Heat recovery steam generator joint between gas and steam turbine in combined cycle power plant. Air enters the compressor at 300 K and compressor pressure ratio is 11, turbine inlet temperature is1100 K. The combustion gases leaving the gas turbine are used to heat the steam at 5 MPa to 350°C in a heat recovery steam generator (HRSG). The combustion gases leave the HRSG at 420 K. An open feedwater heater incorporated with the steam cycle operates at a pressure of 0.8 MPa. The condenser pressure is 10 kPa. Assuming isentropic efficiencies of 100 percent for the pump, 82 percent for the compressor, and 86 percent for the gas and steam turbines, the combined gas-steam power plant that has a net power output of 280 MW 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.

Heat recovery steam generator joint between gas and steam turbine in combined cycle power plant. Air enters the compressor at 300 K and compressor pressure ratio is 11, turbine inlet temperature is1100 K. The combustion gases leaving the gas turbine are used to heat the steam at 5 MPa to 350°C in a heat recovery steam generator (HRSG). The combustion gases leave the HRSG at 420 K. An open feedwater heater incorporated with the steam cycle operates at a pressure of 0.8 MPa. The condenser pressure is 10 kPa. Assuming isentropic efficiencies of 100 percent for the pump, 82 percent for the compressor, and 86 percent for the gas and steam turbines, the combined gas-steam power plant that has a net power output of 280 MW 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.

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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