Document q34RQBaJgn5Q8p3Kn9YzMvDMq
A m erican Society of H e a tin g and V e n t ila t in g Engineers G uide, 1937
Temp., F
-50 55 53
-- 52 -51
50 48 47 -40 -45 -- 43 -- 42 -41 40
-30 -- 35
-- 32 -31 -- 30 -- 20
28 ... -- 97
-20
Table 6; Properties of Saturated Water Vapor with Air at Low Temperatures8 (Part I, Continued)
Pressure or'8aturatbd . Vapor X l(M
Weight o? Saturated Vapor
Volume in Cu Ft Barometer, 29.92 In. Hg
1_ Heaip Content pee Lb
In. of Hg
Lb per Sq In.
per Cu Ft
Pouods X KM
Grains
per lb of Dry Air
Pounds X 1(M
Gra db
of lib of Dry Air
of lib of
Dry Air + Vapor to Saturate it
Dry Air
0F Datum
Vapor
32 F Datum
Dry Air with Vapor to Saturate
it
101.4 ins s
124 ft 133.4
143.0 153.0 103.5 174.9 187.0
199.9 213.0 227.9 243.1 259.5
270.7 295 0 314.7 335.3 357.0
ftRO 3 405.5 431.2 459.2 488.4
519.5 552.4 580.5 023.7 001.8
701.0 742.2 791.2 ft41 .0 892.1
49.808 53.443 57.127 01.302 05.520
70.242 75.154
80.311 85.911 91.854
98.191 104.03 111.94
119.41 127.47
135.92 144.90
154.58 164.70 175.65
180.80 199.18 211.81 225.56
239.90
255.18 271.34 288.09 300.30
325.08
'
344.33 364.57
388.64 413.10 438.20
0.20993 .22469 .23958 .25645 .27344
0.29239 .31207 .33207 .35499 .37862
0.40376 .42917 .45808 .48744 .51905
0.55213 .58722 .62493 .66426 .70072
0.7498 .7976 .8461 .8989 .9538
1.0122 1.0738 1.1374 1.2067 1.2774
1.3499 1.4260 1.5166 1.6083 1.7021
0.01470 .01573 .01077 .01795 .01914
0.02047 .02184 .02329
.02485 .02050
0.02826 .03004 .03207 .03412 .03633
0.03865 .04111 .04375 .04650 .04947
0.05249 : .05583 .
.05922 .06292 .06677
0.07085 .07517 .07962 .08447 .08942
0.09449 ".09982 .10616 .11258 .11914
2.108 2.262 2.418 2.595 2.773
2.973 3.181 3.399 3.636 3.888
4.150 4.428 4.738 5.054 5.395
5.753 6.133 6.548 6.971 7.435
7.907 8.431 8.965 9.548 10.16
10.80 11.49 12.20 12.97 13.70
14.58 15.43 10.45 17.49 18.55
0.14750 .15834 .16926 .18165 .19411
0.20811 .22267 .23793 .25452 .27210
0.29092 .30996 .33166 .35378 .37705
0.40271 .42931 .45801 .48797 .52045
0.55349 .59017 .02755 .66836 .71120
0.75000 .80430 .85400' .90790 .96320
1.0206 1.0801 1.1515 1.2243 1.2985
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 10.00 10.62 10.65 10.67
10^69 10.72 10.75 10.77 10.80
10.82 10.85 10.87 10.90 10.92
10.07 10.09 10.12 10.14 10.17
. -14.48 -14.23 -13.99 -13.75 -13.50
1032.2 1032.7 1033.1 1033.6 1034.0
-14.40 -14.21 -13.97 -13.72 -13.47
10.19 10.22 10.24
10.27 10.29
-- 13*20 -13.02 . -12.78 -12.53 -12.29
1034.5 1034.9 1035.4
1035.8 1036.3
-13.23 -12.99 -12.74 -12.49
-- 12.25
10.32 10.34 10.37 10.40
10.42
-12.05 -11.81 -11.57 -11.32
-11.08
1030.7 1037.2
1037.6 1038.1 : 1038.5
-12.01 -11.70 -- 11.52
-11.27 -11.02
10.45 10.47 10.50
10.52 10.55
-10.84 -10.60 -10.35
-10.11 -9.872
1039.0 1039.4 1039.9
1040.3 1040.8
-10.78 -- 10.54
-10.28 -- 10.04
-9.795
10.57 10.60 10.02 10.65 10.67
-9.624 -9.388
-9.140 -8.905 -8.063
1041.2
1041.7 1042.1 1042.6 1043.0
-9.547 -9.300
-- U.UOiJ
-- 8.805 -8.557
10.69 10.72 10.75 10.77 10.80
-8.422
-8.180 -7.939 -7.698 -7.457
1043.5 1043.9 1044.4
1044.8 1045.3
' -8.309 -8.060 -7.812 -7.562 -- 7.313
10.82 10.85
10.87 10.90 10.92
-7.210 -6.975 -0.734
-0.493 -6.251
`
1045.7 1046.2
1046.6 1047.1 ' 1047.5
-7.064 -6.814 -- 6.562
-6.310 -6.057
ftCompiled by W. M. Sawdon, vapor pressures converted from International Critical Tables.
