5. During the flight, the air speed of a turbojet engine is 250 m/s. The ambient air temperature is - 14°C. The exhaust gas temperature at the outlet of the nozzle is 610°C. Corresponding enthalpy values for air and exhaust gas are respectively 250 kJ/kg and 900 kJ/kg. The fuel-air ratio is 0.0180. The chemical energy of the fuel is 45 MJ/kg. Heat loss from the engine is 21 kJ/kg of air. Calculate the velocity of the exhaust gas in m/s from the jet. Fuel Air Exhaust Gas
5. During the flight, the air speed of a turbojet engine is 250 m/s. The ambient air temperature is - 14°C. The exhaust gas temperature at the outlet of the nozzle is 610°C. Corresponding enthalpy values for air and exhaust gas are respectively 250 kJ/kg and 900 kJ/kg. The fuel-air ratio is 0.0180. The chemical energy of the fuel is 45 MJ/kg. Heat loss from the engine is 21 kJ/kg of air. Calculate the velocity of the exhaust gas in m/s from the jet. Fuel Air Exhaust Gas
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Please note that here it is not mentioned that 6percent chemical energy is wasted as in book so don’t copy at all from book answers and from other sources
Transcribed Image Text:5. During the flight, the air speed of a turbojet engine is 250 m/s. The ambient air temperature is
- 14°C. The exhaust gas temperature at the outlet of the nozzle is 610°C. Corresponding enthalpy
values for air and exhaust gas are respectively 250 kJ/kg and 900 kJ/kg. The fuel-air ratio is 0.0180.
The chemical energy of the fuel is 45 MJ/kg. Heat loss from the engine is 21 kJ/kg of air. Calculate
the velocity of the exhaust gas in m/s from the jet.
Fuel
Air
Exhaust
Gas
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