Document JN8QDYx8Ow0XNqa8NboDGNy9B

Heating Ventilating Air Conditioning Guide 1938 Table 2. Properties of Carbon Dioxide Sat. Temp. F AB8 Press. Lb per Sq In. Volume Heat Content and Entropt Taken From -40 F Heat Content Entropy 50 F Superheat 100 F Superheat Liquid Vapor liquid Vapor liquid Vapor Ht. CL Entropy Ht CL Entropy 0 305.5 0.01570 0.29040 18.8 138.9 0.0418 0.3024 153.7 0.3342 167.5 0.3612 2 315.9 0.01579 0.28030 19.8 138. f 0.0441 0.3014 153.7 0.3330 167.6 0.3600 4 326.5 0.01588 0.2707C 20.8 138. S 0.0461 0.3005 153.7 0.3318 167.7 0.3588 5 332.0 0.01592 0.2661C 21.3 138.8 0.0472 0.3000 153.7 0.3312 167.7 0.3582 6 337.4 0.01596 0.2614C 21.8 138.7 0.0483 0.2994 153.7 0.3306 167.8 0.3576 8 348.7 0.01605 0.25260 22.9 138.7 0.0504 0.2982 153.7 0.3293 167.9 0.3563 10 360.2 0.01614 0.2437C 24.0 138.7 0.0526 0.2970 153.7 0.3281 168.0 0.3550 12 371.9 0.01623 0.2354C 25.0 138.6 0.0548 0.2958 153.7 0.3270 168.1 0.3538 14 383.9 0.01632 0.22740 26.1 138.6 0.0571 0.2946 153.7 0.3259 168.2 0.3526 16 396.2 0.01642 0.21970 27.2 138.5 0.0593 0.2933 153.7 0.3249 168.3 0.3513 18 408.9 0.01652 0.21210 28.3 138.4 0.0616 0.2921 153.7 0.3238 168.5 0.3501 20 421.8 0.01663 0.20490 29.4 138.3 0.0638 0.2909 153.7 0.3227 168.6 0.3489 22 434.0 0.01673 0.19790 30,5 138.2 0.0662 0.2897 153.7 0.3214 168.7 0.3479 24 448.4 0.01684 0.19120 31.7 138.1 0.0686 0.2885 153.7 0.3202 168.8 0.3470 26 462.2 0.01695 0.18460 32.9 138.C 0.0710 0.2873 153.7 0.3189 168.9 0.3460 28 476.3 0.01707 0.17830 34.1 137.9 0.0734 0.2861 153.7 0.3177 169.0 0.3451 30 490.8 0.01719 0.17220 35.4 137.8 0.0758 0.2849 153.7 0.3164 169.1 0.3441 32 505.5 0.01731 0.16630 36.7 137.7 0.0781 0.2834 153.7 0.3158 169.2 0.3431 34 522.6 0.01744 0.16030 37.9 137.4 0.0804 0.2820 153.7 0.3151 169.3 0.3421 36 536.0 0.01759 0.15500 39.1 137.2 0.0828 0.2805 153.7 0.3145 169.4 0.3411 38 551.7 0.01773 0.14960 40.4 136.9 0.0851 0.2791 153.7 0.3138 169.5 0.3401 39 559.7 0.01780 0.14700 41.0 136.8 0.0862 0.2783 153.7 0.3135 169.5 0.3396 40 567.8 0.01787 0.14440 41.7 136.7 0.0874 0.2776 153.7 0.3132 169.6 0.3391 41 576.0 0.01794 0.14185 42.3 136.5 0.0887 0.2768 153.7 0.3127 169.6 0.3386 42 584.3 0.01801 0.13930 42.9 136.3 0.0899 0.2761 153.7 0.3122 169.7 0.3381 44 601.1 0.01817 0,13440 44.3 136.1 0.0924 0.2745 153.7 0.3112 169.8 0.3371 46 618.2 0.01834 0.12970 45.6 135.7 0.0950 0.2730 153.7 0.3101 169.9 0.3362 48 635.7 0.01851 0.12500 47.0 135.4 0.0975 0.2714 153.7 0.3091 170.0 0.3352 50 653.6 0.01868 0.12050 48.4 135.0 0.1000 0.2699 153.7 0.3081 170.1 0.3342 52 671.9 0.01887 0.11610 49.8 134.5 0.1027 0.2681 153.7 0.3069 170.2 0.3333 54 690.6 0.01906 0.11170 51.2 133.9 