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Optimization of Turbojet Performance

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The fuel air ratio decreases with increasing Mach number and compressor pressure ratio. Propulsive efficiency increases with increasing Mach number. ... – PowerPoint PPT presentation

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Title: Optimization of Turbojet Performance


1
Optimization of Turbojet Performance
  • P M V Subbarao
  • Professor
  • Mechanical Engineering Department

Better Deal for Compactness ..
2
Optimal conditions for Compact Turbojet w/o AB
3
Optimal conditions for Compact Turbojet w AB
4
Optimum Compressor Pressure Ratio Vs Mach Number
W AB
r0p,opt
W/o AB
Mac
5
Optimal Turbojet Engine Performance
With After Burner
Specific Thrust kN.s/kg
TSFC kg/ kN.hr
Without After Burner
Mac
6
Energy Flow in Jet Engine
Energy input
Long distance travel demands high flight
velocity. High flight velocity leads to drop in
compactness and fuel economy. A Single Jet is
blackmailing the jet engine !!!
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