7.) A Rankine cycle is used for a steam power plant. Liquid first enters the turbine at 2.25 MPa and 300C then exits at 0.025 MPa. The pump receives saturated liquid from the condenser before sending it to the boiler at the original pressure. a.) Draw the T-S diagram. b.) Find the dryness at turbine exit, c.) Wp, d.) Qa, e.) Qr, f.) Wt, g.) Wnet (kJ/kg), h.) Efficiency (%), and i.) Steam rate (kg/kWh) • 100%, 3.12 kJ/kg, 3016.3 kJ/kg, 2346.3 kJ/kg, 522.3 kJ/kg, 35.22%, 4.63 kg/kWh • 95.21%, 2.27 kJ/kg, 2809.6 kJ/kg, 1875.21 kJ/kg, 815.33 kJ/kg, 31.29%, 3.51 kg/kWh • 83.73%, 2.27 kJ/kg, 2742.1 kJ/kg, 1964.48 kJ/kg, 779.89 kJ/kg, 28.36%, 4.63 kg/kWh • 100%, 0 kJ/kg, 3016.3 kJ/kg, 271.93 kJ/kg, 2798 kJ/kg, 100%, 1 kg/kWh

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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Use the steam table provided and DO NOT round the values from steam tables. Write down the values taken down from the steam table.
Specific Volume
Enthalpy
Internal Energy
Sat
Liguid
Entropy
Sal
Sat.
Vapur
Sat.
Press
MP
Te
Liquid
Vaper
Set
Liqurd
Sat.
Set,
LSquid
Sal.
Vapor
Evap.
Esap.
Evap.
10,
10,
h,
708.64 1866.1 2574.7
252.4 711.00 1864 2 2575.2
713.34 1862.2 2575.6
715.66 1860.3 2576.0
717.95 1858.5 2576.4
709.47 2057.0 2766 4
711.85 2055.2 2767.0 2.0253 4.6549 6.6802
714.20 2053.4 2767.5
716.52 2051.6 2768.1 2.0359 4.6355 6.6714
718.83 2049.8 2768.6
167.78
255.6
2.0200 4.6647 6.6847
15
76 168.32 LI121
.77
78
79
168.86 1.1128
169 39
169.91 1J142 243.3
249.3
1.1135 246.3
2.0306 4.645I 6.6758
2.0411 4.6260 6.6670
.80
.81
82
83
.84
170.43 1.1148
170.95 11155
171.46 1.1161
171.97 1.1168
172.47 1.1174
240,4
237.6
234.9
232.2
229.5
720.22 1856.6 2576.8
722.47 1854.7 2577.2
724.70 1852.9 2577.6
726.91 1851,I 2578.0
729.10 1849.2 2578.3
721.11 2048.0 2769.1 2.0462 4.6166 6.6628
723,38 2046.3 27697 2,0513 4.6073 6.6585
725.62 2044.5 2770.2 2.0563 4.5981 6.6544
727.83 2042.8 2770.7 2.0612 4.5890 6.6502
730.04 2041.I 2771.2 2.0662 4.5800 6.6462
.85
.86
87
.38
89
173.94
174.43
174.90
172.96 1.1181 227.0
173.46 1.1187
L.1193
1.1200
1.1206
224.5
222.0
219.6
217.3
731.27 1847.4 2578.7
733.42 1845.7 2579.1
735.55 1843.9 2579.4
737.66 1842.1 2579.8
739.75 1840.4 2580.1
732.22 2039.4 2771.6 2.0710 4.5711 6.6421
734.38 2037.7 2772.1 2.0758 4.5623 6.6381
736.52 2036.I 2772.6 2.0806 4.5536 6.6342
738.64 2034.4 2773.0
740.75 2032.8 2773.5
2.0853 4.5450 6.6303
2.0900 4,5364 6,6264
