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Fuel economy analysis of part-load variable camshaft timing strategies in two modern small-capacity spark ignition engines

Author

Listed:
  • Bonatesta, F.
  • Altamore, G.
  • Kalsi, J.
  • Cary, M.

Abstract

Variable Camshaft Timing strategies have been investigated at part-load operating conditions in two 3-cylinder, 1.0-litre, Spark Ignition engines. The two small-size engines are different variants of the same 4-valve/cylinder, pent-roof design platform. The first engine is naturally aspirated, port fuel injection and features high nominal compression ratio of 12:1. The second one is the turbo-charged, direct injection version, featuring lower compression ratio of 10:1. The aim of the investigation has been to identify optimal camshaft timing strategies which maximise engine thermal efficiency through improvements in brake specific fuel consumption at fixed engine load.

Suggested Citation

  • Bonatesta, F. & Altamore, G. & Kalsi, J. & Cary, M., 2016. "Fuel economy analysis of part-load variable camshaft timing strategies in two modern small-capacity spark ignition engines," Applied Energy, Elsevier, vol. 164(C), pages 475-491.
    • Handle: RePEc:eee:appene:v:164:y:2016:i:c:p:475-491
    DOI: 10.1016/j.apenergy.2015.11.057
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    Citations

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    Cited by:

    1. Ramasamy, D. & Zainal, Z.A. & Kadirgama, K. & Walker-Gitano Briggs, Horizon, 2016. "Effect of dissimilar valve lift on a bi-fuel CNG engine operation," Energy, Elsevier, vol. 112(C), pages 509-519.
    2. 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.
    3. 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.
    4. Davide D. Sciortino & Fabrizio Bonatesta & Edward Hopkins & Changho Yang & Denise Morrey, 2017. "A Combined Experimental and Computational Fluid Dynamics Investigation of Particulate Matter Emissions from a Wall-Guided Gasoline Direct Injection Engine," Energies, MDPI, vol. 10(9), pages 1-27, September.
    5. Pauras Sawant & Michael Warstler & Saiful Bari, 2018. "Exhaust Tuning of an Internal Combustion Engine by the Combined Effects of Variable Exhaust Pipe Diameter and an Exhaust Valve Timing System," Energies, MDPI, vol. 11(6), pages 1-16, June.
    6. Sahoo, Sridhar & Srivastava, Dhananjay Kumar, 2021. "Effect of compression ratio on engine knock, performance, combustion and emission characteristics of a bi-fuel CNG engine," Energy, Elsevier, vol. 233(C).
    7. Ali, Mohamed Kamal Ahmed & Fuming, Peng & Younus, Hussein A. & Abdelkareem, Mohamed A.A. & Essa, F.A. & Elagouz, Ahmed & Xianjun, Hou, 2018. "Fuel economy in gasoline engines using Al2O3/TiO2 nanomaterials as nanolubricant additives," Applied Energy, Elsevier, vol. 211(C), pages 461-478.
    8. Han, Xiaoye & Yu, Shui & Tjong, Jimi & Zheng, Ming, 2020. "Study of an innovative three-pole igniter to improve efficiency and stability of gasoline combustion under charge dilution conditions," Applied Energy, Elsevier, vol. 257(C).

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