Document 2Vg1bD77JNgQEQ6yYw2eM0er
American Society of Heating and Ventilating Engineers Guide, 1936
Temp. .
F
Lb peb
Sq In.
' Liquid
Table 1. Properties of Ammonia .
Vapor
Heat Content and Entropt Taken From --40 F
Heat Content
Entropy
100 F Superheat 200.F Superheat -
liquid Vapor Liquid Vapor Ht Ct Entropy Ht. Ct. Entropy
0 30.42 0.02419 5 34.27 0.02432
10 38.51 0.02446
IS 43.14 0.02460
20 48.21 0.02474 25 53.73 0.02488 30 59.74 0.02503 35 66.26 0.02518 40: 73.32 0.02533 45 : 80.96 0.02548 50 89.19 0.02564 55 98.06 0.02581 60 107.6 0.02597 65 117.8 0.02614 70 . 128.8 0.02632 75 . 140.5 0.02650 80 153.0 0.02668 85 . 166.4 0.02687 90 180.6 0.02707 95 195.8 0.02727 100 211.9 0,02747 105 228.9 0.02769
9.116 8.150 7.304 6.562 5.910 5.334 4.825 4.373 3.971 3.614 3.294 3.008 2.751 2.520 2.312 2,125 1.955 1.801 1.661 1.534 1.419 1.313
42.9 611.8 0.0975 1.3352 666.8 1.4439 720.3 1.5317 48.3 613.3 0.1092 1.3253 668.9 1.4339 722.7 1.5215 53.8 614.9 0.1208 1.3157 670.9 1.4242 725.0 1.5115 59.2 616.3 0.1323 1.3062 673.0 1.4148 727.3 1.5018 64.7 617.8 0.1437 1.2969 675.0 1.4056 729.6 1.4925 70.2 619.1 0.1551 1.2879 677.0 1.3965 731.9 1.4833 75.7 620.5 0.1663 1.2790 678.9 1.3879 734.2 1.4744 81.2. 621.7 0.1775 1.2704 680.8 1.3794 736.5 1.4658 86.8 623.0 0.1885 1.2618 682.7 1.3712 738.6 1.4575 92.3 624.1 0.1996 1.2535 684.6 1.3630 740.9 1.4493 97.9 625.2 0.2105 1.2453 686.4 1.3552 743.1 1.4412
103.5 626.3 0.2214 1.2373 688.1 i:3474 745.3 1.4335 109.2 627.3 0.2322 1.2294 689.9 1.3399 747.4 1.4260 114.8 628.2 0.2430 1.2216 691.7 1.3326 749.5 1.4186 120.5 629.1 0.2537 1.2140 693.3 1.3254 751.6 1.4114 126.2 629.9 0.2643 1.2065 695.0 1.3184 753.7 1.4044 132.0 630.7 0.2749 1.1991 696.6 1.3116 755.8 1.3976 137.8 631.4 0.2854 1.1918 698.2 1.3048 757.9 1.3909 143.5 632.0 0.2958 1.1846 699.7 1.2983 759.9 1.3843 149.4 632.6 0.3062 1.1775 701.2 1.2919 761.9 1.3783 155.2 633.0 0.3166 1.1705 702.7 1.2855 763.8 1.3718 161.1 633.4 0.3269 1.1635 704.2 1.2793 765.7 1.3655
ft
-
7C^D-
=
1.3172
cv
Table 2. Properties of Carbon Dioxide
Sat. Temp.
F
Abb Press. Lb peb Sq In.
Volume
Liquid Vapor
Heat Content and Entropy Taken From -40 F
Heat Content
Entropy
50 F Superheat 100 F Superheat
liquid Vapor Liquid Vapor' Ht. Ct. Entropy Ht:Ct: Entropy
0 305.5 0.01570 0.2904 18.8
5 332.0 0.01592 0.2661 20.3
10 360.2 0.01614 0.2437 24.0
15 390.0 0.01637 0.2236 26.7
20 421.8 0.01663 0.2049 29.4
25 455.3 0.01690 0.1879 32.3
' 30
490.8 0.01719 0.1722 35.4
- 35
529.3 0:01752 0.1577 38.5
40 567.8 0.01787 0.1444 .41.7.
