2Assistant Professor, Department of Mechanical Engineering, Siddhartha Academy of Higher Education Deemed to be University, Vijayawada, Andhra Pradesh, 520010, India
3Researcher, Department of Engineering Science, Division of Subtractive and Additive Manufacturing, University West, Trollhättan, 46186, Sweden
4Professor, Department of Mechanical Engineering, Mohan Babu University, Tirupathi, Andhra Pradesh, 520010, India
5Professor, Department of Mechanical Engineering, Mohan Babu University, Tirupathi, Andhra Pradesh, 520010, India
Abstract
The performance, combustion, and exhaust emissions analysis was carried out on a one-cylinder Direct Injection Diesel engine that was done using Mahua biodiesel blend contains (25% Mahua BD and 75% diesel along with 100 ppm of (Al2O3) nano additive and 20% exhaust gas recirculation with varying load from 0 to full load with a step of 25%. This study shows that the BTE was improved by almost 5.53% with the addition of Alumina nano additive to Mahua bio diesel blend. The combination of nano additives and 20% EGR to MB25 fuel, 3.4% raise in BTE was observed. The BSFC for nano additive mahua biodiesel blend with 20% EGR decreased by 2.34% than the Mahua biodiesel blend. This shows that using alumina additive and exhaust gas recirculation with the biodiesel blend increases the brake power and fuel efficiency than the biodiesel blend. However, concerning exhaust emissions, mahua biodiesel blend with alumina nano additive containing 20% EGR, generated 14.8% less nitrogen oxides (NOx), on the other hand, hydrocarbons (HC), carbon monoxide (CO), and smoke were increased 10.2%, 12.7%, and 9.1%, respectively than MB25. Overall, findings suggest that the use of alumina nano additive in Mahua biodiesel with 20% exhaust gas recirculation improves the engine performance and an increase in HC, CO and smoke emissions by reducing the NOx emissions than the nano additive biodiesel fuel and MB25 and biodiesel blend with 20% EGR.
