A gas turbine has the following specifications, Table 1, at the ISO conditions. Two turbines were used to drive a steam turbine. Its specifications are given in Table 2: Table 1 Item Inlet pressure to the compressor Pressure ratio Inlet temperature to the turbine Compressor isentropic efficiency Turbine isentropic efficiency Combustion chamber losses Pressure loss in intercooler Pressure loss in regenerator Effectiveness of intercooler Effectiveness of regenerator Fuel Composition LHV of fuel Fuel Density kg/m Air to Fuel Ratio Combustion efficiency Pressure of the gases at turbine exit Turbine rated power Value 98 kPa 18 1675 K 91% 93% 4% Pump isentropic efficiency Turbine isentropic efficiency Heat loss in the HRSG Turbine Rated Power 1% 2% 0.82 0.84 70% CH4 + 10% C3H8+ 10% C2H6+10% CH4 37 MJ/kg 0.79 23 95% 104 kPa 135 MW Table 2 Parameters Condition Conditions of steam at turbine inlet 6 MPa, 425C Condenser Pressure 24 kPa 0.91 0.93 3% 95 MW Cases: 1. 2 GT | Simple cycle. 2. 2 GT | 2 intercoolers, 1 Reheater, Regenerator. 3. Combined (2 GT + 1 ST) | 1 OFWH. Calculate: Cases Parameter Cycle Thermal Efficiency % Heat Rate of the cycle kJ/kWh Exhaust Gas Temperature at exit from HRSG Power of one Block MW % Power of steam turbine in the Block (Fuel/Air) By mass kg cooling water/kg steam kg cooling air/kg steam If we have the same amount of flow rate of cooling water what will be the temperature difference between cooling air and condenser. % of energy recovered Equivalence ratio Mass of the exhaust gasses (kg/h) Fuel consumption per hour (kg) Air consumption per hour (kg) Mass of steam to gases % Specific fuel consumption (kg/kWh) CO emissions % Excess air BWR Temp rise due to OFWH % of N in the GT exhaust gases % of O in the GT exhaust gases Products dew point temperature %power of gas turbines in the block 1 0% 2 0% %Change relative to 1 3 %Change relative to 1 The mass of steam you can generate if you can recover all exhaust all the exhaust gas energy (kg/s) The inlet pressure to the gas turbine (kPa) Difference between PR and ER Fuel saved because of using HRSG m/s Mass flow rate of the combustion air m/h Extracted mass (%)