45 609.6 0.01826 0.1321 45.0
50 653.6 0.01868 0,1205 48.4
55 700.0 0.01917 0.1096 51.9
60 748.6 0.01970 0.0994 55.5:
65 . 70
799.8 0.02034 0.0899 59.4 853.4 0.02112 0.08040 63.7
"75 ' 909.7 0.02217 0.07072 68.4 80 968:7 0.02370 0.06064 73.9
85 1030.3 0.02620 0.05006 81.4
87.8 1069.9 0.03454 0.03454 97.0
138.9 0.0418 0.3024 138.8 0.0472 0.3000 138.7 0.0526 0.2970 138.5 0.0581 0:2939 138.3 0.0638 0.2909 138.1 0.0697 0.2879 137.8 0.0758 0.2849 137.3 0.0817 0.2813 136.7 0.0874 0.2776 135.9 0.0935 0.2739 135.0 0.1000 0.2699 133.7 0.1062 0.2656 132.1 0.1135 0.2608 130.2 0.1206 0.2554 127.5 0.1282 0,2487 123.7 0.1370 0.2404 118.7 0.1476 0.2304 112.2 0.1668 0.2169 97.0 0.1880 0.1880
153,7 0.3342 153.7 0.3312 153.7 0.3281 153.7 0.3257 153.7 0.3227 153.7 0.3196 153.7 0:3164 153.7 0.3147 153.7 0.3132 153.7 0.3112 153.7 0.3081 153.7 0.3051 153.7 0.3022 153,7. 0.2995 153.7 0.2971 153.7 0.2947 153.7 0.2927 153.7 0.2909 153.7 0.2901
167,5 0.3612. 167.8 0.3582 168.0 0.3550 168.3 0:3517
168:6 0.3489 168.8 0:3464 169.1 0:3441 169.3 0.34i5
169.6 0.3391169.9 0.3365 170.1 0.3342 170.4 0.3320 170.7 0.3297 170.9 0.32?7 171'. 2 6.3257 171.4 0.3237 171.7 0.3220 180.0 0,3204: 180.1 0.3199
40
IStrT'
' r-
Chapter 2--Refrigeration
Table 3. Properties of DichlorodifluoromeThane (Fu)
--
Sat. Temp.
F
Press. Sa In.
liquid
Vapor
Heat Content and Entropt Taken From --40 F
Heat. Content Liquid Vapor
Entropy. Liquid Vapor
25 F Superheat
50 F Superheat
Ht. Ct. Entropy Ht Ct. Entropy
0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120
23.87 0.0110 26.51 0.0111 29.35 0.0112
1.637 1.485 1.351
32.44 0.0112 1.230
35.75 0.0113 1.121 39:33 0.0114 1.025 43.16 0.0115 0.939
47.28 0.0116 0.863 51.68 0.0116 0.792 56.38 0.0117 0.730 61.39 0.0118 0.673
66.74 0.0149 0.622
72.41 0.0119 0.575
78.44 0.0120 0.532
84.82 0.0121 0,493
91.60 0.0122 0.458
98.76 0.0123 0.425
106.4 0.0124 0.395
114.3 0.0125 0.368
122.8 0.0126 0.343
131.6 0.0127 0.319
140.9 0.0128 0.298
150.7 0.0129 0.277
161.0 0.0130 0.258
171.8 0.0132 0.240
8.25 78.21 9.32 78.79 10.39 79.36 11.48 79.94 12.55 80.49 13.66 81.06 14.76 81.61 15.88 82.16 17.00 82.71 18.14 83.26 19.27 83.78 20.41 84.31 21.57 84.82 22.72 85.32 23.90/ 85.82 25.08 86.32 26.28 86.80 27.48 87.28 28.70 87.74 29.& 88.19 31.16 88.62 32.40 89.03 33.65 89.43 34.90 89.80 36.16 90.15
