Exploring the Impact of Al2O3 Additives in Gasoline on HCCI-DI Engine Performance: An Experimental, Neural Network, and Regression Analysis Approach

Lionus Leo George Mary; Subramanian Manivel; Shalini Garg; Vinoth Babu Nagam; Komal Garse; Ranjit Mali; T M Yunus Khan; Rahmath Ulla Baig

doi:10.1021/acsomega.3c05959

Exploring the Impact of Al₂O₃ Additives in Gasoline on HCCI-DI Engine Performance: An Experimental, Neural Network, and Regression Analysis Approach

ACS Omega. 2023 Dec 7;8(50):47701-47713. doi: 10.1021/acsomega.3c05959. eCollection 2023 Dec 19.

Authors

Lionus Leo George Mary¹, Subramanian Manivel¹, Shalini Garg², Vinoth Babu Nagam³, Komal Garse⁴, Ranjit Mali⁴, T M Yunus Khan⁵, Rahmath Ulla Baig⁶

Affiliations

¹ Department of Mechanical Engineering, St. Joseph's College of Engineering, Old Mamallapuram Road, Chennai 600119, Tamil Nadu, India.
² MIT Art Design and Technology University, Pune 412201, Maharashtra, India.
³ Department of Mechanical Engineering, Rajalakshmi Engineering College, Chennai 602105, Tamil Nadu, India.
⁴ Department of Mechanical Engineering, Sinhgad College of Engineering, Pune 411041, Maharashtra, India.
⁵ Department of Mechanical Engineering, College of Engineering, King Khalid University, Abha 61421, Saudi Arabia.
⁶ Department of Industrial Engineering, College of Engineering, King Khalid University, Abha 61421, Saudi Arabia.

Abstract

This study delves into the influence of incorporating alumina (Al₂O₃) nanoparticles with waste cooking oil (WCO) biofuels in a gasoline engine that employs premixed fuel. During the suction phase, gasoline blends with atmospheric air homogeneously at the location of the inlet manifold. The biodiesel, enhanced with Al₂O₃ nanoparticles and derived from WCO, is subsequently directly infused into the combustion chamber at 23° before the top dead center. The results highlight that when gasoline operates in the homogeneous charge compression ignition with direct injection (HCCI-DI) mode, there is a notable enhancement in thermal efficiency by 4.23% in comparison to standard diesel combustion. Incorporating the Al₂O₃ nanoparticles with the WCO biodiesel contributes to an extra rise of 6.76% in thermal efficiency. Additionally, HCCI-DI combustion paves the way for a reduction in nitrogen oxides and smoke emissions, whereas biodiesel laced with Al₂O₃ nanoparticles notably reduces hydrocarbon and carbon monoxide discharges. Predictive tools such as artificial neural networks and regression modeling were employed to forecast engine performance variables.