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U n i t - 1
Air StAndArd CyCleS
Otto, Diesel, and dual cycles, its comparison, Brayton Cycle.
ACtUAl CyCleS And tHeir AnAlySiS
Introduction, Comparison of air standard and actual cycles, Time loss factor, Heat loss factor, Exhaust blowdown –
Loss due to gas exchange process, Volumetric efficiency, Loss due to rubbing friction, Actual and fuel – Air cycles
of CI engines.
U n i t - 2
i.C enGineS
Classification – Working principles, Valve and port timing diagrams, Engine systems – Fuel, Carburetor, Fuel injection
system, Ignition, Cooling and lubrication, Principle of wankle engine, Principles of supercharging and turbocharging.
U n i t - 3
COMBUStiOn in S.i enGineS
Normal combustion and abnormal combustion – Importance of flame speed and effect of engine variables – Type
of abnormal combustion, Pre-ignition and knocking (Explanation of) – Fuel requirements and fuel rating, Anti knock
additives – Combustion chamber – Requirements, Types.
COMBUStiOn in C.i enGineS
Four stages of combustion – Delay period and its importance – Effect of engine variables – Diesel knock – Need for
air movement, Suction, Compression and combustion induced turbulence – Open and divided combustion chambers
and nozzles used – Fuel requirements and fuel rating.
U n i t - 4
MeASUreMent, teStinG And PerFOrMAnCe
Parameters of performance – Measurement of cylinder pressure, Fuel consumption, Air intake, Exhaust gas
composition, Brake power – Determination of frictional losses and indicated power – Performance test – Heat
balance sheet and chart.
U n i t - 5
GAS tUrBineS
Simple gas turbine plant – Ideal cycle, Essential components – Parameters of performance – Actual
cycle – Regeneration, Inter cooling and reheating – Closed type gas turbines.
Jet PrOPUlSiOn
Principle of operation – Classification of jet propulsive engines – Working principles with schematic
diagrams and representation on T-s diagram - Thrust, Thrust power and propulsion efficiency – Turbo jet
engines – Needs and demands met by turbo jet – Sehematic diagram, Thermodynamic cycle, Performance
evaluation, (Definitions and simple problems)
rOCketS
Application – Working principle – Classification – Propellant type – Thrust, Propulsive efficiency – Specific
impulse – Solid and liquid propellant rocket engines (only theoretical concepts).