Analysis of combustion characteristics, engine performance and exhaust emissions of diesel engine fueled with upgraded waste source fuel

• Published in: International journal of hydrogen energy Vol. 42; no. 28; pp. 17993 - 18004
• Main Authors: Adam, Abdullah, Ramlan, Nur Atiqah, Jaharudin, Nur Fauziah, Hamzah, Herzwan, Othman, Mohd Fahmi, Mrwan, Anes Abdulla G.
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 13.07.2017
• Subjects: Diesel; Emissions; Particulate matter; Upgraded waste source fuel; Waste cooking oil; Waste cooking oil; Diesel; Performance; Upgraded waste source fuel; Particulate matter; Emissions
• ISSN: 0360-3199; 1879-3487
• DOI: 10.1016/j.ijhydene.2017.04.021

Utilization of the waste products as an alternative fuel could reduce the dependence on fossil fuel. The three types of upgraded waste source fuels discussed in this paper were tire derived fuel (TDF), waste plastic disposal fuel (WPD) and upgraded waste cooking oil (UWCO). The detailed combustion pressure showed that kinematic viscosity and cetane number played an important role in determining the combustion quality. TDF's high kinematic viscosity and low cetane number affected its fuel vaporization process; thus, lengthening its ignition delay. UWCO showed the 14% higher power and 13.8% higher torque compared to diesel fuel (DF). WPD produced the lowest NOx due to its low pressure curve during combustion. TDF had produced the highest exhaust emissions (CO, CO2, NO and NOx). Particulate matter (PM) emissions by UWCO blends were lower than DF. UWCO's soot concentration was 40% lower than DF and increased to 62.5% from low to high engine speed operation. •Comparison of engine performances and emissions of upgraded waste source fuels.•Upgraded waste source fuels were experimented with unmodified diesel engine.•TDF has long ignition delay at all speed due to its high kinematic viscosity.•Power curve of UWCO is 14% higher than DF.•UWCO B100 produce lower PM and 40% lower soot than DF at 1200 rpm.