A reheat-regenerative rankine cycle needs to produce 150MW of net power. Boiler pressure is at 15MPa. Reheat occurs at 10MPa. extractions occur at 5MPa and 2MPa for open feedwater heaters. These extractions occur after the expansion after reheating. Steam leaves the boiler and reheater at 600C. Condenser pressure is at 10kPa. SOLVE FOR: a.) Determine the amount of steam needed passing through the boiler to produce the required net power (kg/s) b.) Determine the amount of heat added to the system (kJ/s) c.) Determine the thermal efficiency of this cycle (%)
A reheat-regenerative rankine cycle needs to produce 150MW of net power. Boiler pressure is at 15MPa. Reheat occurs at 10MPa. extractions occur at 5MPa and 2MPa for open feedwater heaters. These extractions occur after the expansion after reheating. Steam leaves the boiler and reheater at 600C. Condenser pressure is at 10kPa. SOLVE FOR: a.) Determine the amount of steam needed passing through the boiler to produce the required net power (kg/s) b.) Determine the amount of heat added to the system (kJ/s) c.) Determine the thermal efficiency of this cycle (%)
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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A reheat-regenerative rankine cycle needs to produce 150MW of net power. Boiler pressure is at 15MPa. Reheat occurs at 10MPa. extractions occur at 5MPa and 2MPa for open feedwater heaters. These extractions occur after the expansion after reheating. Steam leaves the boiler and reheater at 600C. Condenser pressure is at 10kPa.
SOLVE FOR:
a.) Determine the amount of steam needed passing through the boiler to produce the required net power (kg/s)
b.) Determine the amount of heat added to the system (kJ/s)
c.) Determine the thermal efficiency of this cycle (%)
PLS PLS USE THE ATTACHED IMAGE OF THE STEAM TABLE FOR THE VALUES FOR ENTHALPHYS
ANSWERS ROUND OFF TO SIG SIGNIFICANT FIGURES
Transcribed Image Text:TABLE 2: SATURATED WATER - PRESSURE TABLE
Specific Volume, m3/kg
Internal Energy, KJ/kg
Enthalpy, KJ/kg
Entropy, KJ/(kg-K)
Press.
Sat. Temp.
oc
Sat. Vapor Sat. Liquid
Sat. Vapor Sat. Liquid
Sat. Liquid Sat. Vapor Sat. Liquid
Evap.
Evap.
Evap.
Sat. Vapor
Кра
10
45.81
0.001010
14.67
191.82
2246.1
2437.9
191.83
2392.9
2584.7
0.6493
7.5009
8.1502
Specific Volume, m3/kg
Internal Energy, KJ/kg
Enthalpy, KJ/kg
Press.
Entropy, KJ/(kg-K)
Мра
Sat. Temp.
Sat. Liquid Sat. Vapor Sat. Liquid
Evap.
Sat. Vapor Sat. Liquid
Evap.
Sat. Vapor Sat. Liquid
Evap.
Sat. Vapor
Psat
t
oc
2.0
212.42
0.001177
0.09963
906.44
1693.9
2600.3
908.79
1890.7
2799.5
2.4474
3.8935
6.3409
5.0
263.99
0.001286
0.03944
1147.81
1449.3
2597.1
1154.23
1640.1
2794.3
2.9202
3.0532
5.9734
CamScanner
0000
Transcribed Image Text:TABLE 3-3: SUPERHEATED WATER
T
V
u
h
KJ/kg
P = 10.0 Mpa (311.06 OC)
OC
m3/kg
KJ/(kg-K)
m3/kg
KJ/kg
KJ/(kg-K)
KJ/kg
P = 15.0 Mpa (342.24 OC)
KJ/kg
Sat. Vap: 0.010337
2455.5
2610.5
5.3098
600
0.02491
3208.6
3582.3
6.6776
0.03837
3241.7
3625.3
6.9029
CamScanner
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