Synergistic Performance and Emission Optimisation of a Two-Stroke SI Engine Using Mg-PSZ Thermal Barrier Coated Piston With Ethanol–Butanol Blends Through ANN–NSGA-II–TOPSIS Approach

Avns Kiran; Arun Kumar Kurakula; H S Anantha Padmanabha; B Venkatesh

doi:10.5935/jetia.v12i60.3908

Authors

Avns Kiran Department of Mechanical Engineering, SVUCE, Sri Venkateswara University, Tirupati, Tirupati Dist. A.P India
Arun Kumar Kurakula Department of Computer Science Engineering, Siddhartha Institute of Engineering and Technology, Puttur, A.P India
H S Anantha Padmanabha Department of Mechanical Engineering, PVKK Institute of Technology, Rudrampeta, Anantapuram, Anantapuram, A.P, India
B Venkatesh Department of Mechanical Engineering, School of Engineering, Annamacharya University, Rajampeta, Annamayya Dist. A.P, India

DOI:

https://doi.org/10.5935/jetia.v12i60.3908

Abstract

This paper reaches an assessment of the performance and emission traits of a two-stroke spark-ignition engine that is run with gasoline, E20, and B20 fuel under normal and Mg-PSZ-coated piston set ups. The characterization of fuels through GC and FTIR-generated stable mixtures and effective incorporation of the oxygenated functional groups. E20 in uncoated form enhanced brake thermal efficiency (BTE) by about 4-6 % than gasoline, and lowered HC and CO by 8-12 and 10-15 % respectively. Mg-PSZ coating increased the BTE by 5-8 percent and decreased the total fuel consumption by 3-6 percent at all loads. Coated conditions resulted in a further reduction of HC and CO emissions of 10-18%. ANN modeling resulted in R2 values in excess of 0.92 and NSGA-II-TOPSIS optimization established a coated high-load case with an overall 9-12% improvement in the performance-emission which shows high level of synergy between oxygenated fuels and thermal barrier coating.