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Hydrodynamic Conjunction of Textured Journal Surface—Bearing for Improved Frictional Response during Warm-Up of an Internal Combustion Engine

Author

Listed:
  • Ali Usman

    (Department of Mechanical Engineering, COMSATS University Islamabad, Wah Cantt 47040, Pakistan)

  • Sadia Riaz

    (Department of Mechanical Engineering, NUST College of EME, National University of Sciences and Technology, Islamabad 44000, Pakistan)

  • Cheol Woo Park

    (School of Mechanical Engineering, Kyungpook National University, Daegu 701-702, Korea)

Abstract

Considerable prime global energy is used in the transport sector. Significant energy is lost to overcome the internal friction of engines in transport vehicles. Journal bearings are crucial tribo-pairs and passive components that cause energy loss. Frictional losses increase extensively during the warm-up period of an engine due to high lubricant viscosity. Recent tribological developments have shown that surface textures can be a potential solution to reduce friction. A numerical investigation is performed to evaluate the effect of surface texture on the frictional and lubrication performance of a journal bearing at varying thermal operating conditions in an internal combustion engine. Temperature variations during engine warm-up are considered with oil rheology to observe texture-based improvements. Surface texture substantially reduces frictional energy loss during engine warm-up. Eight different monograde and multigrade engine oils are considered, and consistency is observed in texture-based improved outcomes.

Suggested Citation

  • Ali Usman & Sadia Riaz & Cheol Woo Park, 2018. "Hydrodynamic Conjunction of Textured Journal Surface—Bearing for Improved Frictional Response during Warm-Up of an Internal Combustion Engine," Energies, MDPI, vol. 11(12), pages 1-15, December.
    • Handle: RePEc:gam:jeners:v:11:y:2018:i:12:p:3515-:d:191192
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    Cited by:

    1. Rasep, Z. & Muhammad Yazid, M.N.A.W. & Samion, S., 2021. "Lubrication of textured journal bearing by using vegetable oil: A review of approaches, challenges, and opportunities," Renewable and Sustainable Energy Reviews, Elsevier, vol. 146(C).

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