Experimental Evaluation Of A CI Engine Running On Blends Of Diesel And Methanol Fuel With Copper Oxide Nano Particles

The energy demands of the present world are increasing day by day with the reduction in availability of fossil fuel resources. In order to meet the energy demands, various automotive industries are focusingon alternative sources of energy in which biodiesel have a significant impact. Biodiesel has a great impact in reducing the emissions compared with the diesel. Among the various sources of biodiesel available, methanol is the better choice. But there are certain disadvantages of using this biodiesel in CI engines. It emits more nitrous oxide than diesel and also it has more fuel consumption. So, in order to eliminate these drawbacks, copper oxide (CuO) is used as a nano additive. The nanoparticles added to the biodiesel reduce the ignition delay during the combustion process which results in improved thermal efficiency. These additives also improve the brake specific fuel consumption. Nitrous oxide is formed only at higher temperatures. Nitrogen reacts with oxygen to form oxides of nitrogen at higher temperature. The addition of nano additives reduces the ignition delay period to increase the combustion process. It also increases the heat exchange rate and reduces the engine temperature. Thus, nitrous oxide emission is greatly reduced. Since the surface area is more for nanoparticles it is also a reason for reduction in emission. It also acts as an antioxidant to prevent the oxidation process. This reduces the formation of nitrous oxides at higher temperature and reduces the emission.

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