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Table 6. -Thermodynamic Properties of Moist Air8, 29.921 In. Hg
Temp * Dbg
F.
Saturation
Humidity Ratio Wt Weight op Water
per Lb op Dry Am
Pounds
X 10*
Grains
-60 -59 -58 -57
-56
-55 -54 -53 -52 -51
-50 -49
-48 -47 -46
-45 -44 -43 -42
-41
-40
-39 -38 -37 -36
-35
-34 -33 -32
-31
-30
-29
-28 -27 -26
2.108 2.262
2.418 2.595 2.773
<
2.973 3.181 3.399 3.636
3.888
4.156 4.428 4.738 5.054 5.395
5.753 6.133
6.543 6.971 7.435
7.907 8.431 8.965
9.548 10.16.
10.80 11.49
12.20 12.97 13.76
14.58 15.43
16.45 17.49 18.55
0.14756 .15834
.16926 .18165 .19411
0.20811 .22267 .23793
' ..25452 .27216
0.29092 .80996 .33166 .85378 .37765
0.40271 .42931 .45801 .48797 .52045
0.55349 .69017 .62755 .66836 .71120
0.75600 .80430 .85400 .90790 .96320
1.0206 1.0801 1.1515 1.2243 1.2985
Volume Cu Ft per Lb Dry Am
Dry Air Pa
10.07 10.09 10.12 10.14
10.17
10.19 10.22 10.24 10.27 10.29
10.32 10.34 10.37
10.40 10.42
10.45
10.47 10.50 10.52
10.55
10.67 10.60 10.62
10.65
10.67
10.69 10.72
10.75
10.77 10.80
10.82
10.86 10.87 10.90 10.92
Pat (tl.-t'a)
Saturated Mixture
p
0.00 .00 .00 .00
.00
10.07 10.09 10.12 10.14
10.17
0.00 .00 .00
.00 .00
' 10.19 10.22 10.24
10.27 10.29
o.oo .00
.00 .00
' .00
10.32 10.34
10.87 10.40 10.42
0.00 .00 .00
.00 .00
10.45
10.47 10.50 10.52
10.55
0.00 .00 .00 .00
.00
10.67 10.60 10.62 10.65
10.67
0.00 .00 .00 .00
.00
'
10.69 10.72 10.75
10.77 10.80
0.00 .00 .00 . .00 .00
10.82
10.85 10.87 10.90 10.92
Enthalpy Btu per Lb Dry Am
Dry Air
Aa
hat
(A*-- ha)
Saturated Mixture
ha
Specipic Enthalpy
op
Solid Water Btu per
Lb
-14.48 -14.23 -13.99 -13.75 -13.50
0.02 .02 .02 .03
.03
-14.46 -14.21
-13.97 -13.72
-13.47
-185.4 -185.0 -184.6 -184.2
-183.8
-13.26 -13.02 -12.78
-12.53 -12.29
0.03 .03 .04 .04 .04
-13.23 -12.99 -12.74 -12.49
-12.25
-183.4
-182.9 -182.5
-182.1 -181.7
-12.05 -11.81 -1T.57 -11.32 -11.08
-10.84 -10.60 -10.35 -10.11
-9.872
0.04 .05 .05 .05 .06
0.06 .06 .07 .07 .077
-12.01 -11.76 -11.52 -11.27 -11.02
-10.78 ' -10.54
-10.28 -10.04
-9.795
-181.3 -180.9 -180.4 -180.0 -179.6
-179.2 -178.7 -178.3 -177.9 -177.4
-9.629
-9.388 -9.146 -8.905
-8.663
0.082
.088 .093 .100 .106
y 9.547 -9.300 -9.053 -8.805
-8.557
-177.0,
-176.6 -176.1 -175.7
-174.8
-8.422
-8.180 -7.939
-7.698 -7.457
0.113 .120
.127 .136 .144
-8.309
-8.060 -7.812 -7.562
-7.313
-174.4
-174.0 -173.5
-173.1 -172.6
-7.216 -6.975 -6.734 -6.493 -6.251
0.152 .161 .172 .183 .194
-7.064
-6.814 -6.562 --6;310
-6.057
-172.2
-171.7 -171.3 -170.9 -170.4
Saturation Pressure
Pa X 10*
In. of Hg
Lb per Sq In.
101.4 108.8 116.3 124.8 133.4
143.0 153.0 163.5 174.9 187.0
199.9 213.0 227.9 243.1 259.5
276.7 295.0 314.7 335.3 357.6
380.3 405.5 431.2 459.2 488.4
519.5 552.4 586.5 623.7 661.8
701.0 742.2 791.2 841.0 . 892.1
49.808 53.443 57.127 61.302
65.526
70.242 75.154
80.311 85.911 91.854
98.191 104.63 111.94 119.41
127.47
135.92
144.90 154.58 164.70 175.65
186.80 199.18 211.81 225.56
239.90
.
