تم الحل ✓
categoryهندسة ميكانيكية
schoolبكالوريوس
event_available2026-07-13
السؤال
Transcribed Image Text:
3. The figure below shows a simple vapor power plant operating at steady state with water as the
working fluid. Data at key locations are given on the figure. The mass flow rate of the water circulating
through the components is 109 kg/s. Lost heat transfer and kinetic and potential energy effects can be
ignored. Assuming a source temperature of 2400 K and a sink temperature of 300 K,
(a) Show the process on P-v and T-s diagrams.
(b) Determine the net power developed.
(e) Determine the thermal efficiency.
(d) The second-law efficiency of the refrigerator.
(e) Determine the isentropic turbine efficiency.
(f) Determine the isentropic pump efficiency.
(g) Determine the mass flow rate of the cooling water.
(h) Determine the irreversibility of each process and the total irreversibility.
P₁-100 bar
T₁-520°C
Turbine
Power out
Steam
P₂-0.08 bar
%-90%
generator
Cooling
water in at 20°C
Condenser
P₁ = 100 bar
T-43°C
Pump
Power
3 P=0.08 bar
Saturated liquid
in
Cooling
water out at 35°C
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