solve this problem of a Brayton cycle in a gas turbine power plant. Properties of air should be for when it is at 300K; cv=0.718,

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solve this problem of a Brayton cycle in a gas turbine power plant. Properties of air should be for when it is at 300K; cv=0.718, cp=1.005, k=1.4

This modified brayton cycle consists of;

(1) ?> compressor ?> (2) ?> combustion chamber ?> (3) ?> highpressure turbine ?> (4) ?> lowpressure turbine ?> (5)

At state 1, T = 0*C and P=100kPa

Max cylcle temp is 1500K

Isentropic effic. of comp and turbine is 80%

No reheating between high and low pressure turbines

1. Draw a T-s diagram for the modified cycle labeling the states accordingly. Add a sketch in the same diagram for the when the isen. effic. is 100%.

2. Find the temp/press at all 5 states

3. calc mass flow rate (kg/s) of air into comp. for net output power of 200MW

4. calc second low effic of lowpress turb

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Cnciabr Compl 3 HP - Turb LP Turb 4. S