Document BRvVZBG58dLBrwKDjz9jZnLkX

Heating Ventilating Air Conditioning Guide 1949 Air Conditioning {continued) comfort^ S hospitals. 236. 237. 238. 239. 244, 245 humidity, table, 886 industrial, 885 atmospheric conditions re quired, 886 calculations, 892 general requirements, 885 typical applications, 888 owning and operating cost, 783 passenger bus in summer, 931 processes, 55 adiabatic mixing, 57, 59 adiabatic saturation, 59 cooling, 56 cooling load, 60 heating, 55 heating load, 63 railway passenger car, 927 ship, 937 stoker-fired units, 350 storage systems, 764 summer design conditions, 272, 275 temperature table, 886 transportation, 927 treatment of disease, 233 unit, 697 s Air cooler, 697, 707 units, 703 defrosting, 708 design, 707 performance, 707 ratings, 708' - types of, 708 Air requirements, 214, 239, 940 Air supply opening noises, 795, 849 Air velocity unit heaters, 547 Air washer, 1, 709 Airfoil'fan, 631 Aircraft air conditioning, 933 Allergic disorders, 243 apparatus, 243. asthma symptoms, 243 hay fever symptoms, 243 limitations of air conditioning methods, 244 Altitude, pressure and tempera ture, 70 Ammonia, 747, 748, 752 Anemometer, 1, 202 deflecting vane, 202 hot wire, 204 propeller, 202 revolving vane, 202 Anesthetics, 237 ` Anthracite coal,- 326, 328, 339 firing methods, 338 Apparatus dew-point,' 61, 861 Aspect ratio, 784, 786 Asthma symptoms, 243 'Atmosphere, standard, 70 Atmospheric . conditions for industrial proc- * esses, 886 cooling1 towers, 719 Atmospheric {continued) make-up water, 733 pressure, 1, 71 winter freezing, 733 Atomising humidifiers, 715 Atomizing oil burner, 357 Attenuation, 838, 842 ducts, 842 duct branches, 843 elbows, 842 grilles to room, 842 Attic fans, 644 location, 644 types, 644 temperature, 259 Automatic controls (see Control*), 447, 606, 663 purpose of, 663 types of, 663 . fuel burning equipment, 349 viscous filter, 649 Automobile air conditioning, 933 Axial flow fans. 631 B Baffle, 1,365 Bare pipe heat loss, 522, 580 Barometer, 198 Basement coefficients of transmission, 132 heat loss, 142, 261 temperatures,' 261 Bernoulli equation, 76 Biochemical reactions control of rate of, 891 Bituminous coal, 327 firing methods, 340 Blast neater, 2 Blow, 2 Body adaptation to hot conditions, 220,,221 heat loss, 216, 222, 223 odor, 213 thermal interchanges, 215, 222 Boiler, boilers, 373 capacity for unit heaters, 554 care, 386 cast-iron, 373 rJeaning steam, 386 combustion rates, 382 . connections, 384, 488 Hartford return, 489 return, 489 sizing, 489 steam, 489 construction, 373 design, 375 Boiler, boilers (continue<0 efficiency, 378 electric, 610 erection, 385 fittings, 384 . furnace design, 375 , gas-fired' 364 selection of, 384 gas-fired units, 364 conversions, 365 selection of, 366, 384 heating, 373 heating surfaoe, 2, 375 ' heat transfer rates, 375 horsepower, 2 hot water supply, 374, 610, 956 maintenance, 385 oil-fired units, 361 operation, 385 output, 377 rating, 380 rating codes, 376 selection of, 381 based on heating surface and grate area, 383 east-iron, 382 estimated design load, 380, 381 estimated maximum load, 381 gas-fired, 384 hot water supply load, 381, 955 piping tax, 381, 580 radiation load, 381 steel, 382 warming up allowance, 381 soot, 346 since limitations, 384 special heating, 374 steel, 374 stoker-fired units, 350 testing codes, 376 troubles, 385 British thermal units, 2 Bucket trap, 493 Building, buildings condensation, 143 heat transfer through sur faces, 115 infiltration, 161, 263 intermittently heated, 266 materials, heat transfer through, 115, 130, 262 multi-story, air leakage, 167 Burner, oil, 357. . Bus air conditioning, 931 By-pass, 2, 599, 861 c Calcium chloride, 735 Calculated heat loss -method, 417 Calorie, 2 Calorific value, 326, 329,- 332 Carbon -activated, 655, 929 # dioxide, 184, 209, 333, 335, 339, 367 Index to Technical Data Section Carbon (<continued) monoxide, 184, 188, 367 Cast-iron boilers, 373 Ceiling cooling unit, 708 high ,-258 outlets, 