**, A.V. Sita Rama Raju***

*Assistant professors,Gudlavalleru Engineering College, Gudlavalleru, Krishna(dt)-521356

**Professor,Dept of Mechanical Engg.JNTU College ofEngineering,Kakinada

Periodicity:February - April'2006
DOI : https://doi.org/10.26634/jfet.1.3.978

Abstract

Nowadays combined cycle (CC) power plants become a good choice to produce energy, because of their high efficiency and the use of low carbon content fuels (e.g. natural gas) that reduces the greenhouse gases production. Combined Cycle plants couple a Brayton cycle with a Rankine cycle. The equipment where the steam production takes place is named the heat recovery steam generator (HRSG). For the combined power plants, the optimization of the heat recovery steam generator (HRSG) is of particular interest in order to improve the efficiency of the heat recovery from turbine exhaust gas to maximize the power production in the steam cycle. The aim of the present paper is to out line the HRSG design and optimize the heat recovery steam generator in combined cycle power plant. In heat recovery steam generator the optimization is done on steam side i.e. optimum pressure of steam. The optimum intermediate pressure increases with maximum steam pressure. The effect of pinch point on the mass flow rate of steam is also calculated. It is found that as the low pressure pinch point increases the stack temperature also increases.

Keywords

Heat Recovery Steam Generator, Combined Cycle, Optimization

How to Cite this Article?

N. Ravi Kumar, SK. Jaheeruddin and A.V. Sita Rama Raju (2006). Optimization of Triple Pressure Heat Recovery Steam Generator in Combined Cycle Power Plant. i-manager’s Journal on Future Engineering and Technology, 1(3), 53-62. https://doi.org/10.26634/jfet.1.3.978

References

[1 ].Linhoff B„ Hindmarsh E„ 1983, "The Pinch Design Method for Heat Exchanger Networks", Chemical Engineering Science, 38: 745-763..

[2].Subrahmanyam.N.V.R.SS,Rajaram.S,Kamalnathan.N, HRSGs for combined cycle power plants. Heat Recovery Systems & CHP, 1995, Vol. 15, No. 2, pp. 155-161.

[3].RK.Nag and D.Raha, Thermodynamic analysis of a coal- based Combined cycle power plant. Heat Recovery Systems&CHP, 1995, Vol. 15, No. 2, pp. 115-129.

[4].Horlock, J.H., "CombinedPower Plants", Pergamon Press, Oxford, 1992.

[5].A. Ong'iro, V. I. Ugursal, A. M. A1 Taweel, and J. D. Walker, Modeling of heat recovery steam generator performance. Applied Thermal Engineering, 1997, Vol. 17, No. 5, pp. 427¬446.Modeling of heat recovery steam generator performance. Applied Thermal Engineering, 1997, Vol. 17, No. 5, pp. 427¬446.

[6].RK.Nag, S. Mazumder, Thermodynamic optimization of a waste heat boiler, in: Proceedings of the 11th National Heat and Mass Transfer Conference, Madras, India, 1991.

[7].R K. Nag and S. De, Design and operation of a heat recovery steam generator with minimum Irreversibility, Applied Thermal Engineering, 1997, Vol. 17, No. 4, pp. 385-391.

[8].M.Valdes, J.Rapun, Optimization of heat recovery steam generators for combined cycle gas turbine power plants. Applied Thermal Engineering, 2001, Vol 21, pp 1149-1159.

[9].C. Casarosa, F. Donatini, A. Franco, Thermoeconomic optimization of heat recovery steam generators operating parameters for combined plants. Energy 29 ,2004 P389414

[10].Victor-Eduard Cenu§a, Adrian Badea , Michel Feidt, Riad Benelmir, Exergetic optimization of the heat recovery steam generators by imposing the total heat transfer area. International.Journal of Thermodynamics,2004,Vol.7,(No.3), p.149¬156.

[11].Jacek Topolski and Janusz Badur, "Comparison of combined cycle efficiencies with different heat recovery steam generators" ransactions of the fluid flow machinery. No 111,2002, pp 5-16

[12].A. Ong'iro, V. I. UgursaLt A. M. A1 Taweel, and J. D. Walker, Modeling of heat recovery steam generator performance. Applied Thermal Engineering, 1997,Vol. 17, No. 5, pp. 427-446.

[13].Deschamps PJ. Advanced combined cycle alternatives with the latest gas turbines ASME Journal of Engineering for Gas Turbines and Power 1998, 120, P350357.

[14].Korobitsyn MA. New and advanced energy conversion technologies. Analysis of cogeneration combined and integrated cycles. PhD. Thesis, University of Twente, Enschede, The Netherlands, 1998.

[15].Bejan.A Tastsaronis.G, Moram.M, "Thermal Design and Optimization" John Wiley & Sons, New York, 1996.

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