Document 5DO8738GdBebYbo2g7L89DZwz

American Society of Heating and Ventilating Engineers Guide, 1932 gas, and may be stated as follows: With temperature constant, the volume of a given weight of gas varies inversely as its absolute pressure. Hence, if Pi and Pi represent the initial and final absolute pressures, and Vi and Fj represent corresponding volumes of the same mass, say one pound of Temperatube, Deo. Fahr. Table 7. Properties of Dry Air* Barometric Pressure 29321 In. Weight per Cubic Foot, Pound Ratio or Volume to Volume at 70 Deo. Fahb. B.t.u. Absorbed bt 1 Cu. Ft. Dht Am per Deg. Fa hr. Cubic Feet Drt Am Warmed l Del pee B.t.u. -50 -45 -40 -35 --30 -25 -20 -15 -10 -5 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110' 115 120 125 ` 130 135 140 145 150 160 170 180 190 200 220 240 260 280 300 350 * 400 450 500 550 600 ' 700 800 900 1000 1200 0.09690 0.09573 0.09459 0.09348 0.09239 0.09133 0.09029 0.08927 0.08828 0.08731 0.08636 0.08544 0.08453 0.08363 0.08276 0.08190 0.08107 0.08025 0.07945 0.07866 0.07788 0.07713 0.07640 0.07567 0.07495 0.07424 0.07356 0.07289 0.07222 0.07157 0.07093 0.07030 0.06968 0.06908 0.06848 0.06790 0.06732 : 0.06675 : 0.06620 0.06565 Q.06510 0.06406 . 0.06304 0.06205 0.06110 0.06018 0.05840 0.05673 ' 0.05516 ; 0.05367 0.05225 0.04903 0.04618 0.04364 : 0.04138 0.03932 0.03746 0.03423 0.03151 0.02920 0.02720 0.02392 0.7735 0.7829 0J7924 . 0.8018 0.8112 0.8206 0.8301 0.8396 0.8490 0.8585 0.8680 0.8772 0.8867 0.8962 0.9057 0.9152 0.9246 0.9340 0.9434 0.9530 0.9624 0.9718 0.9811 0.9905 1.0000 1.0095 1.0190 1.0283 1,0380 1.0472 1.0570 1.0660 . 1.0756 1.0850 1.0945 1.1040 1.1133. . 1.1230 1.1320 1.1417 1.1512 1.1700 1.1890 1.2080 1.2270 . 1.2455 1.2833 1.3212 1.3590 1.3967 1.4345 1.5288 1.6230 > 1.7177' 1.8113- 1.9060 2.0Q10 2.1900 t 2.3785 2.5670 2.7560 3.1655 i i r 0.02335 0.02307 0.02280 0.02253 0:02226 0.02201 0.02176 0.02151 0.02127 0.02104 0.02080 0.02060 0.02039 0.02018 0.01998 0.01977 0.01957 0.01938 0.01919 0.01900 0.01881 0.01863 0.01846 0.01829 0.01812 0.01795 0.01779 0.01763 0.01747 0.01732 0.01716 0.01702 0.01687 . 0.01673 0.01659 0.01645 0.01631 - i 0.01618 0.01605 0.01592 0.01578 0.01554 0.01530 0.01506 v 0.01484 0.01462 0.01419 0.01380 0.01343 0.01308 0.01274 0.01197 0.01130 0.01070 0.01018 0.00967 0.00923 , 0.00847 0.00782 0.00728 0.00680 0.00603 42.82 43.87 44.39 44:91 45.43 45.96 46.48 47.00 47.52 48.08 48.55 49.56 50.OS 50.58 51.60 52.64 53.68 54.18 54.68 55.19 55.72 56.21 56.72 57.25 57.74 58128 59128 60.28 60.79 61.32 61.81 62.31 63:37 64.35, 65.36 67:40 68.41 70.48 72.46 74.46 78.50 83155 88:50 93.46 103.42 108.35 118.07 127.88 137.37 147.07 165.83 From Mechanical Equipment of Buildinge, VoL 1, by Harding and Willard, second edition. 