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Performance evaluation of chemically recuperated gas turbine (CRGT) power plants fuelled by di-methyl-ether (DME)

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  • Cocco, Daniele
  • Tola, Vittorio
  • Cau, Giorgio

Abstract

This paper reports a performance analysis on CRGT power plants fuelled by DME, which is a potentially attractive fuel for gas turbines. The study also includes a performance comparison of simple cycle gas turbines fuelled by natural gas, DME and methanol. The study shows that, owing to the exhaust heat recovery carried out through DME pre-heating and vaporization before combustion, the efficiency of the DME fuelled turbine improves by about 1 point, without any significant change in power output. Thermochemical recuperation in DME fuelled turbines allows to achieve a significant performance improvement. For the highest water/DME molar ratio allowed by the minimum temperature difference here assumed, the power output of the CRGT plant is 44% higher than that of the reference plant, with a corresponding 54% efficiency (versus 41% of the reference unit) and a 8% decrease of the specific CO2 emissions.

Suggested Citation

  • Cocco, Daniele & Tola, Vittorio & Cau, Giorgio, 2006. "Performance evaluation of chemically recuperated gas turbine (CRGT) power plants fuelled by di-methyl-ether (DME)," Energy, Elsevier, vol. 31(10), pages 1446-1458.
    • Handle: RePEc:eee:energy:v:31:y:2006:i:10:p:1446-1458
    DOI: 10.1016/j.energy.2005.05.015
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    Cited by:

    1. Tola, Vittorio & Lonis, Francesco, 2021. "Low CO2 emissions chemically recuperated gas turbines fed by renewable methanol," Applied Energy, Elsevier, vol. 298(C).
    2. Pashchenko, Dmitry, 2019. "Combined methane reforming with a mixture of methane combustion products and steam over a Ni-based catalyst: An experimental and thermodynamic study," Energy, Elsevier, vol. 185(C), pages 573-584.
    3. Eyal, Amnon & Tartakovsky, Leonid, 2020. "Second-law analysis of the reforming-controlled compression ignition," Applied Energy, Elsevier, vol. 263(C).
    4. Pashchenko, Dmitry, 2018. "First law energy analysis of thermochemical waste-heat recuperation by steam methane reforming," Energy, Elsevier, vol. 143(C), pages 478-487.
    5. Cai, Peng & Liu, Zhenyi & Li, Mingzhi & Zhao, Yao & Li, Pengliang & Li, Shuhong & Li, Yingke, 2022. "Experimental study of effect of equivalence ratio and initial turbulence on the explosion characteristics of LPG/DME clean blended fuel," Energy, Elsevier, vol. 250(C).
    6. Yang, Zhao & Wu, Xi, 2013. "Retrofits and options for the alternatives to HCFC-22," Energy, Elsevier, vol. 59(C), pages 1-21.
    7. Luo, Chending & Zhang, Na & Lior, Noam & Lin, Hu, 2011. "Proposal and analysis of a dual-purpose system integrating a chemically recuperated gas turbine cycle with thermal seawater desalination," Energy, Elsevier, vol. 36(6), pages 3791-3803.
    8. Pashchenko, Dmitry, 2019. "Pressure drop in the thermochemical recuperators filled with the catalysts of various shapes: A combined experimental and numerical investigation," Energy, Elsevier, vol. 166(C), pages 462-470.
    9. Oleksandr Cherednichenko & Valerii Havrysh & Vyacheslav Shebanin & Antonina Kalinichenko & Grzegorz Mentel & Joanna Nakonieczny, 2020. "Local Green Power Supply Plants Based on Alcohol Regenerative Gas Turbines: Economic and Environmental Aspects," Energies, MDPI, vol. 13(9), pages 1-20, May.

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