IDEAS home Printed from https://ideas.repec.org/a/gam/jeners/v18y2025i11p2762-d1664770.html
   My bibliography  Save this article

Exergy Analysis of 500 MW Power Unit Based on Direct Measurement Data

Author

Listed:
  • Michalina Kurkus-Gruszecka

    (Institute of Heat Engineering, Warsaw University of Technology, Nowowiejska 21/25, 00-665 Warsaw, Poland)

  • Łukasz Szabłowski

    (Institute of Heat Engineering, Warsaw University of Technology, Nowowiejska 21/25, 00-665 Warsaw, Poland)

  • Olaf Dybiński

    (Institute of Heat Engineering, Warsaw University of Technology, Nowowiejska 21/25, 00-665 Warsaw, Poland)

  • Piotr Krawczyk

    (Institute of Heat Engineering, Warsaw University of Technology, Nowowiejska 21/25, 00-665 Warsaw, Poland)

  • Krzysztof Badyda

    (Institute of Heat Engineering, Warsaw University of Technology, Nowowiejska 21/25, 00-665 Warsaw, Poland)

  • Grzegorz Kotte

    (Polenergia S.A., Krucza 24/26, 00-526 Warsaw, Poland)

Abstract

This paper presents an exergy analysis of a 500 MW unit based on actual measurement data. The mathematical model of the system was built in the Aspen HYSYS 2.4 software. The analysis was carried out for two operating states of the unit, at nominal load and at minimum technical load, based on data from two measurement campaigns carried out specifically for this study. The use of measurement data allows an accurate representation of the unit’s current operating conditions, which is crucial for the accuracy of the analysis and the practical implementation of the results obtained. The results show that the dominant sources of exergy losses are the irreversibilities associated with combustion and boiler heat transfer, which account for more than 60% of total exergy losses. The article makes an important contribution to sustainability by identifying opportunities to increase the operating efficiency of the power unit and reduce CO 2 emissions. Proposed technical modifications, such as the modernisation of air heaters, the use of inverters in ventilation systems, or the optimisation of heat exchangers in the turbine system, can significantly improve energy efficiency and reduce the unit’s environmental impact. The analysis provides a valuable resource for the development of energy technologies that promote efficiency and sustainable resource use.

Suggested Citation

  • Michalina Kurkus-Gruszecka & Łukasz Szabłowski & Olaf Dybiński & Piotr Krawczyk & Krzysztof Badyda & Grzegorz Kotte, 2025. "Exergy Analysis of 500 MW Power Unit Based on Direct Measurement Data," Energies, MDPI, vol. 18(11), pages 1-33, May.
    • Handle: RePEc:gam:jeners:v:18:y:2025:i:11:p:2762-:d:1664770
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1996-1073/18/11/2762/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/1996-1073/18/11/2762/
    Download Restriction: no
    ---><---

    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:gam:jeners:v:18:y:2025:i:11:p:2762-:d:1664770. 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: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

    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.