EFFECT OF SPIRAL GROOVES IN PISTON BOWL ON EXHAUST EMISSIONS OF DIRECT INJECTION DIESEL ENGINE

Bhanu Pratap Patel, I J Patel, T M Patel, G P Rathod

Abstract: In present time developed and developing country are used from small to largest diesel engine as a power plant for different purpose like generating electricity and transportation. These engines consume in heavy quantity fuel per hour, where these engines produce the bulk power as well as there also produce the different types of toxic gases that harmful our human beings and environment. At this time both type of country try to reduce the harmful gases from diesel engine In present scenario many technology are used to reduce the toxicity of exhaust gases EGR (Exhaust Gas Recirculation) is one of them. Where EGR reduces the toxicity of exhaust gases and fuel consumption as well as their reduce the power of engine which is not good at any level. In this present experimental work to reduce the NOx, HC, CO, and CO2 some modification has been done in piston bowl by cutting three spiral grooves on inner surface of hemispherical bowl and slight increasing in bowl diameter. The spiral grooves increase the air capacity and slight reduce the compression ratio as well as make homogeneous mixing of air and fuel .This experiment is done on Kirloskar AV1 water cooled, natural aspirated direct injection diesel engine with pure diesel. In experiment it is observed the fuel consumption and NOx reduction by 0.1Kg per hour 8.82%. respectively.

Keywords: D.I.Diesel Engine, Spiral Grooved Piston, Swirl, Emissions

DOI: https://doi.org/10.15623/ijret.2014.0305027