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Enhanced dynamic exergy analysis of a micro-jet (μ-jet) engine at various modes

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  • Balli, Ozgur
  • Aygun, Hakan
  • Turan, Onder

Abstract

In the current study, advanced exergo-dynamic analysis of a micro-turbo jet (μ-jet) along with conventional exergy analysis is presented in various running shaft speed modes. In this context, major advanced exergetic indicators of μ-jet components are evaluated at the various running testing. The operation modes were represented as operation shaft speeds between 48,850 and 77,000 RPM (revolution per minute), while μ-jet produced within the range of 45.01–121.27 N thrust force in these modes. Improvement potentials of turbomachinery components and exergy destruction rates are calculated throughout the real-time testing modes. According to the analysis, the combustor has the lowest exergy efficiency ranging from 41.06% to 50.18%. Also, the study shows that the exergy efficiency values of the experimental μ-jet are found to be as 6.56% at Mode-1, 10.12% at Mode-2, 15.46% at Mode-3 and 17.02% at Mode-4, respectively. Other important findings for μ-jet are that unavoidable exergy destruction rate varies between 94.89% and 95.79%, while endogenous exergy destruction value changes between 89.79% and 91.47% in these modes. Thanks to the present analysis, the methods decreasing avoidable exergy destruction that changes between 4.21% and 5.11% could be focused.

Suggested Citation

  • Balli, Ozgur & Aygun, Hakan & Turan, Onder, 2022. "Enhanced dynamic exergy analysis of a micro-jet (μ-jet) engine at various modes," Energy, Elsevier, vol. 239(PA).
    • Handle: RePEc:eee:energy:v:239:y:2022:i:pa:s0360544221021599
    DOI: 10.1016/j.energy.2021.121911
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    References listed on IDEAS

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    1. Balli, Ozgur, 2022. "Thermodynamic, thermoenvironmental and thermoeconomic analyses of piston-prop engines (PPEs) for landing and take-off (LTO) flight phases," Energy, Elsevier, vol. 250(C).

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