Experimental investigations on diesel engine using alumina nanoparticle fuel additive

Author:

Gad Mohammed S1ORCID,Abdel Razek Sayed M2,Manu PV3,Jayaraj Simon3

Affiliation:

1. Mechanical Engineering Department, Faculty of Engineering, Fayoum University, Fayoum, Egypt

2. Mechanical Engineering Department, Misr University for Science and Technology, 6th of October City, Giza, Egypt

3. Mechanical Engineering Department, National Institute of Technology Calicut, Calicut, Kerala, India

Abstract

Experimental work was done to examine the impact of diesel fuel with alumina nanoparticles on combustion characteristics, emissions and performance of diesel engine. Alumina nanoparticles were mixed with crude diesel in various weight fractions of 20, 30, and 40 mg/L. The engine tests showed that nano alumina addition of 40 ppm to pure diesel led to thermal efficiency enhancement up to 5.5% related to the pure diesel fuel. The average specific fuel consumption decrease about neat diesel fuel was found to be 3.5%, 4.5%, and 5.5% at dosing levels of 20, 30, and 40 ppm, respectively at full load. Emissions of smoke, HC, CO, and NOXwere found to get diminished by about 17%, 25%, 30%, and 33%, respectively with 40 ppm nano-additive about diesel operation. The smaller size of nanoparticles produce fuel stability enhancement and prevents the fuel atomization problems and the clogging in fuel injectors. The increase of alumina nanoparticle percentage in diesel fuel produced the increases in cylinder pressure, cylinder temperature, heat release rate but the decreases in ignition delay and combustion duration were shown. The concentration of 40 ppm alumina nanoparticle is recommended for achieving the optimum improvements in the engine’s combustion, performance and emission characteristics.

Publisher

SAGE Publications

Subject

Mechanical Engineering

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