Document RJG6GgVKx82RxGovpjYJvmXKV

American Society of Heating and Ventilating Engineers Guide, 1930 Table 1. Properties of Saturated Steam (Continued) Absolute Pressure, Lb. per Sq. In. Tem perature , Deo. Fahb. Volume, Cu. Tr. peb Lb. J> t f" Weight, Lb. per Cu. Ft.- 1 Seat Content in B.t.u. of of Liquid Vapor Latent Heat in B.t.u. I of Vapor In ization ternal i/" i' i" | r P Entoopt of of Vapor Liquid ization i' r/T Of Vapor " 120 122 124 126 128 130 132 134 136 138 140 142 144 146 148 150 . 152 154 156 156 160 162 164 . 166 168 170 172 174 : 176 178; ,180 182 184 186 188 190 192 194 196 198 200 202 204 206 208 210 212 214 216 218 220 341.3 542.5 343.7 345.0 346.2 347.4 348. S 349.7 350.8 352.0 353.1 354.2 355.3 356.3 357.4 358.5 359.5 360.5 361.6 362.6 363.6 364.6 365.6 366.5 367. S 368.5 369.4 370.4 371.3 372.2 373.1 374.0 374.9 375.8 376.7 377.6 378.5 379.3 380.2 381.0 381.9 382.7 383.5 384.4 385.2 386.0 386.8 387.6 388.4 389.2 390.0 3.735 3.676 3.620 3.566 3.513 3.461 3.412 3.363 3.316 3.270 3.226 3.182 3.140 3.099 3.059 3.020 2.982 2.945 2.909 2.874 2.839 2.806 2.773 2.741 2.710 2.679 2.649 2.620 2.591 2.563 2.536 2.509 2.483 2.457 2.432 2.408 2.383 2.360 2.337 2.314 2.292 2.270 2.248 2.227 2.206 2.186 2.166 2.147 2.128 2.109 2.090 0.2678 311.9 0.2720 313.2 0.2762 314.4 0.2805 315.7 0.2847 316.9 0.2889 318:2 0.2931 319.4 0.2973 320.6 0.3016 321.8 0.3058 323.0 0.3100 324.2 0.3142 325.3 0.3184 326.5 0.3227 327.6 0.3269 328.7 0.3311 329.8 0.3353 330.9 0.3396 332.0 0.3438 333.1 0.3480 334.1 0.3522 335.2 0.3564 336.2 0.3606 337.3 0.3648 338.3 0.3691 339.3 0.3733 340.3 0.3775 341.3 0.3817 342.3 0.3859 343.3 0.3901 344.3 0.3943 345.2 0.398S 346.2 0.4027 347.1 0.4069 348.1 0.4111 349.0 0.4154 350.0 0.4196 350.9 0.4238 351.8 0.4280 352.7 0.4322 353.6 0.4364 354.5 0.4406 355.4 0.4448 356.2 0.4490 357.1 0.4532 358.0 0.457 358.8 0.462 359.7 0.466 360.5 0.470 n 361.4 0.474 t 362.2 0.478 J 363.0 1191.4 1 879.5 1191.6 | 878.5 1191.9 I 877.5 1192.1 1 876.4 1192.4 fl . 875.4 1192.6 H 874.4 1192.9 873,5 1193.1 1 872.5 1193.3 871 ;5 1193.5 870.5 1193.7 869.6 1193.9 868.6 1194.1 867.7 1194.3 866.8 1194.5 865.8 1194.7 864.9 1194.9 864.0 1195.1 1195.3 863.1 862.3 1195.5 861.4 1195.7 860.5 1195.8 859.6 1196.0 858.7 1196.2 , 857.9 1196.3 ' 857.0 1196.5 856.2 1196.6 855.3 1196.8 H96.9 1197.1 854.5 853.6 852.8 1197.2 1197.4 1197.5 852.0 851.2 850.4 1197.6 1197.8 1197.9 1198.0 849.5 848.7 847.9 847.1 1198.1 846.3 1198.2 1198.4 845.6 844.8 1198.5 844.0 1198.6 843.2 1198.7 842.5 1198.8 841.7 1198.9 840.9 1199.0 840.2 1199.1 . 