Emission Characteristics Study of Environment Friendly Karanja Oil with various Additives in VCR Engine M. Murthi K.*, Dr. Nithiyanandam S.** *Professor, Department of Mechanical Engineering, Nandha Engineering College, Erode, Tamilnadu, India **Director, Jay Shriram Group of Institutions, Tirupur, Tamilnadu, India Online published on 14 October, 2016. Abstract In order to meet the energy necessities, there has been growing awareness in alternative fuels like biodiesel, biogas, LPG to offer a suitable diesel for internal combustion engine. Due to the lesser amount of carbon content present in the vegetable oil compared to mineral diesel, the vegetable oil produces fewer CO2 emissions to the atmosphere. The main objective of this paper is to investigate the emission characteristics of variable compression ratio diesel engine fuelled with karanja oil 20% (B20) and diethyl ether, ethanol and methanol as an additives by adding 5% and 10% at constant speed of 1500 rpm with varying loads and the two compression ratios (17 and 18). The suitability of karanja oil with diethyl ether, ethanol, and methanol is established as a biofuel in this analysis. The exhaust emissions like carbon monoxide, hydrocarbons and carbon dioxide got reduced compared to standard diesel. Top Keywords Karanja oil, Transesterification process, Diethyl ether, Ethanol, Methanol, VCR Engine, Emission characteristics, Environmental protection, Compression ratio. Top |