Document GKj9r38kgp5Z93QRQZ4k3mZVN
HEATING VENTILATING AIR CONDITIONING GUIDE 1942
Materials
Alloys Brass. Red.........................
Brass, Yellow...... ............. Bronze (80Cu, 20Sn)___ Monel Metal..................... Aluminum.............................. Asbestos...... .......................... Brickworks....................... ....
Carbon (Graphite)________ Coal............................ ...........
CokeTM............................. ........ Concrete........ ........................ Copper.................................... Fire Clay Brick.......... ......... Glass
Crown........ .........................
Flint.............. ...................... Gold........................................ . Gypsum......... ......................... Ice,__ :...................................... Ice.__........................................ Iron, Pure............................... Iron. Pure.............................. Iron. Cast-............................
Iron. Wrought....................... Lead........................ ................. NickeL... .................................. Masonry........ ......................... Plaster....... .............................. Platinum______ __,________ Rocks
Gneiss...... ........... Granite...... .........
Limestone....... Marble................ .
Sandstone__ ___ Silver...................... _ Steel....... .................. . Sulphur-___ ______ Silica Bricks______ Tin..................... .......
Woods (Average)-. Zinc...... ........ ______
Table 1. Specific Heat of Solids
Temperature F
Specific Heat
32 32 57-208 68-2370 80-212 68-208
104-1637'
64-212 77--1832
50-122 50-122 64
32 --40 32 32-600 68-212 59-212 32 32
58-212
63-210 54-212 59-212 32-212
32
240-320 77-1832 77 68 32
0.0899 0.0883 0.0862 0.127 0.212 0.195 0.195 0.314 0.278 0.201 0.270 0.0928 0.258
0.161 0.117 0.0312 0.259 0.487 0.434 0.1043 0.J27 0.1189 0.1152 0.0297 0.1032 0.2159 0.2 0.0319
0.196 0.192 0.216 0.21 0.22 0.0536 0.1175 0.220 0.263 0.0548 0.327 0.0913
Authority
S S S S S S H I H H H S I
S
s s
H
s s s
M H H S S H H S
Liquid
Alcohol, Ethyl.................... Alcohol, Methyl Glycerine............. ................ Lead (Molten)............... ...... Mercury_______ ___ ___ Petroleum Sea Water
So. Gr. 1.0043 So. Gr. 1.0463 Water ......
Table 2, Specific Heat of Liquids
Temperature F
Specific Heat
32
59-68 59-122
360 68
70-136
0.601 0 576
0.041
0.03325 0.511
-----
64 0.980 64 0.903 59 1.000
Authority S
Table 3, Specific Heat of Gases and Vapors
Substance
Air Ammonia............................... Carbon Dioxide. -___ ____ Carbon Monoxide.................. Coal Gas................ Flue Gas.... ............. .............. Hydrogen_____________ _ NitrogenTM............................. Oxygen...........______ ______ Water Vannr Water Vannr
Temperature F
32-392 ; 80-392 : 52-417 79-388 68-1900
70-212 32-392 55-404 212 356
Specific Heat at Constant
Pressure
Ratio of Specific Heat
Cp/Cv
Specific Heat at Constant
Volume (Computed)
Authority
0.2375 0.5356 0.2169 0.2426
0.3145
1.405 1.277
1.3003 1.395
0.1736
3.41
0.2438 0.2175 0.421 0.51
1.419 1.41
1.3977 1.305
0.1729 0.155 '
s s
ntFs: . When one temperature is given the true specific heat is given, otherwise the value is the mean specific heat between the given limits.
.. AuthoritiSs: S--Smithsonian Physical Tables, 1933; I--Internationa! Critical Tables; H-- Heating, Lhme^S^Marka A"" Condltlonmg- by L- A- Hardins and A. C. Willard; M--Engineers' Handbook, by
854
is?--"'--
CHAPTER 47?? TERMINOLOGY
Table 4. Circumferences and Areas of Circles
Diameter IK
Inches
Area
Sq In.
Sq Ft
Circumference
Inches
Feet
Diameter IN
Inches
Area
Sq In.
