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Improvement of Combustion Process of Spark-Ignited Aviation Wankel Engine

Author

Listed:
  • Lev Finkelberg

    (Central Institute of Aviation Motors n.a. P.I. Baranov, Aviamotornaya St., 2, Moscow 111116, Russia)

  • Alexander Kostuchenkov

    (Central Institute of Aviation Motors n.a. P.I. Baranov, Aviamotornaya St., 2, Moscow 111116, Russia)

  • Andrei Zelentsov

    (Central Institute of Aviation Motors n.a. P.I. Baranov, Aviamotornaya St., 2, Moscow 111116, Russia)

  • Vladimir Minin

    (Central Institute of Aviation Motors n.a. P.I. Baranov, Aviamotornaya St., 2, Moscow 111116, Russia)

Abstract

This paper deals with the creation of modern high-performance aircraft power units based on the Wankel rotary piston engine. One of the main problems of Wankel engines is high specific fuel consumption. This paper solves the problem of improving the efficiency of this type of engine. The mathematical model of non-stationary processes of transfer of momentum, energy, mass, and the concentration of reacting substances in the estimated volume provides for the determination of local gas parameters in the entire computational region, which are presented as a sum of averaged and pulsation components. The k - ζ - f model is used as the turbulence model; the combustion is described by the coherent flame model (CFM) based on the concept of laminar flame propagation. As a result of the calculation, we obtained the values of temperature, pressure, and velocity of the working fluid in the working chamber cross-sections of a rotary–piston engine. Various options of the rotor recess shape are considered. Based on the data obtained, the rotor design was improved. The offered shape of the rotor recess has reduced emissions of both nitrogen oxides and carbon dioxide.

Suggested Citation

  • Lev Finkelberg & Alexander Kostuchenkov & Andrei Zelentsov & Vladimir Minin, 2019. "Improvement of Combustion Process of Spark-Ignited Aviation Wankel Engine," Energies, MDPI, vol. 12(12), pages 1-11, June.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:12:p:2292-:d:240185
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    Citations

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    Cited by:

    1. Jiao, Huichao & Ye, Xianlei & Zou, Run & Wang, Nana & Liu, Jinxiang, 2022. "Comparative study on ignition and combustion between conventional spark-ignition method and near-wall surface ignition method for small-scale Wankel rotary engine," Energy, Elsevier, vol. 255(C).
    2. Run Zou & Yi Zhang & Jinxiang Liu & Wei Yang & Yangang Zhang & Feng Li & Cheng Shi, 2022. "Effect of a Taper Intake Port on the Combustion Characteristics of a Small-Scale Rotary Engine," Sustainability, MDPI, vol. 14(23), pages 1-14, November.
    3. Merve Kucuk & Ali Surmen & Ramazan Sener, 2022. "Influence of Hydrogen Enrichment Strategy on Performance Characteristics, Combustion and Emissions of a Rotary Engine for Unmanned Aerial Vehicles (UAVs)," Energies, MDPI, vol. 15(24), pages 1-22, December.
    4. Zhenghao Yang & Yang Du & Qi Geng & Xu Gao & Haonan Er & Yuanfei Liu & Guangyu He, 2022. "Performance Analysis of a Hydrogen-Doped High-Efficiency Hybrid Cycle Rotary Engine in High-Altitude Environments Based on a Single-Zone Model," Energies, MDPI, vol. 15(21), pages 1-20, October.
    5. Osman Akin Kutlar & Fatih Malkaz, 2019. "Two-Stroke Wankel Type Rotary Engine: A New Approach for Higher Power Density," Energies, MDPI, vol. 12(21), pages 1-22, October.

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