Transcribed Image Text:Specific Volume Enthalpy Internal Energy Sat Liguid Entropy Sal Sat. Vapur Sat. Press MP Te Liquid Vaper Set Liqurd Sat. Set, LSquid Sal. Vapor Evap. Esap. Evap. 10, 10, h, 708.64 1866.1 2574.7 252.4 711.00 1864 2 2575.2 713.34 1862.2 2575.6 715.66 1860.3 2576.0 717.95 1858.5 2576.4 709.47 2057.0 2766 4 711.85 2055.2 2767.0 2.0253 4.6549 6.6802 714.20 2053.4 2767.5 716.52 2051.6 2768.1 2.0359 4.6355 6.6714 718.83 2049.8 2768.6 167.78 255.6 2.0200 4.6647 6.6847 15 76 168.32 LI121 .77 78 79 168.86 1.1128 169 39 169.91 1J142 243.3 249.3 1.1135 246.3 2.0306 4.645I 6.6758 2.0411 4.6260 6.6670 .80 .81 82 83 .84 170.43 1.1148 170.95 11155 171.46 1.1161 171.97 1.1168 172.47 1.1174 240,4 237.6 234.9 232.2 229.5 720.22 1856.6 2576.8 722.47 1854.7 2577.2 724.70 1852.9 2577.6 726.91 1851,I 2578.0 729.10 1849.2 2578.3 721.11 2048.0 2769.1 2.0462 4.6166 6.6628 723,38 2046.3 27697 2,0513 4.6073 6.6585 725.62 2044.5 2770.2 2.0563 4.5981 6.6544 727.83 2042.8 2770.7 2.0612 4.5890 6.6502 730.04 2041.I 2771.2 2.0662 4.5800 6.6462 .85 .86 87 .38 89 173.94 174.43 174.90 172.96 1.1181 227.0 173.46 1.1187 L.1193 1.1200 1.1206 224.5 222.0 219.6 217.3 731.27 1847.4 2578.7 733.42 1845.7 2579.1 735.55 1843.9 2579.4 737.66 1842.1 2579.8 739.75 1840.4 2580.1 732.22 2039.4 2771.6 2.0710 4.5711 6.6421 734.38 2037.7 2772.1 2.0758 4.5623 6.6381 736.52 2036.I 2772.6 2.0806 4.5536 6.6342 738.64 2034.4 2773.0 740.75 2032.8 2773.5 2.0853 4.5450 6.6303 2.0900 4,5364 6,6264
7.) A Rankine cycle is used for a steam power plant. Liquid first enters the
turbine at 2.25 MPa and 300C then exits at 0.025 MPa. The pump receives
saturated liquid from the condenser before sending it to the boiler at the
original pressure. a.) Draw the T-S diagram. b.) Find the dryness at turbine
exit, c.) Wp, d.) Qa, e.) Qr, f.) Wt, g.) Wnet (kJ/kg), h.) Efficiency (%), and i.)
Steam rate (kg/kWh)
• 100%, 3.12 kJ/kg, 3016.3 kJ/kg, 2346.3 kJ/kg, 522.3 kJ/kg, 35.22%,
4.63 kg/kWh
• 95.21%, 2.27 kJ/kg, 2809.6 kJ/kg, 1875.21 kJ/kg, 815.33 kJ/kg,
31.29%, 3.51 kg/kWh
• 83.73%, 2.27 kJ/kg, 2742.1 kJ/kg, 1964.48 kJ/kg, 779.89 kJ/kg,
28.36%, 4.63 kg/kWh
• 100%, 0 kJ/kg, 3016.3 kJ/kg, 271.93 kJ/kg, 2798 kJ/kg, 100%, 1
kg/kWh
Transcribed Image Text:7.) A Rankine cycle is used for a steam power plant. Liquid first enters the turbine at 2.25 MPa and 300C then exits at 0.025 MPa. The pump receives saturated liquid from the condenser before sending it to the boiler at the original pressure. a.) Draw the T-S diagram. b.) Find the dryness at turbine exit, c.) Wp, d.) Qa, e.) Qr, f.) Wt, g.) Wnet (kJ/kg), h.) Efficiency (%), and i.) Steam rate (kg/kWh) • 100%, 3.12 kJ/kg, 3016.3 kJ/kg, 2346.3 kJ/kg, 522.3 kJ/kg, 35.22%, 4.63 kg/kWh • 95.21%, 2.27 kJ/kg, 2809.6 kJ/kg, 1875.21 kJ/kg, 815.33 kJ/kg, 31.29%, 3.51 kg/kWh • 83.73%, 2.27 kJ/kg, 2742.1 kJ/kg, 1964.48 kJ/kg, 779.89 kJ/kg, 28.36%, 4.63 kg/kWh • 100%, 0 kJ/kg, 3016.3 kJ/kg, 271.93 kJ/kg, 2798 kJ/kg, 100%, 1 kg/kWh
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