Title: Impact of biodiesel blends on combustion and endurance individualities of diesel engine

Authors: G. Balasubramanian; P. Balashanmugam; K. Kumaravel; S. Sivaprakasam

Addresses: Department of Mechanical Engineering, FEAT, Annamalai University, Chidambaram, Tamil Nadu, India ' Department of Mechanical Engineering, FEAT, Annamalai University, Chidambaram, Tamil Nadu, India ' Department of Mechanical Engineering, FEAT, Annamalai University, Chidambaram, Tamil Nadu, India ' Department of Mechanical Engineering, FEAT, Annamalai University, Chidambaram, Tamil Nadu, India

Abstract: The biggest issue with operating vehicles in big cities is idling, and biodiesel is a viable alternative fuel. This study examined the effects of biodiesel blends on CO, NOx, and lubricating oil emissions to demonstrate their viability. The results show that biodiesel produced fewer CO and NOx emissions than diesel fuel. Increasing engine speed and load can further decrease emissions. The study also found that boosting engine braking power at lower loads lowered CO emissions. However, NOx releases were still high due to biodiesel's oxygen content. Adjusting engine load and mix ratio of biodiesel can reduce NOx production. The study also explored the combustion properties of biodiesel-butanol combinations at various injection pressures and their impact on NOx emissions. The findings suggest that biodiesel can be a viable alternative fuel for urban vehicles, with potential benefits for reducing emissions and improving engine performance.

Keywords: biodiesel production; blend fuels; plastic pyrolytic oil; palm oil biodiesel; diesel; endurance characteristics; diesel engine.

DOI: 10.1504/IJEWM.2025.150153

International Journal of Environment and Waste Management, 2025 Vol.38 No.4, pp.450 - 472

Received: 02 Feb 2024
Accepted: 19 May 2024
Published online: 02 Dec 2025 *

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