Question

A jet engine propels an aircraft at 289 m/s through air at 54 kPa and 267 K.


A jet engine propels an aircraft at 289 m/s through air at 54 kPa and 267 K. The compressor pressure ratio is 9 and the temperature at the turbine inlet is 885 K. 

b) Taking the pressure in the combustion chamber as 843.5 kPa and the temperature at the turbine exit to be 518 K, determine the velocity of the exhaust gases. 

Give your answer in m/s to 2 decimal places 

Assume ideal operation for all components and constant specific heats at room temperature. Take the properties of air at room temperature to be R=0.287 kPa m3/kg

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