- In Combined Power Plant The Gas Turbine Cycle Has Two Stages Of Compression With An Intercooler Between The Stages Ai 1 (116.7 KiB) Viewed 15 times
In Combined power plant, the gas-turbine cycle has two stages of compression, with an intercooler between the stages. Air enters the first stage at 102 kPa, 27 "C. The pressure ratio across each compressor stage is 4.7, and each stage has an isentropic efficiency of 82%. Air exits the intercooler at 70 °C. The maximum cycle temperature is 1400 °C, and the gas cycle has a single-turbine stage with an isentropic efficiency of 84%. The exhaust is rejected at 300°C. While the steam power plant operates on the reheat-regenerative Rankine cycle with a closed feed-water heater. A 20 kg/s of steam enters the high-pressure turbine. Assuming that the isentropic efficiency of 85 percent for the pumps. Hints hu=hx Find the specific works, specific input and ejected heat, the thermal efficiency of combined power plant and the air mass flow rate 8 state 9 10 11 12 13 14 15 16 17 18 8 2 2 0.8 0.015 P т MPa °C 550 500 12 7 Boiler High-P turbinc Low-P turbine 13 14 16 l-y 11 Mixing Closed FWH chamber 15 Y 9 17 Condenser 18 10 PII PI 3 8 1 Cooe 6 5 Comer1 Cartres 2 lurre