0.1054 0.2663 153.7 0.3057 170.3 0.3324 56 709.5 0.01927 0.10750 52.6 133.4 0.1081 0.2644 153.7 0.3046 170.5 0.3315 58 728.8 0.01948 0.10340 54.0 132.7 0.1108 0.2626 153.7 0.3034 170.6 0.3306 60 748.6 0.01970 0.09940 55.5 132.1 0.1135 0.2608 153.7 0.3022 170.7 0.3297 62 769.0 0.01995 0.09545 57.0 131.3 0.1164 0.2584 153.7 0.3012 170.8 0.3289 64 789.4 0.02020 0.09180 58.6 130.6 0.1194 0.2560 153.7 0.3002 170,9 0.3281 66 810.3 0.02048 0.08800 60.2 129.7 0.1223 0.2535 153.7 0.2991 171.0 0.3273 68 831.6 0.02079 0.08422 61.9 128.7 0.1253 0.2511 153.7 0.2981 171.1 0.3265 70 853.4 0.02112 0.08040 63.7 127.5 0.1282 0.2487 153.7 0.2971 171.2 0.3257 72 875.8 0.02152 0.07654 65.5 126.0 0.1321 0.2450 153.7 0.2962 171.3 0.3250 74 898.2 0.02192 0.07269 67.3 124.5 0.1360 0.2414 153.7 0.2953 171.4 0.3242' 76 921.3 0.02242 0.06875 69.4 122.8 0.1398 0.2377 153.7 0.2945 171.5 0.3235 78 944.8 0.02300 0.06473 71.6 120.9 0.1437 0.2341 153.7 0.2936 171.6 0.3227 . 80 968.7 0.02370 0.06064 73.9 118.7 0.1476 0.2304 153.7 0.2927 171.7 0.3220 82 993.0 0.02456 0.05648 76.4 116.6 0.1578 0.2195 153.7 0.2920 173.8 0.3215 84 1017.7 0.02553 0.05223 79.4 113.9 0.1679 0.2087 153.7 0.2914 176.0 0.3209 86 1043.0 0.02686 0.04789 83.3 110.4 0.1781 0.1978 153.7 0.2907 178.2 0.3204 87.8 1069.9 0.03454 0.03454 97.0 97.0 0.1880 0.1880 153.7 0.2901 180.1 0.3199 38 Chapter 2. Refrigerants and Air Drying Agents Aluminum Oxide, (Alumina), in a porous, amorphous form is a solid Herbertt frequently called by the common name activated alumina, and mntainine small amounts of hydrated aluminum oxide, and very small mounts of soda, and various metallic oxides. A good grade of activated alumina will show 92 per cent of AhO?, and its soda content will be com bined with silica and alumina into an insoluble compound. This substance also has the property of adsorbing certain gases and certain vapors other i Fig. 1. Temperature--Vapor Pressure--Concentration Relation for a Silica Gel Bed at Constant Temperature than water vapor--a property which is sometimes useful in air condi tioning installations. It is available commercially in granules ranging from a fine powder to pieces approximately 1.5 in. in diameter. It has high adsorptive capacity per unit of weight, and is non-toxic. It may be repeatedly re-activated after becoming saturated with adsorbed moisture without practical loss of its adsorptive ability. In the grade frequently used for air drying the re-activation may be accomplished at temperatures under 350 F. Specific gravity is 3.25 and the pores are reported to occupy 58 per cent of the volume of each particle. For most estimating purposes 39 X