EXPERIMENTAL INVESTIGATION OF PERFORMANCE AND EMISSION CHARACTERISTICS OF HONGE OIL ON COATED PISTON WITH DIMETHYL CARBONATE AS AN ADDITIVE
Keywords:
Honge oil, Diesel engines performance, Chromium Carbide Coating, Dimethyl Carbonate, UHC- Unburned hydro carbons, CO- Carbon monoxide, NOx emissions.Abstract
oil and petroleum products will become very costly and scarce. Efforts are being made throughout the world today to reduce consumption of liquid petroleum fuels wherever it is possible. With increased use and depletion of fossil fuels, alternative fuels technology will become more essential. This led to the search for an alternative fuel which should be not only environment friendly but also sustainable without compromising on the performance. Many alternative fuels such as It is believed that crude Jatropha oil, Honge oil, canola oil and citronella oil gave improved performance and they are renewable, clean burning and having properties analogous to that of diesel.
Today, in developing countries like India, most of the transport vehicles are run on the diesel fuel. Diesel fueled vehicles discharge significant amount of pollutants like CO, HC, NOx, lead, soot which are harmful to the environment. Also the world’s fossil fuel reserves are depleting rapidly due to enormous growth of population and increased usage of technology.
The biodiesel fuels are most promising alternative among the different diesel alternatives. However high viscosity, poor volatility and cold flow characteristics of biodiesel fuels can cause some problems such as injection chocking, severe engine deposits filter gumming, piston ring sticking and thickening lubricant oils from long term Diesel engines.
Such problems can be eliminated by thermal barrier coating (insulation) on engine parts such as cylinder head, piston crown, valves etc. by atmospheric plasma spray technique. The diesel engine rejects 30% energy to coolant and 30% energy to the exhaust leaving only about 30% energy is the useful work. If the heat rejection could be reduced then the thermal efficiency energy would beimproved when compared with the without coated piston.
The objective of present work is determine the performance and emission characteristics of 4-stroke single cylinder diesel engine using honge oil with dimethyl carbonate as an additive on Chromium Carbide coating on piston crown as thermal barrier.
