Performance Analysis of an Air Driven Engine Modified from SI Engine

Abstract

In the present scenario, the population of vehicles run by the fossil fuels is increasing tremendously in each year. These fossil fuel resources are at fast depleting trend and they may exhaust by 2050. The combustion products of these fuels are causing peak environmental pollution. The mismatch between the demand and supply of fossil fuels and the associated pollution problems is directing the world to shift towards renewable energy resources. With the usage of the renewable energy sources the dependency on fossils fuels and the environmental pollution can be minimized. In order to bridge the gap between the demand and supply of the fossil fuels, the automobile sector is depending on the bio diesel and solar power for some extent. In the view of economic and pollution aspects usage of compressed air to run the engine is very interesting, as the concept of pneumatics is known to men for several centuries. The air driven engine uses the air as fuel which is available abundantly in eliminates the use of fossil fuels. The another beauty of this technology is that the pollution is negligible The basic two stroke petrol engine is converted into an air driven engine with slight modifications, and it is provided with solenoid valve, Valve activation system including valve timing disc and the electronic circuit. The engine is cranked by the kicker. So that, the crank shaft along with the valve timing disk will rotate in the clockwise direction. The valve of the compressor tank is opened gradually to the maximum under the no load condition. When the engine attains the speed the performance test is conducted at different load conditions within the pressure range of 1 to 9 bar. In Air Driven Engine, the speed is bound to increase with increase in the inlet pressure. The brake power is also increased with increase in the inlet pressure