Question:medium

The compressor of a gas turbine plant, operating on an ideal intercooled Brayton cycle, accomplishes an overall pressure ratio of 6 in a two-stage compression process. Intercooling is used to cool the air coming out from the first stage to the inlet temperature of the first stage, before its entry to the second stage. Air enters the compressor at 300 K and 100 kPa. If the properties of gas are constant, the intercooling pressure for minimum compressor work is _______

Show Hint

Whenever perfect intercooling is specified, the stage pressure ratios are equal:
$\frac{P_i}{P_1} = \frac{P_2}{P_i} \implies P_i = \sqrt{P_1 P_2}$. This is a classic result that is highly tested.
Updated On: Jul 9, 2026
  • 321.15 kPa
  • 479.16 kPa
  • 244.95 kPa
  • 195.35 kPa
Show Solution

The Correct Option is C

Solution and Explanation

Was this answer helpful?
0

Top Questions on Thermodynamics