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The characteristics of ultramodern combined cycle power plants

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  • Kotowicz, Janusz
  • Job, Marcin
  • Brzęczek, Mateusz

Abstract

In the paper are presented methods to improve the efficiency of combined cycle power plants. The efficiency increase is sought by the improvement of the gas turbine characteristics and by proposed effective utilization of heat from the turbine cooling air. The calculation methodology in a wide range of compression ratios and temperatures, far beyond currently applied values, with an assumed constant turbine outlet gas temperature, is presented. It is revealed that the efficiency rise without the use of this heat may be achieved only by improving the gas turbine characteristics. By introducing the additional steam cycle, an efficiency growth of 2–3 percentage points is gained, although this results in a corresponding increase in the compression ratio. An economic analysis is performed, which confirms that the presented development direction of gas turbines may be feasible under the condition of maintaining reasonably low gas turbine investment costs.

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  • Kotowicz, Janusz & Job, Marcin & Brzęczek, Mateusz, 2015. "The characteristics of ultramodern combined cycle power plants," Energy, Elsevier, vol. 92(P2), pages 197-211.
    • Handle: RePEc:eee:energy:v:92:y:2015:i:p2:p:197-211
    DOI: 10.1016/j.energy.2015.04.006
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    References listed on IDEAS

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    1. Ziółkowski, Paweł & Badur, Janusz & Ziółkowski, Piotr Józef, 2019. "An energetic analysis of a gas turbine with regenerative heating using turbine extraction at intermediate pressure - Brayton cycle advanced according to Szewalski's idea," Energy, Elsevier, vol. 185(C), pages 763-786.
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    3. Kruk-Gotzman, Sylwia & Ziółkowski, Paweł & Iliev, Iliya & Negreanu, Gabriel-Paul & Badur, Janusz, 2023. "Techno-economic evaluation of combined cycle gas turbine and a diabatic compressed air energy storage integration concept," Energy, Elsevier, vol. 266(C).
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    5. Kotowicz, Janusz & Job, Marcin & Brzęczek, Mateusz, 2020. "Thermodynamic analysis and optimization of an oxy-combustion combined cycle power plant based on a membrane reactor equipped with a high-temperature ion transport membrane ITM," Energy, Elsevier, vol. 205(C).
    6. Rossi, Iacopo & Sorce, Alessandro & Traverso, Alberto, 2017. "Gas turbine combined cycle start-up and stress evaluation: A simplified dynamic approach," Applied Energy, Elsevier, vol. 190(C), pages 880-890.
    7. Ivan Lorencin & Nikola Anđelić & Vedran Mrzljak & Zlatan Car, 2019. "Genetic Algorithm Approach to Design of Multi-Layer Perceptron for Combined Cycle Power Plant Electrical Power Output Estimation," Energies, MDPI, vol. 12(22), pages 1-26, November.
    8. Kotowicz, Janusz & Brzęczek, Mateusz & Job, Marcin, 2018. "The thermodynamic and economic characteristics of the modern combined cycle power plant with gas turbine steam cooling," Energy, Elsevier, vol. 164(C), pages 359-376.
    9. Badur, Janusz & Lemański, Marcin & Kowalczyk, Tomasz & Ziółkowski, Paweł & Kornet, Sebastian, 2018. "Zero-dimensional robust model of an SOFC with internal reforming for hybrid energy cycles," Energy, Elsevier, vol. 158(C), pages 128-138.
    10. Michalski, Sebastian & Hanak, Dawid P. & Manovic, Vasilije, 2020. "Advanced power cycles for coal-fired power plants based on calcium looping combustion: A techno-economic feasibility assessment," Applied Energy, Elsevier, vol. 269(C).
    11. Kotowicz, Janusz & Brzęczek, Mateusz, 2019. "Comprehensive multivariable analysis of the possibility of an increase in the electrical efficiency of a modern combined cycle power plant with and without a CO2 capture and compression installations ," Energy, Elsevier, vol. 175(C), pages 1100-1120.
    12. Guido Marseglia & Blanca Fernandez Vasquez-Pena & Carlo Maria Medaglia & Ricardo Chacartegui, 2020. "Alternative Fuels for Combined Cycle Power Plants: An Analysis of Options for a Location in India," Sustainability, MDPI, vol. 12(8), pages 1-25, April.
    13. Kwon, Hyun Min & Kim, Tong Seop & Sohn, Jeong Lak & Kang, Do Won, 2018. "Performance improvement of gas turbine combined cycle power plant by dual cooling of the inlet air and turbine coolant using an absorption chiller," Energy, Elsevier, vol. 163(C), pages 1050-1061.
    14. Paweł Ziółkowski & Paweł Madejski & Milad Amiri & Tomasz Kuś & Kamil Stasiak & Navaneethan Subramanian & Halina Pawlak-Kruczek & Janusz Badur & Łukasz Niedźwiecki & Dariusz Mikielewicz, 2021. "Thermodynamic Analysis of Negative CO 2 Emission Power Plant Using Aspen Plus, Aspen Hysys, and Ebsilon Software," Energies, MDPI, vol. 14(19), pages 1-27, October.
    15. Ryszard Bartnik & Waldemar Skomudek & Zbigniew Buryn & Anna Hnydiuk-Stefan & Aleksandra Otawa, 2018. "Methodology and Continuous Time Mathematical Model to Select Optimum Power of Gas Turbine Set for Dual-Fuel Gas-Steam Combined Heat and Power Plant in Parallel System," Energies, MDPI, vol. 11(7), pages 1-22, July.

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