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A novel compression strategy for air hybrid engines

Author

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  • Fazeli, Amir
  • Khajepour, Amir
  • Devaud, Cecile

Abstract

A novel compression strategy for air hybrid engines is proposed utilizing two storage tanks which increases the efficiency of regenerative braking of air hybrid vehicles significantly by increasing the stored air mass and, consequently, the storing pressure in the tank. The second law definition for efficiency is suggested and employed to evaluate the regenerative system capability in storing the kinetic energy of a decelerating vehicle. The maximum energy storing capacity of conventional and proposed compression methods are derived and the advantage of the double-tank system in increasing the energy storing capacity is shown. An experimental setup has also been designed and tested to evaluate the double-tank compression strategy in practice. The experimental results show at least 70% improvement in storing pressure and 125% improvement in energy storing capability in the regenerative braking process using the double-storage system.

Suggested Citation

  • Fazeli, Amir & Khajepour, Amir & Devaud, Cecile, 2011. "A novel compression strategy for air hybrid engines," Applied Energy, Elsevier, vol. 88(9), pages 2955-2966.
    • Handle: RePEc:eee:appene:v:88:y:2011:i:9:p:2955-2966
    DOI: 10.1016/j.apenergy.2011.03.008
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    Citations

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    Cited by:

    1. Liu, Chi-Min & You, Jhih-Jie & Sung, Cheng-Kuo & Huang, Chih-Yung, 2015. "Modified intake and exhaust system for piston-type compressed air engines," Energy, Elsevier, vol. 90(P1), pages 516-524.
    2. Bravo, Rafael Rivelino Silva & De Negri, Victor Juliano & Oliveira, Amir Antonio Martins, 2018. "Design and analysis of a parallel hydraulic – pneumatic regenerative braking system for heavy-duty hybrid vehicles," Applied Energy, Elsevier, vol. 225(C), pages 60-77.
    3. Hung, Yi-Hsuan & Tung, Yu-Ming & Li, Hong-Wei, 2014. "A real-time model of an automotive air propulsion system," Applied Energy, Elsevier, vol. 129(C), pages 287-298.
    4. Dimitrova, Zlatina & Maréchal, François, 2015. "Gasoline hybrid pneumatic engine for efficient vehicle powertrain hybridization," Applied Energy, Elsevier, vol. 151(C), pages 168-177.
    5. Thomas, Dimitrios & Deblecker, Olivier & Ioakimidis, Christos S., 2016. "Optimal design and techno-economic analysis of an autonomous small isolated microgrid aiming at high RES penetration," Energy, Elsevier, vol. 116(P1), pages 364-379.
    6. Huang, Shucheng & Khajepour, Amir, 2022. "A new adiabatic compressed air energy storage system based on a novel compression strategy," Energy, Elsevier, vol. 242(C).

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