IDEAS home Printed from https://ideas.repec.org/a/eee/appene/v78y2004i2p179-197.html
   My bibliography  Save this article

Second-law based thermodynamic analysis of Brayton/Rankine combined power cycle with reheat

Author

Listed:
  • Khaliq, A.
  • Kaushik, S. C.

Abstract

The aim of the present paper is to use the second-law approach for the thermodynamic analysis of the reheat combined Brayton/Rankine power cycle. Expressions involving the variables for specific power-output, thermal efficiency, exergy destruction in components of the combined cycle, second-law efficiency of each process of the gas-turbine cycle, and second-law efficiency of the steam power cycle have been derived. The standard approximation for air with constant properties is used for simplicity. The effects of pressure ratio, cycle temperature- ratio, number of reheats and cycle pressure-drop on the combined cycle performance parameters have been investigated. It is found that the exergy destruction in the combustion chamber represents over 50% of the total exergy destruction in the overall cycle. The combined cycle efficiency and its power output were maximized at an intermediate pressure-ratio, and increased sharply up to two reheat-stages and more slowly thereafter.

Suggested Citation

  • Khaliq, A. & Kaushik, S. C., 2004. "Second-law based thermodynamic analysis of Brayton/Rankine combined power cycle with reheat," Applied Energy, Elsevier, vol. 78(2), pages 179-197, June.
    • Handle: RePEc:eee:appene:v:78:y:2004:i:2:p:179-197
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0306-2619(03)00168-5
    Download Restriction: Full text for ScienceDirect subscribers only
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. 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.
    2. Chandramouli, R. & Srinivasa Rao, M.S.S. & Ramji, K., 2015. "Energy and exergy based thermodynamic analysis of reheat and regenerative Braysson cycle," Energy, Elsevier, vol. 90(P2), pages 1848-1858.
    3. Dong, Guangyu & Morgan, Robert & Heikal, Morgan, 2015. "A novel split cycle internal combustion engine with integral waste heat recovery," Applied Energy, Elsevier, vol. 157(C), pages 744-753.
    4. Mehrpanahi, A. & Nikbakht Naserabad, S. & Ahmadi, G., 2019. "Multi-objective linear regression based optimization of full repowering a single pressure steam power plant," Energy, Elsevier, vol. 179(C), pages 1017-1035.
    5. Yin, Juan & Su, Shi & Yu, Xin Xiang & Weng, Yiwu, 2010. "Thermodynamic characteristics of a low concentration methane catalytic combustion gas turbine," Applied Energy, Elsevier, vol. 87(6), pages 2102-2108, June.
    6. Singh, Omendra Kumar & Kaushik, Subhash C., 2013. "Reducing CO2 emission and improving exergy based performance of natural gas fired combined cycle power plants by coupling Kalina cycle," Energy, Elsevier, vol. 55(C), pages 1002-1013.
    7. Kaushik, S.C. & Reddy, V. Siva & Tyagi, S.K., 2011. "Energy and exergy analyses of thermal power plants: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 15(4), pages 1857-1872, May.
    8. Siva Reddy, V. & Kaushik, S.C. & Tyagi, S.K., 2012. "Exergetic analysis of solar concentrator aided natural gas fired combined cycle power plant," Renewable Energy, Elsevier, vol. 39(1), pages 114-125.
    9. Nadir, Mahmoud & Ghenaiet, Adel, 2015. "Thermodynamic optimization of several (heat recovery steam generator) HRSG configurations for a range of exhaust gas temperatures," Energy, Elsevier, vol. 86(C), pages 685-695.
    10. Padilla, Ricardo Vasquez & Soo Too, Yen Chean & Benito, Regano & Stein, Wes, 2015. "Exergetic analysis of supercritical CO2 Brayton cycles integrated with solar central receivers," Applied Energy, Elsevier, vol. 148(C), pages 348-365.

    More about this item

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:eee:appene:v:78:y:2004:i:2:p:179-197. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Catherine Liu (email available below). General contact details of provider: http://www.elsevier.com/wps/find/journaldescription.cws_home/405891/description#description .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.