255.18 271.34
288.09 306.36
325.08
344.33
364.57
388.64 413.10 438.20
Temp Dbg
F
-60
-59 -58 -57 ! -66
-55 -54
-53 -52
-51
.
-50 -49 -48 -47
-46
~-4445
-43 -42 -41
-40
-39 -38 -37
-36
'
-35
-34 . -33
-32
--31.
.
-30
-29 -28 -27 -- 2(3
-
"Compiled by W. M. Sawdon and extended by John A. Goff.
J- .
_ Q f *
I
**
9 kd v g; _ O
Temp Deg
F
-- 25 -24 -23 -22 -21
-20 -19 -18 -17 -16
-15
-U
-13 -12 -11
-10
-e
-8 -7
-5 -4 -3 -2 -1
Table 6. Thermodynamic Properties of Moist Air's 29.921 In. Hg (Continued)
Saturation Humidity Ratio
Wa Weight of Water per Lb op Dry Air
Pounds X 10*
Grains
19.68 20.86 22.13 23.42 24.79
26.25 27.81 29.45 31.12 32.95
34.84 36.86 38.98 41.19 43.54
45.98 48.58 51.25 52.06 57.12
60.30 63.57 67.05 70.69 74.50
78.52
1.3776 1.4602 1.5401 1.6394 1.7353
1.8375 1.9467 2.0615 2.1784 2.3065
2.4388 2.5802 2.7286 2.8833 3.0478
3.2186 3.4006 3.5875 3.6442 3.9984
4.2210 4.4499 4.6935 4.9483 5.2150
5.5000
Volume Cu Ft per Lb Dry Am
Dry Air
va
10.95 10.97 11.00 11.02 11.05
11.07 11.10 11.13 11.15 11.18
11.20 11.23 11.25 11.28 11:30
11.33 11.35 11.38 11.40 11.43
11.45 11.48 11.50 11.53 11.55
11.58
Pat (Pa-Pa)
0.00 .00 .00 .00 .00
0.00 .00 .00 .00 .00
0.01 .01 .01 .01 .01
0.01 .01 .01 .01 .01
0.01 .01 .01 .01 .01
0.01
Saturated Mixture
Va
10.95 10.97 11.00 11.02 11.05
11.07 11.10 11.13 11.15 11.18
11.21 11.24 11.26 11.29 11.31
11.34 11.36 11.39 11.41 11.44
11.46 11.49 11.51 11.54 11.57
11.59
Enthalpy Btu per Lb Dry Air
Drj Air'
Aaa (ha--he)
Saturated Mixture
A.
Specific Enthalpy
of
Solid WATER' Btu per
<Lb
Saturation Pressure Pa X 10*,
In. of Hg
Lb per Sq In.
-6.011 -5.770 -5.529 -5.288 -5.047
-4.807 -4.566 -4.325 -4.085 -3.844
-3.604 -3.363 -3.123 -2.883 -2.642
-2.402 -2.162 -1.921 -1.681 -1.441
-1.201 -0.960 -0.720 -0.480 -0.240
0
0.206
.219 .232
.246 .260
0.276 .292
.310 .327 .347
0.367 .388 .411 ' .434
.459
0.485
.513 .541 .670 .603
0.637 .672
.709 .748 .789
0.832
-5.805 -5.551 -5.297 -5.042 -4.787
-- 4.531 -4.274 -4.015 -3.758 -3.497
-3.237 -2.975 -2.712 -2.449 -2.183
-1.917 -1.649 -1.380 -1.111 -0.838
-0.564 -0.288 -0.011 +0.268 +0.549
+0.832
-170.4 . -170.0
-169.5 -169.0 -168.6
-168.2 -167.7 -167.2 -166.8 -166.3
-165.9 -165.4 -165.0 -164.5 -164.0
-163.6 -163.1 -162.7 -162.2 -161.7
-161.3 -160.8 -160.3 -159.9 -159.4
-158.9
946.4 1003. 1064. 1126. 1192.
1262.0 1337. 1416. 1496. 1584.
1675.0 1772. 1874. 1980. 2093.
2210.0 2335. 2463. 2502. 2745.
2898.0 3055. 3222. 3397. 3580.
3773.0
464.87 402.67 522.64
553.09 585.51
619.89 656.73
695.54 734.84
778.06
822.76 870.41 920.51
972.58 1028.1
1085.6 1147.0
1209.8 1229.0
1348.3
'
1423.5 1500.6 1582.6 1668.6 1758.5
1853.3
Temp Dbg
F
-25 -24 -23 -22 --21
-20 -19 -18 -17 -16
-15 -14 -13 -12 -11
-10
-7 -6
-5 -4 -3 -2 -1
0
Therm odynam ics o f A ir arid W ater M ixtu re s
C h a p te r 1______________ ____________ 1945 G u id e . . - l |