IDEAS home Printed from https://ideas.repec.org/a/gam/jeners/v13y2020i6p1500-d335570.html
   My bibliography  Save this article

Study of the Miller Cycle on a Turbocharged DI Gasoline Engine Regarding Fuel Economy Improvement at Part Load

Author

Listed:
  • Xuewei Pan

    (College of Automotive Studies, Tongji University, Shanghai 200092, China
    SAIC Maxus Automotive Co., Ltd., Shanghai 200438, China)

  • Yinghua Zhao

    (College of Automotive Studies, Tongji University, Shanghai 200092, China)

  • Diming Lou

    (College of Automotive Studies, Tongji University, Shanghai 200092, China)

  • Liang Fang

    (College of Automotive Studies, Tongji University, Shanghai 200092, China)

Abstract

This contribution is focused on the fuel economy improvement of the Miller cycle under part-load characteristics on a supercharged DI (Direct Injection) gasoline engine. Firstly, based on the engine bench test, the effects with the Miller cycle application under 3000 rpm were studied. The results show that the Miller cycle has different extents of improvement on pumping loss, combustion and friction loss. For low, medium and high loads, the brake thermal efficiency of the baseline engine is increased by 2.8%, 2.5% and 2.6%, respectively. Besides, the baseline variable valve timing (VVT) is optimized by the test. Subsequently, the 1D CFD (Computational Fluid Dynamics) model of the Miller cycle engine after the test optimization at the working condition of 3000 rpm and BMEP (Brake Mean Effective Pressure) = 10 bar was established, and the influence of the combined change of intake and exhaust valve timing on Miller cycle was studied by simulation. The results show that as the effect of the Miller cycle deepens, the engine’s knocking tendency decreases, so the ignition timing can be further advanced, and the economy of the engine can be improved. Compared with the brake thermal efficiency of the baseline engine, the final result after simulation optimization is increased from 34.6% to 35.6%, which is an improvement of 2.9%.

Suggested Citation

  • Xuewei Pan & Yinghua Zhao & Diming Lou & Liang Fang, 2020. "Study of the Miller Cycle on a Turbocharged DI Gasoline Engine Regarding Fuel Economy Improvement at Part Load," Energies, MDPI, vol. 13(6), pages 1-26, March.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:6:p:1500-:d:335570
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1996-1073/13/6/1500/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/1996-1073/13/6/1500/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Zhao, Jinxing, 2017. "Research and application of over-expansion cycle (Atkinson and Miller) engines – A review," Applied Energy, Elsevier, vol. 185(P1), pages 300-319.
    Full references (including those not matched with items on IDEAS)

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. José R. Serrano & Francisco J. Arnau & Jaime Martín & Ángel Auñón, 2020. "Development of a Variable Valve Actuation Control to Improve Diesel Oxidation Catalyst Efficiency and Emissions in a Light Duty Diesel Engine," Energies, MDPI, vol. 13(17), pages 1-26, September.
    2. Michał Głogowski & Przemysław Kubiak & Szymon Szufa & Piotr Piersa & Łukasz Adrian & Mateusz Krukowski, 2021. "The Use of the Fourier Series to Analyze the Shaping of Thermodynamic Processes in Heat Engines," Energies, MDPI, vol. 14(8), pages 1-23, April.
    3. Luke Oxenham & Yaodong Wang, 2021. "A Study of the Impact of Methanol, Ethanol and the Miller Cycle on a Gasoline Engine," Energies, MDPI, vol. 14(16), pages 1-24, August.
    4. Motong Yang & Yaodong Wang, 2023. "Application of Miller Cycle and Net-Zero Fuel(s) to Diesel Engine: Effect on the Performance and NOx Emissions of a Single-Cylinder Engine," Energies, MDPI, vol. 16(5), pages 1-21, March.

