Experimental Studies on Two Stroke SI Engine by Using Novel Piston and Gasoline Blends

Abstract

It is well known fact that thermal efficiency of the two stroke engines on road usually ranges from nearly 35 % to 45 % and remaining energy is dissipated to the surrounding media. Therefore, it becomes the primary need to improve the engine performance. From the past decade and so and exhaustive research is carried by various researchers towards attaining higher level of the engine performance by doing certain modifications of the engine component family. Majority of researches focused on adding of coatings on pistons and by using the blends the performance characteristics are studied. The main aim of the present work is to develop a novel piston that reduces the percentage level of pollutants release to atmosphere and aid in improving the performance of the system. The work mainly focused on influence of novel piston and different blends in enhancing the engine performance and suppressing the level of emissions, thereby reducing the global working effects. The experiments are performed on single cylinder two stroke SI engine by using conventional piston, novel piston-1 (Bi metallic piston with copper piston crown), novel piston-2 (Bi metallic piston with Br piston) and different blends. It is noticed that the emission levels of pollutants got reduced by using novel piston-1and E20 blend and performance wise also novel piston-1 and M20 blend gave the best results in overcoming the burning issues in two stroke SI engines.

Control of Exhaust Emissions Using Piston Coating on Two-StrokeSI Engines with Gasoline Blends

“…In the article [2], the authors carried out their experimental investigations on two-stroke SI engines using a novel piston and gasoline blends as ethanol and methanol to observe the exhaust emissions and engine performance. From the experimentation results, the exhaust emissions are HC and CO is minimized by 10-15 %, and 7-12 % for ethanol-gasoline blend, the brake thermal efficiency is maximized by 1.0 %, and SFC is minimized by 10-12 % for methanol gasoline blend for a novel piston.…”