Speed of a turbojet engine is 250 m/s… solved problem




During flight, the air speed of a turbojet engine is 250 m/s. Ambient air temperature is – 14 °C. Gas temperature at outlet of nozzle is 610 °C. Corresponding enthalpy values for air and gas respectively 250 and 900 kJ/kg. Fuel air ratio is 0.0180. Chemical energy of fuel is 45 MJ/kg. Owing to incomplete combustion 6% of chemical energy is not released in the reaction. Heat loss from the engine is 21 kJ/kg of air. Calculate the velocity of the exhaust jet.





During flight, the air speed of a turbojet engine is 250 m/s. Ambient air temperature is – 14 °C. Gas temperature at outlet of nozzle is 610 °C. Corresponding enthalpy values for air and gas respectively 250 and 900 kJ/kg. Fuel air ratio is 0.0180. Chemical energy of fuel is 45 MJ/kg. Owing to incomplete combustion 6% of chemical energy is not released in the reaction. Heat loss from the engine is 21 kJ/kg of air.

Calculate the velocity of the exhaust jet.

Speed of a turbojet engine is 250 m/s... solved problem



Speed of a turbojet engine is 250 m/s... solved problem
Speed of a turbojet engine is 250 m/s… solved problem





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