Volume 35 Issue 2
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XING Fei, ZHANG Linqi, CHAN Shining. Effect of fresh air/exhaust gas combination on performance of wave-rotor-topped gas turbines[J]. Journal of Aerospace Power, 2020, 35(2): 225-234. doi: 10.13224/j.cnki.jasp.2020.02.001
Citation: XING Fei, ZHANG Linqi, CHAN Shining. Effect of fresh air/exhaust gas combination on performance of wave-rotor-topped gas turbines[J]. Journal of Aerospace Power, 2020, 35(2): 225-234. doi: 10.13224/j.cnki.jasp.2020.02.001
shu

Effect of fresh air/exhaust gas combination on performance of wave-rotor-topped gas turbines

doi: 10.13224/j.cnki.jasp.2020.02.001
  • 1.

    School of Aerospace Engineering,Xiamen University,Xiamen Fujian 361102,China

  • 2.

    Aircraft and Propulsion Laboratory,Ningbo Institute of Technology,Beijing University of Aeronautics and Astronautics,Ningbo Zhejiang 315800,China

  • 3.

    .School of Aerospace Engineering,Xiamen University,Xiamen Fujian 361102,China

  • Received Date: 2019-08-06
  • Publish Date: 2020-02-28
    Abstract
  • For the wave-rotor-topped gas turbines, the exhaust gas recirculation and the fresh air exhaustion phenomena in wave rotors were considered and the status how the fresh air or exhaust gas splits and merges due to the phenomena was studied. The thermodynamic governing equations were derived, comparison and parametric investigation on the general designs was conducted, and regulations in the parametric investigation results were analyzed based on thermodynamic models. Results showed that: the exhaust gas recirculation and the fresh air exhaustion reduced the work output and the thermal efficiency by different degrees; the effect of the exhaust gas recirculation was smaller than the fresh air exhaustion; an appropriate increase in the wave rotor pressure ratio could keep the general performance of the wave-rotor-topped gas turbine with the effects of the exhaust gas recirculation and the fresh air exhaustion.

     

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