5.) A kilogram of wet steam is taken as a sample for study. It has a pressure of 0.805 MPa and an enthalpy of 2287 kJ/kg. What is the moisture percentage of the steam? 23.56%
5.) A kilogram of wet steam is taken as a sample for study. It has a pressure of 0.805 MPa and an enthalpy of 2287 kJ/kg. What is the moisture percentage of the steam? 23.56%
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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Question
Use the steam table provided and DO NOT round the values from steam tables. Write down the values taken down from the steam table.
![5.) A kilogram of wet steam is taken as a sample for study. It has a pressure
of 0.805 MPa and an enthalpy of 2287 kJ/kg. What is the moisture percentage
of the steam?
• 23.56%
• 76.50%
• 55.41%
• 89.49%
Internal Energy
Enthalpy
Entropy
Set,
Squid
Specific Volume
Sat
Liqund
Sat.
Te
Sa
Liquid
Sat
Liquid
Sat.
Vapur
Sat.
Vapt
Sal.
Tapor
Pres
MP
Evap.
Evap
Vapor
Evap.
10,
10,
h h
h,
709.47 2057.O 2766 4
711.85 2055.2 2767.0
714.20 2053,4 2767.5 2.0306 4.6451 6.6758
716.52 2051.6 2768.1
718.83 2049.8 2768.6
2.0200 4.6647 6.6847
2.0253 4.6549 6.6802
255.6
708.64 1866.1 2574.7
167,78
168.32 1.1121 252.4 711.00 1864.2 2575.2
15
76
77 168.86 LI128 249.3 713.34 1862.2 2575.6
.78
.79
169.39 1.1135 246.3 715.66 1860.3 2576.0
169.91 11142 243.3
2.0359 4.6355 6.6714
2.0411 4.6260 6.6670
717.95 1858.5 2576.4
720.22 1856.6 2576.8
722.47 1854.7 2577.2
721.11 2048.0 2769.1 2.0462 4.6166 6.6628
723,38 2046.3 2769.7 2,0513 4.6073 6.6585
80
.81
82
83
.84
170.43 1.1148 240,4
170.95 1.1155
171.46 1.1161
171.97 1.I168
172.47 1.1174
237.6
234.9 724.70 1 852.9 2577.6 725.62 2044.5 2770.2 2.0563 4.5981 6.6544
232.2 726.91 1851.1 2578.0
229.5
729.10 1849.2 2578 3
727.83 2042.8 2770.7 2.0612 4.5890 6.6502
730.04 2041I 2771.2 2.0662 4.5800 6.6462
227.0 731.27 1847.4 2578.7 732.22 2039.4 2771.6 2.0710 4.5711 6.6421
85 172.96L1181
.86
.87
173.46 1.1187 224.5 733.42 1845.7 2579.1 734.38 2037.7 2772.1 2.0758 4.5623 6.6381
173.94
174.43
174.90
1.1193
1.1200
1.1206
222.0
219.6
217.3
735.55 1843.9 2579.4
737.66 1842.1 2579.8
739.75 1840.4 2580.1
736.52 2036.I 2772.6 2.0806 4.5536 6.6342
738.64 2034.4 2773.0 2.0853 4.5450 6.6303
740.75 2032.8 2773.5 2.0900 4,5364 6,6264
.88
89
6.) Air undergoes Isothermal expansion in a Carnot cycle where the pressure
decreases from 2.5 MPa to 1.5 MPa. This process has a temperature of 550
K and it decreases to 400 K before the Isothermal compression stroke. Find
a.) Qa, b.) Qr, c.) Wnet (kJ/kg), d.) the efficiency (%), e.) draw the T-S diagram
with proper label of points, and f.) the pressures before and after Isothermal
compression
• 71.55 kJ/kg, 61.78 kJ/kg, 9.77 kJ/kg, 13.65%, 251.52 kPa and 502 kPa
• 80.66 kJ/kg, 58.66 kJ/kg, 22 kJ/kg, 27.27%, 492.08 kPa and 820.13 kPa
• 61.22 kJ/kg, 41.22 kJ/kg, 20 kJ/kg, 29.98%, 315.1 kPa and 795.55 kPa
• 1000 kJ/kg, 900 kJ/kg, 100 kJ/kg, 10%, 500 kPa and 1000 kPa](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fbe1f60b6-0ba6-4be5-a23b-3784c454d158%2F12569c1f-f2e1-4a12-af3f-77988ab2fc28%2Fjs65clo_processed.jpeg&w=3840&q=75)
Transcribed Image Text:5.) A kilogram of wet steam is taken as a sample for study. It has a pressure
of 0.805 MPa and an enthalpy of 2287 kJ/kg. What is the moisture percentage
of the steam?
