Task 1 : Investigate the principles of operation of the used part of the gas turbine plant (Brayton Cycle). Task 2: Calculate the produced power of the used gas turbine system then assess its efficiency. Task 3: If the compressor and turbine isentropic efficiencies are 88% and 75 %, respectively, compare and evaluate the actual plant and theoretical efficiencies in the used single shaft gas turbine system

A steam powerplant currently operates between a boiler pressure, 110 bar, and a condenser pressure, 0.045. Calculate the cycle efficiency, the work ratio and the specific steam consumption for a ranking cycle with dry saturated at the entry of the turbine. (Ranking cycle, Not superheated and T3 = 250 degrees Celsius)

10. Discuss the principal irreversibilities for a reheat Rankine power plant. Please select all answers that apply: a) Irreversibilities are associated with each of the subsystems in a vapor power plant. b) Irreversibilities associated with the Rankine cycle are internal and include the expansion of steam through the turbine and the effects of friction in flow through the pump, boiler, and condenser. c) Pump and turbine efficiencies account for the irreversibilities in the pump and turbine the same way. d) Pump and turbine efficiencies account for the irreversibilities in the pump and turbine in a different way. e) Turbine irreversibilities are due to steam expansion quality.

GIVEN: 1. Water in Rankin cycle. 2. Steam leaves steam generator at 1500 lbf/in^2 and 1095F. 3. Because of heat transfer and friction, pressure and temperature at turbine inlet are reduced to 1400 lbf/in^2 and 1000F. 4. Pump and turbine have 90% of isentropic efficiencies. 5. Pressure at inlet of condenser = 2 lbf/in^2. Due to friction, condesate exists condenser at 1.5 lbf/in^2 and 105F. 6. Condensate is pumped to 1600 lbf/in^2 & then enter steam generator. 7. Net power output of whole cycle = 1 x 10^9 Btu/hour. 8. The cooling water temperature increases from 60F to 76F with very little pressure drop as it flows through condenser. DETERMINE: 1. Mass flow rate of steam in lb/s. 2. rate of heat transfer in Btu/s to the working fluid passing through the steam generator. 3. thermal efficiency. 4. Mass flow rate of cooling water in lb/s