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Thermal efficiency of direct, inverse and sCO2 gas turbine cycles intended for small power plants

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  • Valdés, Manuel
  • Abbas, Rubén
  • Rovira, Antonio
  • Martín-Aragón, Javier

Abstract

The aim of this paper is to study whether the efficiency loss that takes place at low Reynolds numbers (Re) can be a problem for small power gas turbines and, if this is the case, to assess whether the use of alternative power cycles such as supercritical sCO2 or inverse Joule–Brayton cycles might solve this problem.

Suggested Citation

  • Valdés, Manuel & Abbas, Rubén & Rovira, Antonio & Martín-Aragón, Javier, 2016. "Thermal efficiency of direct, inverse and sCO2 gas turbine cycles intended for small power plants," Energy, Elsevier, vol. 100(C), pages 66-72.
    • Handle: RePEc:eee:energy:v:100:y:2016:i:c:p:66-72
    DOI: 10.1016/j.energy.2016.01.072
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    References listed on IDEAS

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    1. Rovira, Antonio & Rubbia, Carlo & Valdés, Manuel & Martínez-Val, José M., 2014. "Thermodynamic cycles optimised for medium enthalpy units of concentrating solar power," Energy, Elsevier, vol. 67(C), pages 176-185.
    2. Le Roux, W.G. & Bello-Ochende, T. & Meyer, J.P., 2012. "Optimum performance of the small-scale open and direct solar thermal Brayton cycle at various environmental conditions and constraints," Energy, Elsevier, vol. 46(1), pages 42-50.
    3. Basrawi, Mohamad Firdaus Bin & Yamada, Takanobu & Nakanishi, Kimio & Katsumata, Hideaki, 2012. "Analysis of the performances of biogas-fuelled micro gas turbine cogeneration systems (MGT-CGSs) in middle- and small-scale sewage treatment plants: Comparison of performances and optimization of MGTs," Energy, Elsevier, vol. 38(1), pages 291-304.
    4. Ferraro, Vittorio & Marinelli, Valerio, 2012. "An evaluation of thermodynamic solar plants with cylindrical parabolic collectors and air turbine engines with open Joule–Brayton cycle," Energy, Elsevier, vol. 44(1), pages 862-869.
    5. Rovira, Antonio & Muñoz-Antón, Javier & Montes, María José & Martínez-Val, José María, 2013. "Optimization of Brayton cycles for low-to-moderate grade thermal energy sources," Energy, Elsevier, vol. 55(C), pages 403-416.
    6. Le Roux, W.G. & Bello-Ochende, T. & Meyer, J.P., 2011. "Operating conditions of an open and direct solar thermal Brayton cycle with optimised cavity receiver and recuperator," Energy, Elsevier, vol. 36(10), pages 6027-6036.
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    Cited by:

    1. Sebastián, Andrés & Abbas, Rubén & Valdés, Manuel, 2021. "Analytical prediction of Reynolds-number effects on miniaturized centrifugal compressors under off-design conditions," Energy, Elsevier, vol. 227(C).
    2. Di Zhang & Yuqi Wang & Yonghui Xie, 2018. "Investigation into Off-Design Performance of a S-CO 2 Turbine Based on Concentrated Solar Power," Energies, MDPI, vol. 11(11), pages 1-13, November.

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