839.4 1199.2 838.7 1199.3 1199.4 837.9 837.2 1199.5 836.5 796.9 0.4911 795.8 0.4927 794.8 0.4943 793.7 0.4958 792.6 0.4974 791.6 0.4989 790. S 0.5004 789.5 0.5019 788.5 0.5033 787.4 0.5048 786.4 0.5062 785.4 0.5076 784.5 0.5090 783.5 0.5104 782.5 0.5117 781.6 0.5131 780.6 0.5144 779.7 0.5157 778.7 0.5170 777.8 0.5183 776.9 0.5196 776.0 0.5209 775.1 0.5221 774; 2 Q.5233 773.3 0.5245 772.4 0.5258 771.5 0.5270 770.6 0.5281 769.8 0.5293 768.9 0.5305 768.0 0.5316 767.2 0.5238 766.4 0.5339 765.5 0.5350 764.7 0.S361 763.9 0,5372 763.0 0.5383 762.2 0.5394 761.4 0.5404 760.6 0.5415 759.8 0.5426 759.0 0.5436 758.2 0.5446 757.4 0.5457 756.7 0.5467 755.9 O.S477 755.1 0.5487 754.3 0.5497 753.6 0.5507 752.8 0.5516 752.1 0.5526 1.0982 1.0952 1.0922 1.0894 1.0865 1.0836 1.0808 1.0781 2.0754 1.0727 1.0700 1.0674 1.0648 1.0623 1.0598 1.0573 1.0548 1.0524 1.0500 1.0476 1.0453 1.0429 1.0406 1.0384 1.0361 1.0339 1.0317 1.0295 1.0274 1.0252 1.0231 1.0210 1.0189 1.0169 1.0148 1.0128 1.0108 1.0089 1.0069 1.0049 1.0030 1.0011 0.9992 0.9973 0.9954 0.9936 0.9918 0.9900 0.9881 0.9864 0.9846 1.5893 1.5879 1.5865 1.5852 1.5838 1.5825 1.S812 1.5800 1.5787 1.5775 1.5762 1.5750 . 1.5738 1.5727 1.5715 1.5704 1-5692 1.5681 1.5670 1.5659 1.5649 1.5638 1.5627 1.5617 1.5607 1.5597 1.5587 1-5577 1.5567 1.5557 1.5547 - 1.5538 1.5528 * 1.5519 1.5509 - 1.5500 1.5491 1.5482 1.5473 1.5464 1.5456 1.54471 . 1.5438 1.5430 1.5421 - 1.5413 1.5405 1.5396 1.5388 1.5380 1.5372 This table is abstracted from Properties of Steam and Ammonia by Prof. G. A. Goodencrugh. 491.6 cu. ft. of gas measured at 32 deg. fahr. is cooled 20 deg. fahr., at' constant pressure the new volume will be 471.6 cu. ft. It is only necessary to add (491.6 -- 32) or 459.6 to the actual ther mometer reading to get the absolute temperature, that is, T = t + 459.6, where T -- absolute temperature, and t -- actual thermometer reading on the Fahrenheit scale. For engineering work-460 deg. is used rather than 459.6 deg. For the Centigrade scale the relation is T = t 4- 273.1. 516 Chapter 33--Physical Units, Weights, Measures and Tables Table 2. Velocities of Dry Air (At Various Temperatures) Corresponding to Various Velocity Pressures in Ounces per Square Inch Pressure Ounces Inches 50 60 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 0.1734 0.3468 0.5202 0.6936 0.8670 1.0400 1.2140 1.3870 1.5605 1.7340 1.9073 2.0808 2.2540 2.4275 2.6010 2.7742 3,1210 3.4680 3.8145. 4.1615 4.5080 4.8550 5.2020 1635 2313 2833 1653 2338 2864 3272 3658 4007 3307 3698 4051 4329 4626 4907 4375 4677 4960 5172 5426 5664 5229 5485 5725 5896 6120 6335 '5960 6186 6404 6543 : 6614 6942 7017 7315 7395 7672 8012 8338 7755 8099 8429 8654 8960 8748 9057 70" 1667 2358 2888 3335 3729 4085 4412 4716 5002 5273 5531 5774 6011 6238 6457 6670 7076 7457 7820 8168 8500 8822 9134 Temperature, Deo. Fahr. 80" 100" 150 200" 1683 2380 2915 3367 3765 4124 4454 4761 5050 5323 5584 5828 6068 6297 6520 6734 7143 7528 7894 8245 8581 8906 9220 1714 2424 2969 1788 2530 3098 3428 3833 4199 3578 4000 4382 4535 4848 5142 4733' 5059 5366 5420 5685 5935 5656 5933 6194 6179 6412 . 