IDEAS home Printed from https://ideas.repec.org/a/eee/energy/v81y2015icp361-372.html
   My bibliography  Save this article

Effect of piston shape on in-cylinder flows and air–fuel interaction in a direct injection spark ignition engine – A CFD analysis

Author

Listed:
  • Harshavardhan, Ballapu
  • Mallikarjuna, J.M.

Abstract

DISI (Direct injection spark ignition engines) are very popular today because of their low fuel consumption and exhaust emissions due to their operation at lean stratified mixture. Their performance depends on the level of mixture stratification, which in turn depends on in-cylinder flows and air-fuel interaction at the time of fuel injection. However, these are very much affected by combustion chamber configuration, which in turn is mainly dependent upon the piston shape. In this study, a CFD (computational fluid dynamics) analysis is carried out to analyze in-cylinder air flows and air-fuel interaction created by different piston shapes viz., flat, flat-with-center-bowl, inclined and inclined-with-center-bowl pistons in a four-stroke engine at an engine speed of 1500 rev/min. Here, a start of fuel injection is considered at end of the suction stroke with a multi-hole injector operating at an injection pressure of 500 bar. Engine specifications are selected from the literature for which experimental data is available for comparison. Finally, it is found that flat-with-center-bowl piston results in about 51% higher tumble ratio and about 21% higher turbulent kinetic energy of in-cylinder flows, better mixture stratification along with 33% higher evaporation rate and 33% higher percentage of fuel evaporation as compared to those of flat piston.

Suggested Citation

  • Harshavardhan, Ballapu & Mallikarjuna, J.M., 2015. "Effect of piston shape on in-cylinder flows and air–fuel interaction in a direct injection spark ignition engine – A CFD analysis," Energy, Elsevier, vol. 81(C), pages 361-372.
    • Handle: RePEc:eee:energy:v:81:y:2015:i:c:p:361-372
    DOI: 10.1016/j.energy.2014.12.049
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0360544214014212
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.energy.2014.12.049?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    Citations

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


    Cited by:

    1. Chen, Yanlin & Li, Xiangrong & Li, Xiaolun & Zhao, Weihua & Liu, Fushui, 2019. "The wall-flow-guided and interferential interactions of the lateral swirl combustion system for improving the fuel/air mixing and combustion performance in DI diesel engines," Energy, Elsevier, vol. 166(C), pages 690-700.
    2. Allocca, L. & Lazzaro, M. & Meccariello, G. & Montanaro, A., 2016. "Schlieren visualization of a GDI spray impacting on a heated wall: Non-vaporizing and vaporizing evolutions," Energy, Elsevier, vol. 108(C), pages 93-98.
    3. Keskinen, Karri & Kaario, Ossi & Nuutinen, Mika & Vuorinen, Ville & Künsch, Zaira & Liavåg, Lars Ola & Larmi, Martti, 2016. "Mixture formation in a direct injection gas engine: Numerical study on nozzle type, injection pressure and injection timing effects," Energy, Elsevier, vol. 94(C), pages 542-556.
    4. Zhao, Xiaohuan & Liu, Fang & Wang, Chunhua, 2022. "Effects of different piston combustion chamber heights on heat transfer and energy conversion performance enhancement of a heavy-duty truck diesel engine," Energy, Elsevier, vol. 249(C).
    5. Rafaa Saaidia & Mohamed Ali Jemni & Mohamed Salah Abid, 2017. "Simulation and Empirical Studies of the Commercial SI Engine Performance and Its Emission Levels When Running on a CNG and Hydrogen Blend," Energies, MDPI, vol. 11(1), pages 1-22, December.
    6. Song, Jingeun & Kim, Taehoon & Jang, Jihwan & Park, Sungwook, 2015. "Effects of the injection strategy on the mixture formation and combustion characteristics in a DISI (direct injection spark ignition) optical engine," Energy, Elsevier, vol. 93(P2), pages 1758-1768.
    7. Krishna, Addepalli S. & Mallikarjuna, J.M. & Kumar, Davinder, 2016. "Effect of engine parameters on in-cylinder flows in a two-stroke gasoline direct injection engine," Applied Energy, Elsevier, vol. 176(C), pages 282-294.
    8. Kacem, Sahar Hadj & Jemni, Mohamed Ali & Driss, Zied & Abid, Mohamed Salah, 2016. "The effect of H2 enrichment on in-cylinder flow behavior, engine performances and exhaust emissions: Case of LPG-hydrogen engine," Applied Energy, Elsevier, vol. 179(C), pages 961-971.
    9. S. Sathishkumar & Dr. M. Kannan, 2019. "Topology Optimization Of Integrated Combustion Engine Piston Using F ea Method (Cae Tools)," Acta Mechanica Malaysia (AMM), Zibeline International Publishing, vol. 2(1), pages 1-5, January.
    10. Hamid, M. Fadzli & Idroas, M. Yusof & Mazlan, M. & Sa'ad, S. & Teoh, Y.H. & Che Mat, S. & Miskam, M.A. & Abdullah, M.K., 2022. "Methods for improving the in-cylinder airflow characteristics for sustainable transportation using fuels with higher viscosity: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 155(C).

    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:eee:energy:v:81:y:2015:i:c:p:361-372. 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.

    We have no bibliographic references for this item. You can help adding them by using 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: Catherine Liu (email available below). General contact details of provider: http://www.journals.elsevier.com/energy .

    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.