A gas-turbine power plant operates on the simpleBrayton cycle between the pressure limits of 100 and 800 kPa.Air enters the compressor at 30C and leaves at 330C at amass flow rate of 200 kg/s. The maximum cycle temperatureis 1400 K. During operation of the cycle, the net power outputis measured experimentally to be 60 MW. Assume constantproperties for air at 300 K with cv = 0.718 kJ/kg·K, cp =1.005 kJ/kg·K, R = 0.287 kJ/kg·K, k = l.4.(a) Sketch the T-s diagram for the cycle.(b) Determine the isentropic efficiency of the turbine forthese operating conditions.(c) Determine the cycle thermal efficiency.
A gas-turbine power plant operates on the simpleBrayton cycle between the pressure limits of 100 and 800 kPa.Air enters the compressor at 30C and leaves at 330C at amass flow rate of 200 kg/s. The maximum cycle temperatureis 1400 K. During operation of the cycle, the net power outputis measured experimentally to be 60 MW. Assume constantproperties for air at 300 K with cv = 0.718 kJ/kg·K, cp =1.005 kJ/kg·K, R = 0.287 kJ/kg·K, k = l.4.(a) Sketch the T-s diagram for the cycle.(b) Determine the isentropic efficiency of the turbine forthese operating conditions.(c) Determine the cycle thermal efficiency.
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11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
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A gas-turbine power plant operates on the simple
Brayton cycle between the pressure limits of 100 and 800 kPa.
Air enters the compressor at 30C and leaves at 330C at a
mass flow rate of 200 kg/s. The maximum cycle temperature
is 1400 K. During operation of the cycle, the net power output
is measured experimentally to be 60 MW. Assume constant
properties for air at 300 K with cv = 0.718 kJ/kg·K, cp =
1.005 kJ/kg·K, R = 0.287 kJ/kg·K, k = l.4.
(a) Sketch the T-s diagram for the cycle.
(b) Determine the isentropic efficiency of the turbine for
these operating conditions.
(c) Determine the cycle thermal efficiency.
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