• 23.56%
• 76.50%
• 55.41%
• 89.49%
Internal Energy
Enthalpy
Entropy
Set,
Squid
Specific Volume
Sat
Liqund
Sat.
Te
Sa
Liquid
Sat
Liquid
Sat.
Vapur
Sat.
Vapt
Sal.
Tapor
Pres
MP
Evap.
Evap
Vapor
Evap.
10,
10,
h h
h,
709.47 2057.O 2766 4
711.85 2055.2 2767.0
714.20 2053,4 2767.5 2.0306 4.6451 6.6758
716.52 2051.6 2768.1
718.83 2049.8 2768.6
2.0200 4.6647 6.6847
2.0253 4.6549 6.6802
255.6
708.64 1866.1 2574.7
167,78
168.32 1.1121 252.4 711.00 1864.2 2575.2
15
76
77 168.86 LI128 249.3 713.34 1862.2 2575.6
.78
.79
169.39 1.1135 246.3 715.66 1860.3 2576.0
169.91 11142 243.3
2.0359 4.6355 6.6714
2.0411 4.6260 6.6670
717.95 1858.5 2576.4
720.22 1856.6 2576.8
722.47 1854.7 2577.2
721.11 2048.0 2769.1 2.0462 4.6166 6.6628
723,38 2046.3 2769.7 2,0513 4.6073 6.6585
80
.81
82
83
.84
170.43 1.1148 240,4
170.95 1.1155
171.46 1.1161
171.97 1.I168
172.47 1.1174
237.6
234.9 724.70 1 852.9 2577.6 725.62 2044.5 2770.2 2.0563 4.5981 6.6544
232.2 726.91 1851.1 2578.0
229.5
729.10 1849.2 2578 3
727.83 2042.8 2770.7 2.0612 4.5890 6.6502
730.04 2041I 2771.2 2.0662 4.5800 6.6462
227.0 731.27 1847.4 2578.7 732.22 2039.4 2771.6 2.0710 4.5711 6.6421
85 172.96L1181
.86
.87
173.46 1.1187 224.5 733.42 1845.7 2579.1 734.38 2037.7 2772.1 2.0758 4.5623 6.6381
173.94
174.43
174.90
1.1193
1.1200
1.1206
222.0
219.6
217.3
735.55 1843.9 2579.4
737.66 1842.1 2579.8
739.75 1840.4 2580.1
736.52 2036.I 2772.6 2.0806 4.5536 6.6342
738.64 2034.4 2773.0 2.0853 4.5450 6.6303
740.75 2032.8 2773.5 2.0900 4,5364 6,6264
.88
89
6.) Air undergoes Isothermal expansion in a Carnot cycle where the pressure
decreases from 2.5 MPa to 1.5 MPa. This process has a temperature of 550
K and it decreases to 400 K before the Isothermal compression stroke. Find
a.) Qa, b.) Qr, c.) Wnet (kJ/kg), d.) the efficiency (%), e.) draw the T-S diagram
with proper label of points, and f.) the pressures before and after Isothermal
compression
• 71.55 kJ/kg, 61.78 kJ/kg, 9.77 kJ/kg, 13.65%, 251.52 kPa and 502 kPa
• 80.66 kJ/kg, 58.66 kJ/kg, 22 kJ/kg, 27.27%, 492.08 kPa and 820.13 kPa
• 61.22 kJ/kg, 41.22 kJ/kg, 20 kJ/kg, 29.98%, 315.1 kPa and 795.55 kPa
• 1000 kJ/kg, 900 kJ/kg, 100 kJ/kg, 10%, 500 kPa and 1000 kPa
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