Question

thermodynamics

A jet engine is being tested on a test stand. The inlet area to the compressor is 0.2 m² and air enters the compressor at 90 kPa, 100 m/s. The pressure of the atmosphere is 100 kPa. The exit area of the engine is 0.1 m², and the products of combustion leave the exit at a pressure of 130 kPa and a temperature of 1000 K. The air fuel ratio is 42 kg air/kg fuel , and the fuel enters with a low velocity. The mass flow rate of air entering the engine is 20 kg/s

Determine the inlet temperature.

Determine the exit velocity of combustion products.

Determine the thrust on the engine.

Answer 1