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Thermodynamic modelling and optimization of a dual pressure reheat combined power cycle

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Abstract

Heat recovery steam generator (HRSG) plays a key role on performance of combined cycle (CC). In this work, attention was focused on a dual pressure reheat (DPRH) HRSG to maximize the heat recovery and hence performance of CC. Deaerator, an essential open feed water heater in steam bottoming cycle was located to enhance the efficiency and remove the dissolved gasses in feedwater. Each of the heating section in HRSG is solved from the local flue gas condition with an aim of getting minimum possible temperature difference. For high performance, better conditions for compressor, HRSG sections, steam reheater and deaerator are developed. The CC system is optimized at a gas turbine inlet temperature of 1400°C due to the present available technology of modern gas turbine blade cooling systems. The exergetic losses in CC system are compared with each other. The present DPRH HRSG model has been compared and validated with the plant and published data.

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References

  • Bassily A M 2005 Modelling, numerical optimization, and irreversibility reduction of a dual-pressure reheat combined cycle. Applied Energy 81: 127–151

    Article  Google Scholar 

  • Bassily A M 2007 Modelling, numerical optimization, and irreversibility reduction of a triple-pressure reheat combined cycle. Energy 32(5): 778–794

    Article  Google Scholar 

  • Casarosa F, Donatini, Franco A 2004 Thermoeconomic optimization of heat recovery steam generators operating parameters for combined plants. Energy 29: 389–414

    Article  Google Scholar 

  • De S, Biswal S K 2004 Performance improvement of a coal gasification and combined cogeneration plant by multi-pressure steam generation. Applied Thermal Engineering 24: 449–456

    Article  Google Scholar 

  • Franco A, Russo A 2002 Combined cycle plant efficiency increase based on the optimization of the heat recovery steam generator operating parameters. Inter. J. Thermal Sci. 41(9): 843–859

    Article  Google Scholar 

  • Ganapathy V, Heil B, Rentz J 1988 Heat recovery steam generator for Cheng cycle application, In: B L Williams (ed.) 3rd edition. Industrial Power Conference: 61–65 (No. 100283)

  • Kotas T J 1995 The Exergy method of thermal plant analysis. Malabar, FL Krieger publishing company

    Google Scholar 

  • Nag P K, De S 1997 Design and operation of a heat recovery steam generator with minimum irreversibility. Appl. Thermal Eng. 17(4): 385–391

    Article  Google Scholar 

  • Noelle M, Heyen G 2004 Mathematical modelling and design of an advanced once-through heat recovery steam generator. Computers and Chemical Eng. 28: 651–660

    Article  Google Scholar 

  • Ongiro A, Ugursal V I, Taweel A M, Walker J D 1997 Modelling of heat recovery steam generator performance. Appl. Thermal Eng. 17(5): 427–446

    Article  Google Scholar 

  • Pasha A, Sanjeev J 1995 Combined cycle heat recovery steam generators optimum capabilities and selection criteria. Heat Recovery systems & CHP 15(2): 147–154

    Article  Google Scholar 

  • Pelster S, Favrat D, Spakovsky M R 2001 Thermoeconomic and environomic modelling and optimization of the synthesis, design, and operation of combined cycles with advanced options. ASME Journal for Gas Turbines and Power 123: 717–726

    Article  Google Scholar 

  • Ragland A, Stenzel W 2000 Combined cycle heat recovery optimization. Proceedings of 2000 International Joint Power Generation Conference, Miami Beach, Florida, 1–6, July 23–26

  • Reddy B V, Ramkiran G, Ashok Kumar K, Nag P K 2002 Second law analysis of a waste heat recovery steam generator. Inter. J. Heat and Mass Transfer 45: 1807–1814

    Article  MATH  Google Scholar 

  • Srinivas T 2009 Study of a deaerator location in triple pressure-reheat combined power cycle. Energy 34(9): 1364–1371

    Article  MathSciNet  Google Scholar 

  • Srinivas T, Gupta A V S S K S, Reddy B V 2007 Performance simulation of 210MWnatural gas fired combined cycle power plant. J. Energy, Heat and Mass Transfer 29: 61–82

    Google Scholar 

  • Srinivas T, Gupta A V S S K S, Reddy B V 2007 Parametric simulation of steam injected gas turbine combined cycle. J. Power and Energy, Proceedings of the Institution of Mechanical Engineers Part A 221(7): 873–883

    Article  Google Scholar 

  • Srinivas T, Gupta A V S S K S, Reddy B V 2008 Sensitivity analysis of STIG based combined cycle with dual pressure HRSG. Inter. J. Thermal Sci. 47(9): 1226–1234

    Article  Google Scholar 

  • Subrahmanyam N V R S S, Rajaram S, Kamalanathan N 1995 HRSGs for combined cycle power plants. Heat Recovery Systems & CHP 15(2): 155–161

    Article  Google Scholar 

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Authors and Affiliations

  1. School of Mechanical and Building Sciences, Vellore Institute of Technology University, Vellore, 632 014, India

    T. Srinivas

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  1. T. Srinivas
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Srinivas, T. Thermodynamic modelling and optimization of a dual pressure reheat combined power cycle. Sadhana 35, 597–608 (2010). https://doi.org/10.1007/s12046-010-0037-6

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  • DOI: https://doi.org/10.1007/s12046-010-0037-6

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