P1 10 Boiler 12 P13 8200 Closed FWHI PIV 14 8 16 T13 350 13 Closed FWH II PIII High-P Turbine P14 5200 T[C] PII Open FWH 17 18 P15 3000 Low-P Turbine m Condenser PI рекрај Reversible processes. • There is no pressure drop in the boiler and pipes. The turbines are adiabatic (adiabatic + reversal = isentropic.) • The inlet temperatures to the turbines are the same. At the entrance to each pump, the water is in a state of saturated liquid. - In closed heat exchangers, the cooling water is at the saturation temperature of the discharge water 11 P16 290 P18 110

Refrigeration and Air Conditioning Technology (MindTap Course List)
8th Edition
ISBN:9781305578296
Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Chapter45: Domestic Refrigerators And Freezers
Section: Chapter Questions
Problem 20RQ: Welded ______sealed compressors are normally used in household refrigerators.
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P1
10
Boiler
12
10
P13
8200
Closed
FWHI
PIV
14
8
16
T13
350
13
Closed
FWH II
PIII
High-P
Turbine
Open
FWH
PII
10H
P14
5200
+[C]
17
Low-P
Turbine
18 m
P15
3000
PI
р[кра]
Reversible processes.
• There is no pressure drop in the boiler and pipes.
• The turbines are adiabatic (adiabatic + reversal =
isentropic.)
• The inlet temperatures to the turbines are the
same.
• At the entrance to each pump, the water is in a
state of saturated liquid.
• In closed heat exchangers, the cooling water is at
the saturation temperature of the discharge water
19
11
Condenser
P16
290
P18
110
Transcribed Image Text:P1 10 Boiler 12 10 P13 8200 Closed FWHI PIV 14 8 16 T13 350 13 Closed FWH II PIII High-P Turbine Open FWH PII 10H P14 5200 +[C] 17 Low-P Turbine 18 m P15 3000 PI р[кра] Reversible processes. • There is no pressure drop in the boiler and pipes. • The turbines are adiabatic (adiabatic + reversal = isentropic.) • The inlet temperatures to the turbines are the same. • At the entrance to each pump, the water is in a state of saturated liquid. • In closed heat exchangers, the cooling water is at the saturation temperature of the discharge water 19 11 Condenser P16 290 P18 110
Plot the cycle points on a T-s diagram
F. Calculate the efficiency of the system.
G. If it is known that the required turbine power is 80MW, what will be the mass flow entering the
boiler
Transcribed Image Text:Plot the cycle points on a T-s diagram F. Calculate the efficiency of the system. G. If it is known that the required turbine power is 80MW, what will be the mass flow entering the boiler
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