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Thermodynamic Analysis of Gas Turbine Systems Fueled by a CH 4 /H 2 Mixture

Author

Listed:
  • Laith Mustafa

    (Institute of Thermal Engineering, Poznan University of Technology, 60-965 Poznan, Poland)

  • Rafał Ślefarski

    (Institute of Thermal Engineering, Poznan University of Technology, 60-965 Poznan, Poland)

  • Radosław Jankowski

    (Institute of Thermal Engineering, Poznan University of Technology, 60-965 Poznan, Poland)

Abstract

In the coming years, as a result of changing climate policies and finite fossil fuel resources, energy producers will be compelled to introduce new fuels with lower carbon footprints. One of the solutions is hydrogen, which can be burned or co-fired with methane in energy generation systems. Therefore, this study presents a thermodynamic and emission analysis of a gas turbine fueled by a mixture of CH 4 and H 2 , as well as pure hydrogen. Numerical studies were conducted for the actual operating parameters of the LM6000 gas turbine in both simple and combined cycles. Aspen Hysys and Chemkin-Pro 2023R1 commercial software were used for the calculations. It was demonstrated that with a constant turbine inlet temperature set at 1723 K, the thermal efficiency increased from 39.4% to 40.2% for the gas turbine cycle and from 49% to 49.4% for the combined cycle gas turbine. Nitrogen oxides emissions were calculated using the reactor network, revealing that an increase in H 2 content above 20%vol. in the fuel leads to a significant rise in nitric oxides emissions. In the case of pure H 2 , emissions are more than three times higher than for CH 4 . The main reason for this increase in emissions was identified as the greater presence of H, O, and OH radicals in the reaction zone, causing an acceleration in the formation of nitric oxides.

Suggested Citation

  • Laith Mustafa & Rafał Ślefarski & Radosław Jankowski, 2024. "Thermodynamic Analysis of Gas Turbine Systems Fueled by a CH 4 /H 2 Mixture," Sustainability, MDPI, vol. 16(2), pages 1-15, January.
    • Handle: RePEc:gam:jsusta:v:16:y:2024:i:2:p:531-:d:1314989
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    References listed on IDEAS

    as
    1. Mustafa Alnaeli & Mohammad Alnajideen & Rukshan Navaratne & Hao Shi & Pawel Czyzewski & Ping Wang & Sven Eckart & Ali Alsaegh & Ali Alnasif & Syed Mashruk & Agustin Valera Medina & Philip John Bowen, 2023. "High-Temperature Materials for Complex Components in Ammonia/Hydrogen Gas Turbines: A Critical Review," Energies, MDPI, vol. 16(19), pages 1-46, October.
    2. Fabrizio Reale & Raniero Sannino, 2022. "Numerical Modeling of Energy Systems Based on Micro Gas Turbine: A Review," Energies, MDPI, vol. 15(3), pages 1-24, January.
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