In a power plant operating on a Rankine cycle, steam enters the turbine at 500 lbf/in2 and 800F and expands to 2 lbf/in2 and a quality of 92%. Heat transfer from the turbine to the surroundings occurs at a rate of 50 Btu/lbm of steam flowing. All other aspects of the operation follow the ideal cycle. You must draw a schematic for this problem. Determine:
The net work developed per unit mass of steam flow, in Btu/lbm
The thermal efficiency
The rate of exergy destruction per unit mass of steam flow, in Btu/lbm, for a control volume enclosing the turbine and a portion of its immediate surround so heat transfer occurs at T0 = 60F. In other words, use T0 as both your low cycle temp and your heat sink temp.