6638 6448 6691 6928. 6856 7274 7665 7155 7591 8000 8038 8396 8737 8462 8762 9118 9068 9388 9464 9798 1860 2632 3223 3722 4162 4559 4924 5263 5582 5884 6172 6443 6708 6962 7207 7444 7897 8322 8727 9115 9486 9845 10193 From Fan Enqineerinq, published by The Buffalo Forge Company. 300" 1996 2824 3458 3994 4466 4892 5283 5647 5990 6314 6623 6914 7198 7470 7733 7987 8473 8930 9364 9781 10179 10564 10938 500" 2244 3174 3887 4489 5019 5498 5938 6347 6733 7098 7444 7772 8090 8396 8692 8977 9524 10037 10525 10995 11440 11873 12293 550" 2410 3405 4175 4850 5395 5900 6380 6820 7250 7625 8000 8350 8700 9020 9345 96S0 10220 10780 11300 11800 12280 12750 13200 Asnes........... ........ .................... A' p |. Table 3. Weights of Materials Pounds per Cubic Foot ............ ....... ______ _ 37-40 90-118 17-27 95-169 50-54 53-60 26-30 75-115 90 -135 Pounds per Cubic Foot 31 -47 Lime.......... ......................-- limestone---- ----------------- Oats Ore.. Rye. Sand................. ................... ___ .. ........... ........... ............. . ........ 50-80 90 -110 28-31 105-215 44-SO 75-120 Slag (blast-furnace).......... Stone _____...... Wheat..... -......................... .................................. 90-120 ^ Table 4. Lineal Expansion of Solids at Ordinary Temperatures (Tabular values represent increase per foot per 100 deg. increase in temperature, Fahrenheit) Substance Temp. Coefficient fi Conditions b per 100 1 Deg. Fahb. Deg. Fahb..| Substance Temp. Coefficient Conditions b PER 100 Dbg. Fahr. Deg. Fahr. Brass (cast).................. -----......... 32 to 212 Brass (wire)---------------- ---- ------ ' 32 to 212 Copper------------.----- -------- --.... 32 to 212 Glass (English flint). - . --.... 32 to 212 Granite (average)--................. 32 to 212 Iron (cast)---------------------- ------- 104 Iron (soft forged)..-................. .. Oto 212 Iron (wire)------------------------- 32 to 212 0.001042 0.001072 0.000926 0.000451 0.000482 0.000589 0.000634 0.000800 Lead......... .................................. Mercury........... ........................ LimestoneSteel (Bessemer rolled, hard).... 8teel (Bessemer rolled, soft)..... Steel (cast, French).--.............. Steel (castannealed, English)--. 32 to 212 32 to 212 32 to 212 Oto 212 Oto 212 104 104 0.001505 0.009984 0.000139 0.00056 ,, 0.00063 0.000734 0.000608 From Mechanical Equipment of Buildinqe, Vol. 1, by Harding and Willard, revised edition, 1929. bWhere range of temperature is given, coefficient is mean over range. cCoefficient of cubical expansion. 517