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Osorio, Julian D. & Rivera-Alvarez, Alejandro, 2018. "Efficiency enhancement of spark-ignition engines using a Continuous Variable Valve Timing system for load control," Energy, Elsevier, vol. 161(C), pages 649-662.
    2. Shen, Kai & Xu, Zishun & Chen, Hong & Zhang, Zhendong, 2021. "Investigation on the EGR effect to further improve fuel economy and emissions effect of Miller cycle turbocharged engine," Energy, Elsevier, vol. 215(PB).
    3. Wang, Dawei & Shi, Lei & Zhu, Sipeng & Liu, Bo & Qian, Yuehua & Deng, Kangyao, 2020. "Numerical and thermodynamic study on effects of high and low pressure exhaust gas recirculation on turbocharged marine low-speed engine," Applied Energy, Elsevier, vol. 261(C).
    4. Pedrozo, Vinícius B. & Zhao, Hua, 2018. "Improvement in high load ethanol-diesel dual-fuel combustion by Miller cycle and charge air cooling," Applied Energy, Elsevier, vol. 210(C), pages 138-151.
    5. Wang, Rumin & Qiao, Junhao & Jia, Dongdong & Shen, Dazhi & Duan, Xiongbo & Liu, Jingping, 2024. "Effects of asynchronous late intake valve closing combined with high geometric compression ratio and exhaust gas recirculation on combustion and fuel consumption in a turbocharged SI engine:An experim," Energy, Elsevier, vol. 290(C).
    6. Zambalov, Sergey & Kasaev, Dmitry & Yakovlev, Igor & Ji, Changwei & Yang, Jinxin & Maznoy, Anatoly, 2024. "Effect of over-expansion in a cycloidal rotary engine," Energy, Elsevier, vol. 302(C).
    7. Li, Yangtao & Khajepour, Amir & Devaud, Cécile & Liu, Kaimin, 2017. "Power and fuel economy optimizations of gasoline engines using hydraulic variable valve actuation system," Applied Energy, Elsevier, vol. 206(C), pages 577-593.
    8. Chen, Guisheng & Sun, Min & Li, Junda & Wang, Jiguang & Shen, Yinggang & Liang, Daping & Xiao, Renxin, 2024. "Study on high-altitude ceiling strategy of compression ignition aviation piston engines based on BP-NSGA II algorithm optimization," Energy, Elsevier, vol. 294(C).
    9. Li, Yangtao & Khajepour, Amir & Devaud, Cécile, 2018. "Realization of variable Otto-Atkinson cycle using variable timing hydraulic actuated valve train for performance and efficiency improvements in unthrottled gasoline engines," Applied Energy, Elsevier, vol. 222(C), pages 199-215.
    10. Lu, Yiji & Roskilly, Anthony Paul & Yu, Xiaoli & Jiang, Long & Chen, Longfei, 2018. "Technical feasibility study of scroll-type rotary gasoline engine: A compact and efficient small-scale Humphrey cycle engine," Applied Energy, Elsevier, vol. 221(C), pages 67-74.
    11. Rocha, Déborah Domingos da & de Castro Radicchi, Fábio & Lopes, Gustavo Santos & Brunocilla, Marcello Francisco & Gomes, Paulo César de Ferreira & Santos, Nathalia Duarte Souza Alvarenga & Malaquias, , 2021. "Study of the water injection control parameters on combustion performance of a spark-ignition engine," Energy, Elsevier, vol. 217(C).
    12. Zhao, Jinxing & Fu, Rui & Wang, Sen & Xu, Hongchang & Yuan, Zhiyuan, 2022. "Fuel economy improvement of a turbocharged gasoline SI engine through combining cooled EGR and high compression ratio," Energy, Elsevier, vol. 239(PE).
    13. Zhu, Sipeng & Liu, Sheng & Qu, Shuan & Deng, Kangyao, 2017. "Thermodynamic and experimental researches on matching strategies of the pre-turbine steam injection and the Miller cycle applied on a turbocharged diesel engine," Energy, Elsevier, vol. 140(P1), pages 488-505.
    14. Andrzej Szałek & Ireneusz Pielecha, 2021. "The Influence of Engine Downsizing in Hybrid Powertrains on the Energy Flow Indicators under Actual Traffic Conditions," Energies, MDPI, vol. 14(10), pages 1-12, May.
    15. Jeongwoo Song & Han Ho Song, 2020. "Analytical Approach to the Exergy Destruction and the Simple Expansion Work Potential in the Constant Internal Energy and Volume Combustion Process," Energies, MDPI, vol. 13(2), pages 1-24, January.
    16. Michał Głogowski & Przemysław Kubiak & Szymon Szufa & Piotr Piersa & Łukasz Adrian & Mateusz Krukowski, 2021. "The Use of the Fourier Series to Analyze the Shaping of Thermodynamic Processes in Heat Engines," Energies, MDPI, vol. 14(8), pages 1-23, April.
    17. Teodosio, Luigi & Pirrello, Dino & Berni, Fabio & De Bellis, Vincenzo & Lanzafame, Rosario & D'Adamo, Alessandro, 2018. "Impact of intake valve strategies on fuel consumption and knock tendency of a spark ignition engine," Applied Energy, Elsevier, vol. 216(C), pages 91-104.
    18. Liu, Chang & Zhang, Zhiyuan & Ren, Peirong & Wei, Yidi & Jia, Boru & Zuo, Zhengxing & Wang, Wei & Feng, Huihua, 2024. "Application of semi-direct fuel injection system to free piston engine generator for better performance: Simulation approach with validation results," Energy, Elsevier, vol. 298(C).
    19. Xiangtao Kong & Yaodong Wang, 2024. "Applications of Oxyhydrogen, Direct Water Injection, and Early-Intake Valve Closure Technologies on a Petrol Spark Ignition Engine—A Path towards Zero-Emission Hydrogen Internal Combustion Engines," Energies, MDPI, vol. 17(9), pages 1-31, April.
    20. Yuh-Yih Wu & James H. Wang & Faizan Mushtaq Mir, 2018. "Improving the Thermal Efficiency of the Homogeneous Charge Compression Ignition Engine by Using Various Combustion Patterns," Energies, MDPI, vol. 11(11), pages 1-20, November.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:gam:jeners:v:13:y:2020:i:6:p:1500-:d:335570. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.