A combined cycle consists of gas turbine cycle and Rankine cycle. In gas turbine cycle, the minimum temperature is 30°C,

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A Combined Cycle Consists Of Gas Turbine Cycle And Rankine Cycle In Gas Turbine Cycle The Minimum Temperature Is 30 C 1 (398.42 KiB) Viewed 10 times

A combined cycle consists of gas turbine cycle and Rankine cycle. In gas turbine cycle, the minimum temperature is 30°C, the pressure ratio is 6.5, and the maximum temperature is 1227°C. The efficiencies of compressors and turbines are, respectively, 85% and 90%. The mass flow rates of fuel and air are, respectively, 10 kg/s and 550 kg/s. In Rankine cycle, the maximum steam pressure is 10 MPa, the maximum steam temperature is 800 K, the condenser pressure is 10 kPa, and the mass flow rate of steam is 50 kg/s. Steam turbine efficiency is 85%, and pump efficiency is 70%. Find the net power output of the combined cycle and the temperature of flue gas at the outlet of HRSG. Note: Air properties are temperature-dependent. Flue gas and air properties are assumed to be the same.