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Influence of Pilot-Fueling and Nozzle-Opening Pressure on Performance and Tailpipe Emissions of WCO Biodiesel in a CRDi Engine

Author

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  • Lawrence Joseph Fernandes

    (Mechanical Engineering Department, Mangalore Institute of Technology & Engineering, Visvesvaraya Technological University, Moodabidre 574225, Karnataka, India
    Mechanical Engineering Department, Sahyadri College of Engineering & Management, Visvesvaraya Technological University, Mangalore 575007, Karnataka, India)

  • C. R. Rajashekhar

    (Mechanical Engineering Department, Mangalore Institute of Technology & Engineering, Visvesvaraya Technological University, Moodabidre 574225, Karnataka, India)

  • T. M. Yunus Khan

    (Department of Mechanical Engineering, College of Engineering, King Khalid University, Abha 61421, Saudi Arabia)

  • Syed Javed

    (Department of Mechanical Engineering, College of Engineering, King Khalid University, Abha 61421, Saudi Arabia)

  • Rahmath Ulla Baig

    (Department of Industrial Engineering, College of Engineering, King Khalid University, Abha 61421, Saudi Arabia)

Abstract

Pilot-fueling and nozzle-injection pressure are significant injection parameters, and they have significant impacts on modern vehicles for enhancing the engine output, in addition to meeting rigorous tailpipe-exhaust emission standards. In this current work, the influence of the pilot-fueling pressure and nozzle-opening pressure (NOP) on the engine performance and tailpipe outcomes from a compression-ignition (CI) engine at a higher injection pressure and varying load conditions was investigated using a waste cooking oil (WCO) biodiesel (B20). The experiments were executed in a high-pressure CRDi-fitted diesel engine at the start of pilot fueling (SOPF) (timing: 23° bTDC), and at the start of the main fueling (SOMF) (timing: 33° bTDC). The results showed that the combined influence of the pilot-fueling and nozzle-opening pressure induced a remarkable enhancement in the BTE, by 25.13%, and the BSFC decreased by 13.88%, compared with diesel at 10% pilot fueling. Carbon monoxide, hydrocarbon, and smoke emissions were drastically reduced for the higher pilot-fueling quantity by 21.05%, 16.66%, and 33.10%, respectively, compared with the diesel at 10% pilot fueling. With the implementation of the pilot-fueling strategy, there is no effect on the NOx reduction.

Suggested Citation

  • Lawrence Joseph Fernandes & C. R. Rajashekhar & T. M. Yunus Khan & Syed Javed & Rahmath Ulla Baig, 2022. "Influence of Pilot-Fueling and Nozzle-Opening Pressure on Performance and Tailpipe Emissions of WCO Biodiesel in a CRDi Engine," Sustainability, MDPI, vol. 14(18), pages 1-14, September.
    • Handle: RePEc:gam:jsusta:v:14:y:2022:i:18:p:11146-:d:908041
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    References listed on IDEAS

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