Spark Ignition engines: Mixture requirement-Fuel injection systems. Stochiometric combustion-combustion with excess air-equivalence ratio Stages of combustion: Normal and Abnormal combustion-Knock. Combustion chambers.Simple thermodynamic analysis of SI engine combustion. (13 hours)
Compression ignition engines: Nature of combustion in IC engines-Direct and Indirect injection systems- Air motion- Combustion Chambers-Spray penetration and evaporation. Supercharging – Turbo charging. Thermodynamic analysis of CI engine combustion. WankelEngine: Operation & applications. Hybrid engines. Thermo chemistry: Pollutant formation, Instrumentation to measure pollutants-Pollutant calculation-Effect of air- fuel ratio.
Emission standards: EGR on engine emissions-Emission standards-Emission control devices. Thermal & catalytic exhaust clean-up-catalysts-automotive catalytic converters-Engine modifications to reduce emissions. Heat release analysis of IC engines.
Alternate Fuels: Engine modifications for alternate fuels (liquid and gaseous fuels), homogenous charge compression ignition engines.Additives for enhancing performance and pollution control.