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Experimental Energy and Exergy Analysis of an Automotive Turbocharger Using a Novel Power-Based Approach

Author

Listed:
  • Sina Kazemi Bakhshmand

    (Integrated Modeling of Energy-Efficient Vehicle Powertrains, Technical University Berlin, Secretary CAR-B1, Carnotstrasse 1a, 10587 Berlin, Germany)

  • Ly Tai Luu

    (Integrated Modeling of Energy-Efficient Vehicle Powertrains, Technical University Berlin, Secretary CAR-B1, Carnotstrasse 1a, 10587 Berlin, Germany)

  • Clemens Biet

    (Integrated Modeling of Energy-Efficient Vehicle Powertrains, Technical University Berlin, Secretary CAR-B1, Carnotstrasse 1a, 10587 Berlin, Germany)

Abstract

The performance of turbochargers is heavily influenced by heat transfer. Conventional investigations are commonly performed under adiabatic assumptions and are based on the first law of thermodynamics, which is insufficient for perceiving the aerothermodynamic performance of turbochargers. This study aims to experimentally investigate the non-adiabatic performance of an automotive turbocharger turbine through energy and exergy analysis, considering heat transfer impacts. It is achieved based on experimental measurements and by implementing a novel innovative power-based approach to extract the amount of heat transfer. The turbocharger is measured on a hot gas test bench in both diabatic and adiabatic conditions. Consequently, by carrying out energy and exergy balances, the amount of lost available work due to heat transfer and internal irreversibilities within the turbine is quantified. The study allows researchers to achieve a deep understanding of the impacts of heat transfer on the aerothermodynamic performance of turbochargers, considering both the first and second laws of thermodynamics.

Suggested Citation

  • Sina Kazemi Bakhshmand & Ly Tai Luu & Clemens Biet, 2021. "Experimental Energy and Exergy Analysis of an Automotive Turbocharger Using a Novel Power-Based Approach," Energies, MDPI, vol. 14(20), pages 1-15, October.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:20:p:6572-:d:654699
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    References listed on IDEAS

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    1. Payri, Francisco & Olmeda, Pablo & Arnau, Francisco J. & Dombrovsky, Artem & Smith, Les, 2014. "External heat losses in small turbochargers: Model and experiments," Energy, Elsevier, vol. 71(C), pages 534-546.
    2. Diango, A. & Perilhon, C. & Descombes, G. & Danho, E., 2011. "Application of exergy balances for the optimization of non-adiabatic small turbomachines operation," Energy, Elsevier, vol. 36(5), pages 2924-2936.
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