Performance optimization of an engine for canola oil blended diesel with Al2O3 nanoparticles through single and multi-objective optimization techniques

• Published in: Fuel (Guildford) 2021-03, Vol.288, p.119617, Article 119617
• Main Authors: Ramesh, Praveen, Vivekanandan, Sathya, Sivaramakrishnan, Prakash, D.
• Format: Article
• Language: English
• Subjects: Aluminum; Aluminum oxide; Biodiesel; Biofuels; Brake thermal efficiency; Canola; Canola oil; Diesel; Diesel engines; Diesel fuels; Emission; Emissions; Fuel injection; Injection; Multiple objective analysis; Nanoparticle; Nanoparticles; Nitrogen oxides; Optimization; Optimization techniques; Photochemicals; Response surface methodology; Thermodynamic efficiency
• ISSN: 0016-2361; 1873-7153
• DOI: 10.1016/j.fuel.2020.119617

•Canola oil blended with diesel with Al2O3 nanoparticle added fuel is prepared.•The fuel is tested in four stroke single cylinder diesel engine for combustion performance and emission.•Single and multi-objective optimization techniques are employed to maximize brake thermal efficiency and to minimize NOx emission.•The optimum value improves the brake thermal efficiency by 16% and reduce the NOx emission by 3% with reference to diesel fuel. In the present work, a four-stroke single-cylinder diesel engine's combustion and emission performance are improved through optimization techniques. The diesel engine is fueled with canola oil blended diesel with aluminium oxide nanoparticles. Taguchi’s signal to noise (S/N) ratio method, grey relational method, and response surface method are employed to maximize the brake thermal efficiency (BTE) and minimize the nitrogen oxide (NOx) emissions and fuel cost. Canola oil blend percentage, nanoparticles' concentration, fuel injection pressure, and fuel injection timing are the considered influencing parameters. The predicted optimum values are compared for validity and found a fair agreement. Finally, the best value is identified as Canola oil blend percentage = 18.8%, concentration of nanoparticles = 30 ppm, fuel injection pressure = 220 bar and fuel injection timing = 21° before top dead center (bTDC) and this combination improve BTE by 16% and reduce the NOx by 3% with reference to diesel fuel.