802, 804 perforated, 796 unit heater, 548 Central air conditioning systems 857 accessibility, 871 air quantity, 863 apparatus dew-point, 861 by-pass, 870 ' control, 858 cooling load, 271, 862 corrosion, 977, 978, 981' design procedure, 871 effective temperature differ ence, 863, 870 equipment arrangement, 857 equipment selection, 872 evaporative cooling, 867 fan system, 2 features, 857 heating load, 863 induction units, 865 high pressure type, 865 low pressure type, 866 location of apparatus, 870 outdoor air, 857 pre-oooling, 867 reheating, 859, 869 run-around, 868 selection, 8$8 sensible cooling, 867 zoning, 858 Centrifugal compressors, 766 condensing unit, 769 fan, 631 Chart . air flow and loudness, 851 area and weight of rectangular ducts, 830 canvas surface, 586 comfort, 226 compressor &nd coil perform ance, 780 computed static draft forshort chimneys, 409 correction for pipe roughness, 810 dehumidifier performance, 744 design temperature map, 256 economical thickness pipe in sulation, 592 effective temperature, 227 estimating surface tempera ture, fan characteristics, 635, 636 filter resistance, 652 friction air ducts, 748 friction in black iron pipes, 505, 950, 951 - Goff diagram, 52 beat emission - by radiation from panels, 624 beat toss coefficients, insulated ducts, 833 from body; 217, 218, 223, 224 insulated pipe, 583, 584, 585, 586 < Chart (continued) humidity, 912 insulation of cold pipe, 588 loss of pressure in elbows, 815 motor characteristics, 681, 686, 688, 689, 691 permissible relative humidi ties for various transmis sion coefficients, 144 psychrometric chart, persons at rest, 226 room absorption correction 852 sound attenuation, 848 static deflection, 855 system characteristics, 638 thickness pipe insulation pre vent sweating, 588 velocity and velocity head, 814 well water temperatures, 714 Chemical laboratory hoods, 902 reactions, 891 control of rate of,'891 vitiation of air, 179, 213 Chimney, chimneys, 399 construction details, 412 determining sizes, 402 domestic, 405 effect, 2 factors affecting draft, 405 gas beating, 409 general considerations for, 414 performance, 403, 408 static draft, 400 Cinders, 182 Circular equivalents of rec tangular ducts, 811 Circulators, 504, 514 Cleaning boilers, 386 Climatic conditions, 251, 275 Closed expansion tank, 516 sizing formula, 517 Coal, coals anthracite, 326 bituminous, 326 classification of, 325 dustless treatment, 328 estimating consumption, 417, 428 firing methods, 338, 340 lignite, 328 Codes, 987 installation, 987 rating, 987 testing, 987 ` Coefficients of transmission, .5, 101, 115, 151, 580 basement, 132 floor, 132 wall, 132 coils, 151, 959 doors, 142 floors and ceilings, 136, 142 frame construction, 130, 135 glass block walls, 142 / masonry partitions, 135 masonry walls, 134, 135 over-all, 116 formulas for calculating, 116, 128 roofs, 132,142 Coefficients of ' transmission (continued) skylights, 142 windows, 142 Coil, coils, 521, 529 air flow resistance, 537 applications, 535 arrangement, 530 construction, 530 _ cooling, 699 direct-expansion, 532 dry cooling, 151, 699, 867 flow arrangement, 534 heat emission, 537 heat transfer surfaoe, 151 performance, 151,153 cooling, 151 dehumidification, 153 heating, 151 selection, 539 cooling, 541 dehimndiifying, 541 heating, 540 steam, 531 water, 531 Coke classification of, 328 estimating consumption, 428 firing methods, 342 Cold therapy, 242 Color, piping systems, 22 Combustion, 325 air required, 334 analysis, 209, 334, 361, 363 chamber, 363 gas, 345, 366 heat of, 333 oil, 361 principles of, 333 rates, 369 smokeless, 341 . Comfort air conditioning, 2 air conditioning systems, 857, 942 chart, 228 line, 2 zone, 2 Commercial oil burners, 357 Compartment dryer, 916 Compressor, compressors, 766 centrifugal, 768 reciprocating, 766 refrigeration, performance of 766 rotary, 768 steam jet, 761 Condensates, 968 Condensate return pumps, 490 Condensation buildings, 143 interstitial, 147 return pumps, 490 ' surface, 143 Xlll