Experimental Investigations on Four-Stroke D.I Diesel Engine by using Diesel-Water Emulsions in LHR
International Journal for Research in Applied Science and Engineering Technology
In this experimental investigation the ceramic coating was applied to the top surface of the piston, bottom surface of the cylinder head and valve facings. The material used for the ceramic coating was partially stabilized zirconia (PSZ). The coating was applied by plasma arc spraying process. The coated engine may be termed as Low Heat Rejection (LHR) engine or Thermal Barrier Coated (TBC) engine. The reason for applying the ceramic coating was to retain the heat produced during combustion,
... ring combustion, and accelerate the micro-explosion process taking place in case of emulsified fuels. The heat retained in the combustion chamber might lead to an improvement in the brake thermal efficiency and reduced emissions. The performance and emission parameters of diesel, N20 biodiesel, and diesel-water emulsions were analyzed in Low Heat Rejection (LHR) engine. It was found that there was a marginal increase of brake thermal efficiency for both reference and test fuels when compared to conventional engine. Also there was more reduction in emission parameters for emulsified fuels than conventional fuel (diesel) and N20 biodiesel. DWM3 gave out the best results among all other fuels. The DWM1 has the content of 95% diesel, 4% water, and 1% surfactants. DWM2 has a composition of 91% diesel, 8% water, and 1% surfactants. DWM3 has a composition of 87% diesel, 12% water, and 1% surfactants. I.