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A combined gas turbine–vapor power plant operates as in Fig. Steady-state data at principal states of the combined cycle are given in the table below. An air-standard analysis is assumed for the gas turbine in which the air passing through the combustor receives energy by heat transfer at a rate of 50 MW. Except for the combustor, all components operate adiabatically. Kinetic and potential energy effects are negligible. Determine (a) the mass flow rates of the air, steam, and cooling water, each in kg/s, (b) the net power developed by the gas turbine cycle and the vapor cycle, respectively, each in MW, (c) the thermal efficiency of the combined cycle

A combined gas turbine–vapor power plant operates as in Fig. Steady-state data at principal states of the combined cycle are given in the table below. An air-standard analysis is assumed for the gas turbine in which the air passing through the combustor receives energy by heat transfer at a rate of 50 MW. Except for the combustor, all components operate adiabatically. Kinetic and potential energy effects are negligible. Determine (a) the mass flow rates of the air, steam, and cooling water, each in kg/s, (b) the net power developed by the gas turbine cycle and the vapor cycle, respectively, each in MW, (c) the thermal efficiency of the combined cycle

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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- A combined gas turbine–vapor power plant operates as in Fig. Steady-state data at principal states of

the combined cycle are given in the table below. An air-standard analysis is assumed for the gas turbine

in which the air passing through the combustor receives energy by heat transfer at a rate of 50 MW.

Except for the combustor, all components operate adiabatically. Kinetic and potential energy effects are

negligible. Determine (a) the mass flow rates of the air, steam, and cooling water, each in kg/s, (b) the

net power developed by the gas turbine cycle and the vapor cycle, respectively, each in MW, (c) the

thermal efficiency of the combined cycle. 

T3 = 1580 K +3 P=13 bar T= 690 K Combustor P2=13.6 bar 2 - State P (bar) T("C) h (kJ/kg) 1 2 3 25 298.2 691.4 1663.9 923.2 475.3 204.5 1 14 Gas turbine 14 1250 Compressor Turbine 4 5 1 1 200 147 MW 6 T = 300 K 125 125 0.1 0.1 tiP =1 bar 7 8. 500 3341.8 2175.6 191.8 Air inlet +4 T,-900 K P4-1 bar 10 20 84.0 Exhaust 11 35 146.7 T= 400 K Ps-I bar T- 520°C P = 100 bar Heat exchanger Turbine +6 P6 =PT Steam cycle Wap n = 85% Pump Condenser ė 1,- 80% Py =Ps-0.08 bar
Transcribed Image Text:T3 = 1580 K +3 P=13 bar T= 690 K Combustor P2=13.6 bar 2 - State P (bar) T("C) h (kJ/kg) 1 2 3 25 298.2 691.4 1663.9 923.2 475.3 204.5 1 14 Gas turbine 14 1250 Compressor Turbine 4 5 1 1 200 147 MW 6 T = 300 K 125 125 0.1 0.1 tiP =1 bar 7 8. 500 3341.8 2175.6 191.8 Air inlet +4 T,-900 K P4-1 bar 10 20 84.0 Exhaust 11 35 146.7 T= 400 K Ps-I bar T- 520°C P = 100 bar Heat exchanger Turbine +6 P6 =PT Steam cycle Wap n = 85% Pump Condenser ė 1,- 80% Py =Ps-0.08 bar
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