UNIT I PRINCIPLES OF AIR BREATHING ENGINES
Operating principles of piston engines, thermal efficiency calculations
illustration of working of gas turbine engines, factors affecting thrust
JET ENGINE INTAKES AND EXHAUST NOZZLES
UNIT II
Ram effect, Internal flow and Stall in subsonic inlets relation between minimum area ratio
starting problem on supersonic inlets-shock swallowing by area variation real flow through nozzles and nozzle efficiency
losses in nozzles ejector and variable area nozzles interaction of nozzle flow with adjacent surfaces-(thrust reversal. 2mark or 8 mark)
UNIT III JET ENGINE COMBUSTION CHAMBERS
Combustion equations, Combustion process, classification of combustion chambers
effect of operating ing variables on performance
, Aircraft fuels, HHV, LHV, Orsat apparatus****
UNIT IV JET ENGINE COMPRESSORS
Euler's turbo machinery equation***, Principle operation of centrifugal compressor***
free vortex and constant reaction designs of axial flow compressor***
performance parameters axial flow compressons(stage efficiency 7 or 2 marks)
UNIT V JET ENGINE TURBINES
Work done and pressure rise Velocity diagrams degree of reaction constant nozzle angle designs -
performance parameters of axial flow turbine turbine blade cooling methods stage efficiency calculations
basic blade profile design considerations matching of compressor and turbine**