Sq Ft
Circumference
Inches
Feet
X
X. 1
IX IX lX 2 2X 2X 2X 3
ix 3X 3X 4
*x 4X KM 5
SX sx 5% 6
6X 6X 6M 7
ix 7X 7X, 8
%X m %M 9
9X 9X 9M 10 iox it UX 12
12M 13
I3H 14
1H IS tsx 16
I6H 17
mil 18 18)4 19
20
20X 21 21H 22
22X 23
23 J4 24 24M 25
2SM 26
26M -27
27H
0.049 0.196 0.442 0.78S 1.227 1.767 2.405 3.142 3.976 4.909 5.939 7.069 8.296 9.621 11.04 12.57 14.19 15.90 17.72 .. 19.64 21.65 23.76 25.97 28.27 30.68 33.18 35.79 38.49 41.28 44.18 47.17 50.27 S3.46 56.75 60.13 63.62 67.20 70.88 74.66 78.54 86.59 95-03 103.9 113.1 122.7 132.7
143.1 153.9 165.1 176.7 188.7
201.1 213.8 226.9 240.5 254. S 268.8 283.5 298.6 314.2
330.1 346.4
361.1 380.1 397.6 415.5 433.7 452.4 471.4
490.9 510.7 530.9 551.6 572.6 593.9
0.0003 0.0014 0.0031 0.0054 0.0085 0.0123 0.0167 0.0218 0.0276 0.0341 0.0412 0.0491 0.0576 0.0668 0.0767 0.0873 0.0986 0.1104 0.1231 0.1364 0.1504 0.1650 0.1840 0.1964
0.2131 0.2304 0.2486 0.2673 0.2867 0.3068 0.3276 0.3491 0.3713 0 3942 0.4175 0.4418 0.4668 0.4923 0.5185 O.S454
0.6010 0.6600 0.7215 0.7854 0.8520 0.9218 0.9937 1.069 1.146 1.227 1.310 * 1.396 1.485 1.576 1.670 1.767 1.867 1.969 2.074 2.182 2.293 2.405
2.508 2.640 2.761 2.885 . 3.012 3.142 3.274 3.409 3.547 3.687 3.832 3.976 4.125
0.785 1.571 2.356 3.142 3.927 4.712 . 5.498 6.283 7.069 7.854 8.639 9.425 10.21 10.99 11.78 12.57 13.35 14.14 14.92 15.71 16.49 17.28 18.06 18.85 19.64 20.42 21.21 21.99 22.78 23.56 24.35 25.13 25.92 26.70 27.49 28.27 29.06 29.85 30.63 31.42 32.99
34.56 36.13 37.70 39.27 40.84 42.41 43.98 45.55 47.12 48.69 50.27 51.84 53.41 54.98 56.55 58.12 59.69 61.26 62.83 64.40 65.97 67.54 69.12 70.69 72.26 73.83 75.40 76.97 78.54 80.11 81.68 83.25 84.82 86.39
0.0652 0.1309 0.1964 0.2618 0.3273 0.3927 0.4582 0.5236 0.5891 0.6546 0.7200 0.7854
0.8510 0.9160 0.9818 1.047 1.113 1.178 1.243 1.309 1.374 1.440 1.505 1.571 1.637 1.702 1.768 1.833 1.899 1.964
2.029 2.094 2.160 < 2.225 2.291 2.356 2.422 2.488 2.553 2.618 2.750 2.880 3.011 3.142 3.273 3.403 3.535 3.665 3.796
3.927 4.058 4.189 4.321 4.451 4.582 4.712 4.845 4.974 5.105 5.236 5.367 5.498 5.629. 5.760 5.891 6.021 6.153 6.283 6.415
6.545 6.676 6.807 6.938 7.069 7.199
28
28H 29
30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46. 47 48 49 50 51 52 53 S4 55 56 57 58 59 60 61 .
62 .63
64 65 66 67
68 69
70 71 72 73 74 75 76 77 78 79 80 81
82 83 84 85 86 87 88 '89 90 91
92 93
94 95 96 97 98 99
100
615.8 637.9 660.52 683.5 706.8 754.8 804.3 855.3 907.9 962.1 1018.0 1075.0 1134.0 1195.0 1256.0 1320.0 1385.0 1452.0 1521.0 1590.0 1662.0 1735.0 1810.0 1886.0 1963.0 2043.0 2124.0 2206.0 2290.0 2376.0 2463.0 2552.0 2642.0 2734.0 2827.0 2922.0 3019.0 3117.0 3217.0 3318.0 3421.0 3526.0 3632.0 3739.0 3848.0 3959.0 4072.0 4185.0 4301.0 4418.0 4536.0 4657.0 4778.0 4902.0 5027.0 5153.0 5281.0 5411.0 5542.0 5675.0 5809.0 5945.0 6082.0 6221.0 6362.0 6504.0 6648.0 6793.0 6940.0 7088.0 7238.0 7390.0 7543.0 7698.0 7854.0
4.276
87.97
4.430
89.54
4.S87
91.11
4.747
92.63
4.909
94.25
5.241
97.39
5.585
100.5
5.940
103.7
6.305
106.8
6.681
109.9
7.069
113.1
7.467
116.2
7.876
119.4
8.296
122.5
8.727
125.6
9.168, 128.8
9.621
131.9
10.08
135.1
10.56 . 138.2
11.04
141.4
11.54
144.5
12.05
147.7
12.51
150.8
13.09
153.9
13.64
1S7.1
14.19
160.2
14.75
163.4
15.32
166.5
15.90
*169.6
16.50
172.8
17.10 . 175.9
17.72
179.1
18.35
182.2
18.99
185.4
19.63
188.5
20.29
191.6
20.97
194.8
21.65
197.9
22.34
201.1
23.04
204.2
23.76
207.3
24.48
210.5
25.22
213.6
25.97
216.8
26.73
219.9
27.49
223.1
28.27 226.2
29.07
229.3
29.87
232.5
30.68
235.6
31.50
238.8
32.34
241.9
33.18
245.0
34.04
248.2
34.91
251.3
35.78
254.5
36.67
257.6
37.57
260.8
38.48
263.9
39.41
267.0
40.34
270.2
41.28
273.3
42.24
. 276.5
43.20
279.6
44.18
282.7
45.17
285.9
46.16
289.0
47.17
292.2
48.19
29S.3
49.22
298.4
50.27
301.6
51.32
304.7
52.38
307.9
53.46
311.0
54. S4
314.2
7.330 7.462 7.592 7.725 7.854 8.116 8.378 8.639. 8.901
9.163 9.425 9.686 9.948 10.21 10.47 10.73 10.99 11.26 11.52
11.78 12.04 12.30 12.57 12.83 11.09 13.35 13.61
13.88 14.14
14.40 14.66 14.92
15.18 15.45 IS.71 15.97 16.23 16.49 16.76 17.02 17.28 17.54
17.80 18.06 18.33 18.59 18.85 19.11
19.37 19.63 19.90 20.16 . 20.42 20.68 20.94 21.21 21.47 , 21.73 21.99
22.25 22.51
22.78 23.04 23.30 23.56 23.82 24.09 24.35 24.61
24.87 25.13 25.39 25.66 , 25.92 26.18
855