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?

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)
8th Edition
ISBN:9781305387102
Author:Kreith, Frank; Manglik, Raj M.
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Chapter5: Analysis Of Convection Heat Transfer
Section: Chapter Questions
Problem 5.12P
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Read the questions carefully before answering. Box or indicate your final answers when solving and draw your diagrams cleanly. Use the steam tables provided and DO NOT ROUND the values from the steam table. Write down the values taken from the steam table.

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?

ISOMETRIC
ISOBARIC
ISORERMAL
ISENTROPIC
POLYTEOPIC
P-V and
T-s diagrom
eVid
2
Sz-
i 1,V, T Relations
PiV." = P2V2"
V2
• P,V, = PVz
%3D
• 0
• plvz-V.)
4 Wa
, PVi In
V,
mR (T-T,)
mR (G-T)
I-K
• Ws
v(P.-)
- AK
. - AH
• Q- 4H
• McvCT-1)
* mcp (Tz-1)
Men (Tz-T)
mRT In
P2
C used for
Q
Cp =
• Cv:
Cn =Cu C
none
• none
mcy (17- 1,)
.mey (Ta-1)
mcv LTq-T.)
• Mcp (z-1,)
mcpl,-1,)
• b
%3D
• Mcv In Ie
a4 =
i AS
mep In T.
mRIn .
P2
mcnln 12h,
Transcribed Image Text:ISOMETRIC ISOBARIC ISORERMAL ISENTROPIC POLYTEOPIC P-V and T-s diagrom eVid 2 Sz- i 1,V, T Relations PiV." = P2V2" V2 • P,V, = PVz %3D • 0 • plvz-V.) 4 Wa , PVi In V, mR (T-T,) mR (G-T) I-K • Ws v(P.-) - AK . - AH • Q- 4H • McvCT-1) * mcp (Tz-1) Men (Tz-T) mRT In P2 C used for Q Cp = • Cv: Cn =Cu C none • none mcy (17- 1,) .mey (Ta-1) mcv LTq-T.) • Mcp (z-1,) mcpl,-1,) • b %3D • Mcv In Ie a4 = i AS mep In T. mRIn . P2 mcnln 12h,
Internal Energy
Sat,
Lield
Specific Volume
Enthalpy
Net.
Liud
Entropy
Te
Set.
Nai.
Sat.
Nat.
Vapt
Sat.
13quid
Sat
apor
Pree
Lid
Vaper
Evp
Evap
10,
h,
1.
708.64 1866.I 2574,7
709.47 2057.0 2766 4 2.0200 4.6647 6.6847
167.78
255.6
.15
168.32 121 252 4 7I1.00 1864 2 2575.2 711.85 2055.2 27670 2.0253 46549 6.6802
76
168.86 1128
169 39 1.1135 246.3 7I5.66 1860.3 2576.0 71652 20516 27681 20359 46355 6.6714
249.3 713.34 1862.2 2575.6 714.20 2053.4 2767.5 2.0306 4.6451 6.6758
77
78
169.91
243.3
717.95 1858.5 2576.4
718.83 2049.8 2768.6 2.0411 4.6260 6.6670
79
T142
721 11 2048.0 27691 2.0462 46166 6.6628
723.38 2046.3 2769.7 2.0S13 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
170.43 1.1148
720.22 1856.6 2576.8
722.47 1854.7 2577.2
724.70 1852.9 2577.6
240 4
SI 170.95 LISS 237.6
82 171.46 L1161
171.97 1.1168
234.9
232.2 726.91 1851.1 2578.0
229.5
.83
.84
729.10 1849 2 2578.3
172.47 1.1174
85
86
87
172.96 1.1181
173 46
L.1187
173.94
LI193
174.43
1.1200
227.0
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 18404 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 45450 6.6303
2.0900 4,5364 6.6264
89
174.90
1.1206
Transcribed Image Text:Internal Energy Sat, Lield Specific Volume Enthalpy Net. Liud Entropy Te Set. Nai. Sat. Nat. Vapt Sat. 13quid Sat apor Pree Lid Vaper Evp Evap 10, h, 1. 708.64 1866.I 2574,7 709.47 2057.0 2766 4 2.0200 4.6647 6.6847 167.78 255.6 .15 168.32 121 252 4 7I1.00 1864 2 2575.2 711.85 2055.2 27670 2.0253 46549 6.6802 76 168.86 1128 169 39 1.1135 246.3 7I5.66 1860.3 2576.0 71652 20516 27681 20359 46355 6.6714 249.3 713.34 1862.2 2575.6 714.20 2053.4 2767.5 2.0306 4.6451 6.6758 77 78 169.91 243.3 717.95 1858.5 2576.4 718.83 2049.8 2768.6 2.0411 4.6260 6.6670 79 T142 721 11 2048.0 27691 2.0462 46166 6.6628 723.38 2046.3 2769.7 2.0S13 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 170.43 1.1148 720.22 1856.6 2576.8 722.47 1854.7 2577.2 724.70 1852.9 2577.6 240 4 SI 170.95 LISS 237.6 82 171.46 L1161 171.97 1.1168 234.9 232.2 726.91 1851.1 2578.0 229.5 .83 .84 729.10 1849 2 2578.3 172.47 1.1174 85 86 87 172.96 1.1181 173 46 L.1187 173.94 LI193 174.43 1.1200 227.0 224.5 222.0 219.6 217.3 731.27 1847.4 2578.7 733,42 1845.7 2579.1 735.55 1843.9 2579.4 737.66 1842.1 2579.8 739.75 18404 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 45450 6.6303 2.0900 4,5364 6.6264 89 174.90 1.1206
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