• K. Satish Kumar
• Dr.Smt.G.Prasanthi

In this investigation, the combustion, performance and emission characteristics of a diesel engine powered with symmetrically stepped curved-v piston (SSCVP) are studied. Engine tests have been carried out using standard diesel and biodiesel blends (S10-D90, S20-D80 and S30-D70). The S20-D80 blend gets better results compare to S10-D90 & S30-D70, and also adding different proportions of TBHQ additive to S20-D80 (S20-D80+500mg TBHQ and S20-D80+1000mg TBHQ). The engine withSSCV piston has shown improved performance characteristics, combustioncharacteristics and reduced hydrocarbon (HC), carbon monoxide (CO), and smoke emissions. Nevertheless, the nitrogen oxideemissions have been found to be slightly lower than the standardengine, this reduction in NOXis due to addition of Tert-Butyl Hydroquinone (TBHQ) additive to sesame biodiesel blend (S20). The experimental investigation revealed that engine with SSCV piston with 20% blend using additive (S20-D80+500mg) resulted in 5.79%, 4.36% more prominent performance characteristics of brake thermal efficiency, specific fuel consumption and superior emission diminution of 15.49% of HC, 13.33% of CO, 9.44% of smoke opacity when compared with base diesel fuel using standard piston, despite marginal penalty of 1.43% of NOX at 4.9 kW BP i.e. at 100% load condition. Combustion characteristics like cylinder pressure and heat release rate are superior for 20% blend using additive at peak load condition.

Combustion improvement and Energy efficient, Sesame biodiesel, Turbulence Inducementand Tert-Butyl Hydroquinone (TBHQ) additive.

"Experimental investigation on a symmetrically stepped curved v piston (SSCVP)for DI-diesel engine fuelled with sesame biodiesel and its blends with diesel using additive", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 6, page no.321-329, June-2018, Available :http://www.jetir.org/papers/JETIR1806170.pdf

"Experimental investigation on a symmetrically stepped curved v piston (SSCVP)for DI-diesel engine fuelled with sesame biodiesel and its blends with diesel using additive", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 6, page no. pp321-329, June-2018, Available at : http://www.jetir.org/papers/JETIR1806170.pdf