A Combined Heat & Power Plant has a net The pressure ratio of the gas-turbine cycle is 14,) Air enters the compressor at 540 R)and the turbine at 250ORRP The combustion gases leaving the gas turbine are used to heat the steam at 1000 psia to 800°F in a heat exchanger. The combustion gases leave the heat exchanger at 840 R. An open feedwater heater incorporated with the steamcycle operates at a pressure of 60 psia. The condenser pressure is 2 psia. Assuming adiabatic efficiencies of 100 percent for the pump, 82 percent for the compressor, and(86 )percent for the gas and steam turbines. Determine, ver gutput of 350 MW.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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A Combined Heat & Power Plant has a net power gutput of 350 MW.
The pressure ratjo of the gas-turbine cycle is 14.) Air enters the
compressor at 540 R)and the turbine at 250ORRP The combustion gases
leaving the gas turbine are used to heat the steam at 1000 psia to 800°F
in a heat exchanger, The combustion gases leave the heat exchanger at
840 R. An open feedwater heater incorporated with the steam-cycle
operates at a pressure of 60 psia. The condenser pressure is 2 psia.
Assuming adiabatic efficiencies of 100 percent for the pump.(82 percent
for the compressor, and(86 )percent for the gas and steam turbines.
Determine,
a) The mass flow rate ratio of air to steam,
b) The required rate of heat input in the combustion chamber, and
c) The thermal efficiency of the combined cycle.
Transcribed Image Text:A Combined Heat & Power Plant has a net power gutput of 350 MW. The pressure ratjo of the gas-turbine cycle is 14.) Air enters the compressor at 540 R)and the turbine at 250ORRP The combustion gases leaving the gas turbine are used to heat the steam at 1000 psia to 800°F in a heat exchanger, The combustion gases leave the heat exchanger at 840 R. An open feedwater heater incorporated with the steam-cycle operates at a pressure of 60 psia. The condenser pressure is 2 psia. Assuming adiabatic efficiencies of 100 percent for the pump.(82 percent for the compressor, and(86 )percent for the gas and steam turbines. Determine, a) The mass flow rate ratio of air to steam, b) The required rate of heat input in the combustion chamber, and c) The thermal efficiency of the combined cycle.
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