r
i1
' C hapter 1-- A ir , W ater a n d Steam
Table 6. Properties of Saturated Water Vapor with Air at Low Temperatures (Part I, Concluded)
Temp., F
Pressure op Saturated Vapor X KM
In. of Hg
Lb per Sq In.
-25 -24 -23 -22 -21
946.4 1003. 1064.
1126. 1192.
-20
-19 -18 -17 -16
1262.0 1337.
1410. 1490. 1584.
-15 -14 -13
-12 -11
1675.0 1772. 1874. 1980.
2093.
-10 ,
-9 , -8 , -7 -0
2210.0 2335. 2463. 2502. ' 2745.
-5 -4 -3 -2 -1 .
2898.0 3055. 3222. 3397. 3580.
0 3773.0
464.87 492.67 522.64 553.09 585.51
619.89 656.73 695.54 734.84 778.00
822.76 870.41 920.51 972.58 . 1028.1
1085.0 1147.0 1209,8 1229.0 1348.3
1423.5 1500.0 1582.6 1668.6 1758.5
1853.3 .
Weight or Saturated Vapor
Volume in Cu Ft Barometer, 29.92 In. Hg
per Cu Ft
Pounds X 10-
Grains
per lb of Dry Air
Pounds X 1(M
Grains
of 1 lb of Dry Air
of 1 lb of Dry Air + Vapor to Saturate it
1.8016 1.9049 2.0102 2.12872.2484
2.3750 2.5105 2.6527 2.7963 2.9542
3.1168 3.2899 3.4714 3.6590 3.8599
4.0666 4.2871 4.5120 4.5734 5.0060
5.2738 5.5473 5.8379 6.1414 6.4583
6.7914
0.12011 .13334 .14113 .14901 .15739
0.16025 .17574 .18569 .19574 .20679
0.21818 .23029 .24300 .25617 .27019
0.28466 .30009 .31584 .32014 .35040
0.36917 .38831 .40865 .42990 .45208
0.47500
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 52.00 57.12
00.30 03.57 07.05 70.69 74.50
78.52
1.3776 1.4602 1.5491 1.6394 1.7353
1.8375 1.9467 2.0615 2.1784 2.3005
2.4388 2.5802 2.7280 2.8833 3.0478
3.2180 3.4006 3.5875 3.6442 3.9984 '
4.2210 4.4499 4.6935 4.9483 5.2150
5.5000
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
10.95 10.97 11.00 11.02 11.05
11.07 11.10 11.13 11.15 11.18
11.21 11.24 11.20 11.29 11.31
11.34 11.30 11.39 11.41 11.44
11.46 11.49 11.51 11.54 11.57
11.59
^Compiled by W. M. Sawdon, vapor pressures converted from International Critical Tables.
\
Heat Content per Lb
Dry Air 0F
Datum
-6.011 -5.770 -5.529 -5.288 -5.047
-4,807 -4.560 -4.325 -4.085 -3.844
-3.604 -3.303 -3.123 -2.883 -2.042
-2.402 -2.162 -1.921 -1.081 -1.441
-1.201 -0.9604 -0.7203 -0.4802 -0.2401
0
Vapor 32 F Datum
1048.0 1048.4 1048.9 1049.3 1049.8
1050.2 1050.7 1051.1 1051.0 1052.0
1052.5 1052.9 1053.4 1053.8 1054.3
1054.7 1055.2 1055.0 1058.1 1050.5
1057.0 1057.4 1057.9 1058.3 1058.8
1059.2
Dry Air with Vapor to Saturate
it
-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 -1.131 -0.8375
-0.5630 -0.2882 -0.01098 +0.2679 +0.5487
+0.8317