0.01869 0.17091 81.71 0.02097 0.17052 82.29 0.02328 0.17015 82.90 0.02556 0.16981 83.49 0.02783 0.16949 84.09 0.03008 0.16920 84.67 0.03233 0.16887 85.25 0.03458 0.16860 85.83 0.03680 0.16833 86.41 0.03904 0.16808 86.96 0.04126 0.16785 87.54 0.04348 0.16763 88.09 0.04568 0.16741 88.64 0.04789 0.16721 89.18 0.05009 0.16701 89.72 0.05229 0.16681 90.25 0.05446 0.16662 90.78 0.05665 0.16644 91.27 0.05882 0.16624 91.77 0.06100 0.16604 92.27 0.06316 0.16584 92.75 0.06534 0.16564 93.24 0.06749 0.16542 93.66 0.06965 0.16520 94.07 0.07180 0.16495 94:47
0.17829 85.26 0.17786 85.89 0.17747 86.51 0.17710 87.13 0.17679 87.76 0.17643 88.37 0.17612 88.97 0.17582 89.56 0.17554 90.16 0.17528 90.76 0.17505 91.38 0.17482 91.93 0.17458 92.51 0.17436 93.11 0.17417 93.66 0.17397 94.23 0.17379 94.80 0.17361 95.33 0.17344 95.86 0.17323 96.39 0.17308 96.92 0.17291 97.46 0.17274 97.93 0:17253 98.40 0.17233 98.84
0.18547 0.18502 0.18460 0.18420 0.18382 0.18349 0.18315 0.18285 0.18256 0.18227 0.18203 0.18181 0.18155 0.18132 0.18114 0.18092 0.18075 0.18056 0.18040 0.18020 0.18004 0.17991 0.17976 0.17955 0.17939
c,, = = 1.133
cv
Table 4. Properties of Water
Sat. Temp.
Abb Press. Lb per Sq In.
liquid
Vapor
Heat Content and Entropt Taken From -32 F
Heat Content
Entropy
50 F Superheat 100 F Superheat
Liquid Vapor Liquid Vapor Ht Ct Entropy Ht Ct Entropy
32 35 40 45 50 55 60 65 70 75 80 85 .. 90 95 100 105
0.0887 0.01602 3296.0 0.1000 0.01602 2941.0 0.1217 0.01602 2441.0 0.1475 0.01602 2034.0 0.1780 0.01602 1702.0 0.2140 0.01603 1430.0 0.2561 0.01603 1206.0 0.3054 0.01604 1021.0 0.3628 0.01605 868.0 0.4295 0.01606 740.0 0.507 0.01607 632.9 0.596 0.01609 543.3 0.698 0.01610 467.9 0.815 0.01612 404.2 0.949 0.01613 350.3 1.101 0.01615 304.4
0.00 1073.0 0.0000 2.1826 1096.9 2.2277 1120.8 2.2688 3.02 1074.4 0.0062 2.1724 1098.3 2.2172 1122.2 2.2581 8.05 1076.8 0.0163 2.1555 1100.6 2.2000 1124.5 2.2406
13.07 1079.2 0.0262 2.1390 1102.9 2.1832 1126.7 2.2234 18.08 1081.5 0.0361 2.1230 1105.2 2.1667 1129.0 2.2066 23.08 1083.9 0.0459 2.1073 1107.5 2.1506 1131.3 2.1902 28.08 1086.2 0.0556 2.0920 1109.8 2.1349 1133.5 2.1742 33.08 1088.6 0.0652 2.0771 1112.2 2.1196 1135.8 2.1585 38.07 1090.9 0.0746 2.0625 1114.5 2.1046 1138.1 2.1432 43.06 1093:2 0.0840 2.0483 1116.7 2.0900 1140.3 2.1283 48.05 1095.5 0.0933 2.0344 1119.0 2.0758 1142.5 2.1138 53.04 1097.8 0.1025 2.0208 1121.2 2.0619 1144.7 2.0996 58.03 1100.0 0.1116 2.0075 1123.4 2.0483 1146.8 2.0857 63.01 1102.3 0.1206 1.9946 1125.6 2.0350 1148.9 2.0721 68.00 1104.6 0.1296 1.9819 1127.9 2.0220 1151.1 2.0588 72.98 1106.8 0.1384 1.9695 1130:2 2.0093 1153.2 2.0458
For properties of steam at high' temperatures, see Page 27.