Overview:
• In Teams of typically five students, students are required to perform a mass, energy and
exergy analysis of the following power generation or cycle, analytically, and using
engineering equation solver (EES) (optional and subject to software availability).
Consider as starting point the actual reheat-regenerative Rankine cycle illustrated in Figure
1, with the following base-case operating conditions:
P5 = 6 MPa, P7 = 1 MPa, P1 = 20 kPa. T5 = 450°C, T7 = 400°C, T9 = Tsat @ P6, X1 = X3
= 0, $\eta_{pump,is}$ = 80%, $\eta_{turb,is}$ = 85%.
Perform the following analyses:
• Base-case cycle performance analysis:
? State all problem solving assumptions
? Draw the cycle T-s diagram, including all state points with known data, and after
problem solving, calculated data (i.e., property values (P, T))
? Perform the cycle energy analysis, and tabulate all results, determining:
? At cycle level: the fraction of steam (y) extracted from the high-pressure turbine,
the cycle energy total consumption, the cycle total gross and net energy input,
the cycle gross and net power output, the cycle first-law efficiency
? At unit level: the energy consumption of each unit, the power output of each
cycle unit, the heat duty of each unit.
? Perform the cycle exergy analysis, and tabulate all results, determining:
? At cycle level: the cycle total exergy input, total exergy output, total exergy
dstruction, second-law efficiency and exergy efficiency
? At unit level: the exergy input, exergy output, exergy destruction, and second
law and exergy efficiency of each unit