1929. ' 542 1 Chapter 39--Physical Data Table 8. Properties of Saturated AiRa (Standard Atmospheric Pressure of 29321 in. of Mercury) Tem perature, Deo. Fahr. Vapor Pressure, Inches op Mbrcurt * Weight per Cubic Foot op Mixture Weight of Weight of Vapor, Total Weight of Dry Air, Pound Pound Mixture, Pound Btu Absorbed bt 1 Cu. Ft. Saturated Am per Deo. Fahb. Cubic Feet Saturated Am Warmed 1 Deo. per Btu 0 0.0383 10 0.0631 20 0.1030 30 0.1640 40 0.2477 50 0.3625 60 0.5220 70 0.7390 80 1.0290 90 1.4170 . 100 1.9260 110 2.5890 120 3.4380 130 4.5200 140 5.8800 150 7.5700 160 9.6500 170 12.2000 180 15.2900 190 19.0200 200 23.4700 0.08625 0.08433 0.08247 0.08063 0.07880 0.07694 0.07506 0.07310 0.07095 0.06881 0.06637 0.06367 0.06062 0.05716 0.05319 0.04864 0.04341 0.03735 0.03035 0.02227 0.01297 0.000069 0.000111 0.000177 0.000276 0.000409 0.000587 0.000829 0.001152 0.001576 0.002132 0.002848 0.003763 0.004914 0.006357 0.008140 0.010310 0.012956 0.016140 0.019940 0.024465 0.029780 0.08632 0.08444 0.08265 0.08091 0.07921 0.07753 0.07589 0.07425 0.07253 0.07094 0.06922 . 0.06743 0.06553 0.06352 0.06133 0.05894 0.05637 0.05349 0.05029 0.04674 0.04275 0.02082 0.02039 0.01998 0.01955 0.01921 0.01883 0.01852 0.01811 0.01788 0.01763 0.01737 0.01716 0.01696 0.01681 0.01669 0.01663 0.01664 0.01671 0.01682 0.01706 0.01750 48.04 49.05 50.05 51.15 52.06 53.11 54.00 55.22 55.93 56.72 57.57 58.27 58.96 59.50 59.92 60.14 60.10 59.85 59.45 58.80 57.15 From Fan Engineering. Table 9. Specific Heat of Various Solids and Liquids BETWEEN 32 AND 212 DEG. FaHRA SOLIDS Alloys: Bismuth-tin________ _0.040-0.045 D'Arcet's metal........ _____ 0.050 ft 040 ft 100 Roee's metaL_ . 0.050 Solders (Pband Sn)_ _0 040-0.045 j 0.0388 Wood's metal-- *__ _____ 0.040 40 Pb + 60 Bi______ ______0.0317 25 Pb + 75 Bi.. 0.030 Asbestos_____________ _____ 0.20 0.20 Borax-.. 0.229 Chalk____________ 0.703 0.215 0.20 0.18 Cork___________ Corundum. 0.485 0.198 0.222 0.33 80LIDS Glass: 0.199 0.16 0.12 0.18 0.195 0.201 0.2.50 0.193 Humus (soil)____________ ____ 0.44 0.504 India rubber (Para)_____ 0.27-0.48 0.224 0.217 0.210 Oxides: 0.18.3 Lead oxide (PbO)__ -- _____ 0.055 0 13* 0.222 Magnetite (FesO)--------_____0.168 Silica___ 0.191 0.7.31 Zinc oxide (ZnO) 0.125 ____L 0.69 O 77 0.17-0.28 Salt mrt 0.217 0.21 Sand. . __ 0.195 0.22 T*1 0 180 0.209 Tufa SOLIDS Wood: Fir Oak______________ Pine.__ ,,____0.67 . ft..3.3 0..3.3I 0.63 0.57 L1QUID8 Acetic acid......................................0.51 0.58 Aniline 0.49 0.40 0.23 0.54 0.56 0.50 0.576 0.60 0.50 0,31 0.40 0.033 0.40 Paraffin nil 0.52 0.498 0.336 0.94 0.40 0.42 Molten metals: 0.036 (300-680 F3 0.041 Sulphur (246-297 F)_________ 0.235 Tin (460-660 F) 0.058 From Marks' Mechanical Engineers' Handbook. 543