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Numerical Analysis of Two-Stage Turbine System for Multicylinder Engine under Pulse Flow Conditions with High Pressure-Ratio Turbine Rotor

Author

Listed:
  • Dariusz Kozak

    (Department of Aircraft Engines, Faculty of Power and Aeronautical Engineering, Institute of Heat Engineering, Warsaw University of Technology, 00-665 Warsaw, Poland)

  • Paweł Mazuro

    (Department of Aircraft Engines, Faculty of Power and Aeronautical Engineering, Institute of Heat Engineering, Warsaw University of Technology, 00-665 Warsaw, Poland)

Abstract

Internal combustion engine (ICE) exhaust gases provide a high amount of energy which is partially lost to the environment. Such energy can be recovered with a turbocharger turbine or other after-treatment device. As the engine exhaust flow varies not only with the engine load but also with the opening and closing of the exhaust valves, a proper matching between the engine and the turbine should be established to maximize the recovery of waste energy. That is why a twin-scroll or dual turbocharging system is implemented, especially in multi-cylinder engines. Such systems require a very complex pipeline to eliminate the interference of the exhaust pulses between the adjacent cylinder ignitions. In this study, the two-stage, multi-channel turbine system was investigated for two different rotor geometries: the old, high-performance rotor A and the smaller but more modern rotor B, which was scaled to match rotor A. Both geometries were compared at three different turbine speeds and variable turbine geometry (VTG) vane positions. It was found that the two-stage turbine system with rotor B geometry provided an 8% higher total efficiency than rotor A due to the lower flow losses within the rotor passage.

Suggested Citation

  • Dariusz Kozak & Paweł Mazuro, 2023. "Numerical Analysis of Two-Stage Turbine System for Multicylinder Engine under Pulse Flow Conditions with High Pressure-Ratio Turbine Rotor," Energies, MDPI, vol. 16(2), pages 1-46, January.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:2:p:751-:d:1029619
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    References listed on IDEAS

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    1. Hanwei Wang & Yue Chao & Tian Tang & Kai Luo & Kan Qin, 2021. "A Comparison of Partial Admission Axial and Radial Inflow Turbines for Underwater Vehicles," Energies, MDPI, vol. 14(5), pages 1-20, March.
    2. Vittorio Usai & Silvia Marelli, 2021. "Steady State Experimental Characterization of a Twin Entry Turbine under Different Admission Conditions," Energies, MDPI, vol. 14(8), pages 1-17, April.
    3. Chiong, M.S. & Rajoo, S. & Romagnoli, A. & Costall, A.W. & Martinez-Botas, R.F., 2016. "One-dimensional pulse-flow modeling of a twin-scroll turbine," Energy, Elsevier, vol. 115(P1), pages 1291-1304.
    4. Dariusz Kozak & Paweł Mazuro & Andrzej Teodorczyk, 2021. "Numerical Simulation of Two-Stage Variable Geometry Turbine," Energies, MDPI, vol. 14(17), pages 1-34, August.
    5. Marelli, Silvia & Capobianco, Massimo, 2011. "Steady and pulsating flow efficiency of a waste-gated turbocharger radial flow turbine for automotive application," Energy, Elsevier, vol. 36(1), pages 459-465.
    6. Galindo, J. & Fajardo, P. & Navarro, R. & García-Cuevas, L.M., 2013. "Characterization of a radial turbocharger turbine in pulsating flow by means of CFD and its application to engine modeling," Applied Energy, Elsevier, vol. 103(C), pages 116-127.
    7. Beichuan Hong & Varun Venkataraman & Andreas Cronhjort, 2021. "Numerical Analysis of Engine Exhaust Flow Parameters for Resolving Pre-Turbine Pulsating Flow Enthalpy and Exergy," Energies, MDPI, vol. 14(19), pages 1-24, September.
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