Question

A gas turbine utilize the two stage centrifugal compressor. Pressure ratio for the first

and second stages are 2.5 and 2.1 respectively. The flow of air is 10Kg/s, this air being

drawn at 1.013 bar and 20o

. If the temperature drop in the intercooler is 60o

and the

isentropic efficiency is 90% for each stage, calculate:

 The actual temperature at end of each stage

 The total compressor power

Assume =1.4 and Cp= 1.005 kJ/kg K for air.​

Answer 1

Answer:

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