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Thermodynamic optimization of reheat regenerative thermal-power plants

Author

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  • Habib, M. A.
  • Said, S. A. M.
  • Al-Zaharna, I.

Abstract

A first- and second-law procedure for the optimization of the reheat pressure level in reheat regeneration thermal-power plants is presented. The procedure is general in form and is applied for a thermal-power plant having two reheat pressure levels and two open-type feedwater heaters. The second-law efficiency of the steam generator, turbine cycle and plant are evaluated and optimized. The irreversibilities in the different components of the steam generator and turbine cycle sections are evaluated and discussed. Additional constraints such as the steam qualities at the exits of the different turbine stages are considered.

Suggested Citation

  • Habib, M. A. & Said, S. A. M. & Al-Zaharna, I., 1999. "Thermodynamic optimization of reheat regenerative thermal-power plants," Applied Energy, Elsevier, vol. 63(1), pages 17-34, May.
    • Handle: RePEc:eee:appene:v:63:y:1999:i:1:p:17-34
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    References listed on IDEAS

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    1. Dunbar, William R. & Lior, Noam & Gaggioli, Richard A., 1991. "Combining fuel cells with fuel-fired power plants for improved exergy efficiency," Energy, Elsevier, vol. 16(10), pages 1259-1274.
    2. Habib, M.A. & Said, S.A.M. & Al-Zaharna, I., 1995. "Optimization of reheat pressures in thermal power plants," Energy, Elsevier, vol. 20(6), pages 555-565.
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    Cited by:

    1. Vinod Kumar & Liqiang Duan, 2021. "Off-Design Dynamic Performance Analysis of a Solar Aided Coal-Fired Power Plant," Energies, MDPI, vol. 14(10), pages 1-16, May.
    2. Gupta, M.K. & Kaushik, S.C. & Ranjan, K.R. & Panwar, N.L. & Reddy, V. Siva & Tyagi, S.K., 2015. "Thermodynamic performance evaluation of solar and other thermal power generation systems: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 50(C), pages 567-582.
    3. Zhang, Shunqi & Liu, Ming & Ma, Yuegeng & Liu, Jiping & Yan, Junjie, 2021. "Flexibility assessment of a modified double-reheat Rankine cycle integrating a regenerative turbine during recuperative heater shutdown processes," Energy, Elsevier, vol. 233(C).
    4. Bracco, Stefano & Damiani, Lorenzo, 2012. "A non-conventional interpretation of thermal regeneration in steam cycles," Applied Energy, Elsevier, vol. 97(C), pages 548-557.

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