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Investigation of two hybrid aircraft propulsion and powering systems using alternative fuels

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  • Seyam, Shaimaa
  • Dincer, Ibrahim
  • Agelin-Chaab, Martin

Abstract

Sustainable aviation attracts the attention of academic and industrial research with the aim of lowering the environmental impact and reducing greenhouse gas emissions. This paper presents two proposed high bypass three-shaft turbofan engines combined a molten carbonate fuel cell (MCFC-turbofan) and a solid oxide fuel cell (SOFC-Turbofan). Energy and exergy analyses are conducted to investigate the performance of the aircraft at the cruising operation mode. The used fuels are kerosene and an alternative fuel blend of 75% methane and 25% hydrogen. The results show that the base turbofan has a maximum thrust force of 153 kN, while the SOFC- and MCFC-turbofans have 116 kN and 107 kN, respectively. The thermal and exergy efficiencies are 43.4% and 52% for the base-turbofan, 52.8% and 66.2% for the SOFC-turbofan, and 71% and 87.6% for the MCFC-turbofan. The carbon emissions are reduced from 18 kg/s to about 3.7 kg/s using the alternative fuel blends. The turbofan engine weight increases by 18% using the SOFC and 40% using the MCFC, while the thrust-to-weight-ratio is reduced from 2.7 for the base-turbofan, to 1.5 for the SOFC-turbofan, and 1.06 for the MCFC-turbofan. Adding a fuel cell increases the engine weight but also improves the system performance and reduces the emissions.

Suggested Citation

  • Seyam, Shaimaa & Dincer, Ibrahim & Agelin-Chaab, Martin, 2021. "Investigation of two hybrid aircraft propulsion and powering systems using alternative fuels," Energy, Elsevier, vol. 232(C).
    • Handle: RePEc:eee:energy:v:232:y:2021:i:c:s0360544221012858
    DOI: 10.1016/j.energy.2021.121037
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    References listed on IDEAS

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    1. Ji, Zhixing & Qin, Jiang & Cheng, Kunlin & Liu, He & Zhang, Silong & Dong, Peng, 2019. "Performance evaluation of a turbojet engine integrated with interstage turbine burner and solid oxide fuel cell," Energy, Elsevier, vol. 168(C), pages 702-711.
    2. Ji, Zhixing & Qin, Jiang & Cheng, Kunlin & Guo, Fafu & Zhang, Silong & Dong, Peng, 2019. "Thermodynamics analysis of a turbojet engine integrated with a fuel cell and steam injection for high-speed flight," Energy, Elsevier, vol. 185(C), pages 190-201.
    3. Bakalis, Diamantis P. & Stamatis, Anastassios G., 2014. "Optimization methodology of turbomachines for hybrid SOFC–GT applications," Energy, Elsevier, vol. 70(C), pages 86-94.
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    2. Martsinchyk, Aliaksandr & Milewski, Jaroslaw & Dybiński, Olaf & Szczęśniak, Arkadiusz & Siekierski, Maciej & Świrski, Konrad, 2023. "Experimental investigation of novel molten borate fuel cell supported by an artificial neural network for electrolyte composition selection," Energy, Elsevier, vol. 279(C).
    3. Ji, Zhixing & Qin, Jiang & Cheng, Kunlin & Zhang, Silong & Wang, Zhanxue, 2023. "A comprehensive evaluation of ducted fan hybrid engines integrated with fuel cells for sustainable aviation," Renewable and Sustainable Energy Reviews, Elsevier, vol. 185(C).
    4. Chen, Yu-Zhi & Tsoutsanis, Elias & Wang, Chen & Gou, Lin-Feng, 2023. "A time-series turbofan engine successive fault diagnosis under both steady-state and dynamic conditions," Energy, Elsevier, vol. 263(PD).
    5. Kroyan, Yuri & Wojcieszyk, Michał & Kaario, Ossi & Larmi, Martti, 2022. "Modeling the impact of sustainable aviation fuel properties on end-use performance and emissions in aircraft jet engines," Energy, Elsevier, vol. 255(C).
    6. Huang, Yu & Turan, Ali, 2022. "Flexible power generation based on solid oxide fuel cell and twin-shaft free turbine engine: Mechanical equilibrium running and design analysis," Applied Energy, Elsevier, vol. 315(C).
    7. Seyam, Shaimaa & Dincer, Ibrahim & Agelin-Chaab, Martin, 2022. "Exergetic assessment of a newly designed solid oxide fuel cell-based system combined with a propulsion engine," Energy, Elsevier, vol. 239(PD).

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