• Sudhir kumar
• Sujata Pouranik

Automobile sector is a growing field where there evolves a new technology every day. The recent trend in the automobile sector is to improve the efficiency and reduce the amount of pollutants. Increased pollution awareness and the consequent introduction of stringent emission norms throughout the world are forcing engine manufacturers to continue to investigate for strategies for reducing emissions which contributes to the study of air motion. The air motion plays a very important role in fuel-air mixing, combustion and emission formation. When the in-cylinder air motion is unsteady the efficiency of the engine gets reduced and emissions are increased. In the present work experiments are conducted on D.I. Diesel engine to investigate the influence of the injection timing on the performance and exhaust emissions characteristics of tangentially grooved piston direct injection diesel engine fueled with dual fuel like neat diesel and B20 (20% WVOME + 80% diesel). it is found that 200 bar is the optimum injection pressure with 20BD blend of COME, which has resulted in better performance and emission characteristics among the biodiesel blends. Based on the results it is concluded that the base line engine with tangential grooved piston configuration gives maximum performance in all aspects and reduces emissions. The main object of this project is to investigate the performance technique to enhance the air swirl to achieve betterment in engine performance and emission in a direct injection (DI) single cylinder diesel engine.

D.I. Diesel engine, waste vegetable methyl ester biodiesel, Tangential Grooved Pistons, Blended fuel, Brake thermal efficiency, Injection Timing, Emissions

"Influence of injection timing on the performance of DI engine by Tangential Grooves on Piston Crown", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 3, page no.492-497, March-2019, Available :http://www.jetir.org/papers/JETIR1903670.pdf

"Influence of injection timing on the performance of DI engine by Tangential Grooves on Piston Crown", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 3, page no. pp492-497, March-2019, Available at : http://www.jetir.org/papers/JETIR1903670.pdf