*Professor, Department of Mechanical Engineering, Princeton College of Engineering & Technology, Hyderabad, India
**Professor, Department of Mechanical Engineering, JJ Institute of Information Technology, Hyderabad, India
Online published on 24 January, 2015.
Nowadays the diesel engines are most promising devices in the field of transportation and power sector. Performance of any heat engine is mainly based on the complete combustion of fuel inside the engine cylinder. Complete combustion of fuel depends on the availability of oxygen inside the engine cylinder and mixture strength. The air, which is supplied to the engine, contains lot of impurities like sulfur, nitrogen, and carbon Di oxide etc. these impurities affects the performance, and exhaust emissions. The air fuels mixture before combustion and the burned gases after combustion is actual working fluids. Supplying extra oxygen in the combustion chamber for complete combustion of fuel is one method, which will reduce HC, CO and smoke and could improve the brake thermal efficiency. It will also affect the formation of NOx directly and indirectly. A brief technology assessment will uncover the advantages and problems associated with quality of air supplied to the engine. In present work, performance and emission characteristics of single cylinder diesel engine with effect of intake oxygen air enrichment investigated. Added oxygen in combustion air leads to shorter ignition delay and offers more potential of burning diesel. Oxy-fuel combustion reduces the volume of fuel gases and reduces the greenhouse effect also. During study of available material it is found that oxygenated air is an effective method for reducing PM, CO, HC
Diesel Engine, Efficiency, Output Emission
