3 A RB211 engine cruises at 10000 m (temperature = 223.3 K) gives the following information...
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3 A RB211 engine cruises at 10000 m (temperature = 223.3 K) gives the following information (LCV of fuel = 43 MJ/kg): Flight Mach number = 0.85, Exhaust gas velocity = 390 m/s, SFC=0.06 kg/h/N. (a) Calculate the propulsive efficiency of the engine. (b) Calculate the overall efficiency of the engine. (c) Calculate the thermal efficiency of the engine. 3 A RB211 engine cruises at 10000 m (temperature = 223.3 K) gives the following information (LCV of fuel = 43 MJ/kg): Flight Mach number = 0.85, Exhaust gas velocity = 390 m/s, SFC=0.06 kg/h/N. (a) Calculate the propulsive efficiency of the engine. (b) Calculate the overall efficiency of the engine. (c) Calculate the thermal efficiency of the engine.
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a Propulsion efficiency of the engine can be calculated using the equation Propulsion Ef... View the full answer
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