Document v1vdqJmN8MbDm351KYpLZNED8

Heating Ventilating Air Conditioning Guide 1951 Air Conditioning {continues) processes, 60 adiabatic mixing, 63 adiabatic saturation, 66 cooling, 61 heating, 60 railway passenger car, 981 ship, 990 stoker-fired units, 343 storage systems, 793 summer Hwrign conditions, 258, 259,261 temperature table, 258, 928 . ' transportation,, 981 treatment of disease, 137 unit, 559 Air cooler, 559 units, 559, 569 defrosting, 570 design, 569 performance, 569 ratings, 566 types of, 570 Air filters, 709 Air pollution, 160, 335, 940 control, 161, 940, Air requirements, 118, 983 Air supply opening noises, 643, 879 Air velocity, 440, 548, 631, 634 941, 946 cooling towers, 740 unit heaters, 548 Air washer, 1, 725 . Airborne infection, 138, 170 control, 138,170 Airfoil fan, 691 Aircraft air-conditioning, 987 .Allergic disorders, 150 apparatus, 150 asthma symptoms, 150 hay fever symptoms, 150 limitations of air conditioning methods, 151 Altitude, pressure and tempera ture, 69 . Anemometer. 1,1030 deflecting vane, 1030 propeller, 1030 ' revolving vane, 1030 .thermal, 1032 Anesthetics, 144 - Anthracite coal) 318, 319, 328, 333, 345, 350 filing methods, 333 Apparatus dew-point, 309, 619 Aspect ratio, 1, 632, 634 Asthma symptoms, 150 - Atmosphere, standard, 69 Atmospheric . conditions for industrial proc esses, 928 cooling towers, 735 make-up water, 749 winter freezing, 749 . - Atomising humidifiers, 729. Atomizing oil burner,- 351 Attenuation, 873*881 ducts, 873 duct branches, 874 elbows, 873 grilles, 873 - Att^c fans, 707 location, 70.7 types, 7U7 . temperature, 243 Automatic controls (see Controls), 448, 823 purpose of, 823 types of, 823 fuel burning equipment, 343 viscous filter, 711 Automobile air conditioning, 987 Axial flow fans, 691 B Baffle. 1, 358 Bare pipe heat loss, 522, 590 Barometer, 1026 Basement ,. coefficients of transmission, 198 .heat loss, 198, 245 temperatures, 246 Basementless houses, 246, 455 Bernoulli equation, 74 Biochemicalreactions - control of rate of, 932 Bituminous coal, 317, 328, 334 firing methods, 334 Blast heater, 2 Blow, 2, 548 Body adaptation to hot conditions, 124 ` heat loss, 119,126 odor, 118 thermal interchanges, 119,126 Boiler, boilers, 367 capacity for unit heaters, 554 care, 380 ' cast-iron, 367 cleaning steam, 380 combustion rates, 376 connections, 378, 486 Hartford return, 486 return, 486 sizing, 487 steam, 486 construction, 368design, 369 efficiency, 372 electric, 889 erection, 379 fittings, 378 furnace design, 369 gas-fired, 358, 378 selection of, 362 gas-fired units, 358 conversions, 358 selection of, 362 heating, 367 heating surface, 3, 369 heat transfer rates, 369 horsepower, 2 hot water supply,368,819, 1010 load,375 maintenance, 379. oil-fired units, 355 'operation, 379 -output,369 ' rating, 370, 374 . rating codes, 370,1041 ' selection of, 375 based on heating surface and grate area, 377 cast-iron, 376 estimated design load, 375' estimated maximum load 375 gas-fired, 378 not water supply load, 375, 1007 piping, tax, 375, 589 radiation load, 375 .. steel, 370, 374 . . warming up allowance, 374, 378 soot, 340 Xll Boilers (continued) apace limitations, 378 special heating, 368 steel, 368, 370 stoker-fired units, 344 testing codes, 370, 1041 troubles, 379 types, 367 British thermal, units, 2 Bucket trap, 490, 492 Building, buildings condensation, 205 heat transfer through surfaces 191-203 infiltration, 213, 218, 248 . intermittently heated, 251 materials, heat transfer through, 173,177,183, 186, 247 multi-story, air leakage, 218 Burner, oil, 351 Bus air conditioning, 98S By-pass, 2, 608, 616 c Calcium chloride, 627, 813, 818 Calculated heat loss method, 233 Calorie, 2 Calorific value) 318, 319,- 323, 324, 327 Carbon activated, 154, 717, 984 dioxide, 137, 164; 323, 324r332, 361 monoxide, 158, 164, 324, 327, 361 Cast-iron boilers, 367 . Ceiling cooling unit, 559 high, 241 outlets, 644 perforated, 644, 983 unit heater, 547 Central air condltioning sys- . terns,'615 accessibility, 629 air quantity, 621 - apparatus dew-point, 619 control, 617 cooling load, 257, 620 corrosion, 895 Hpwig-n procedure, 629 effectual temperature differ ence, 621 equipment arrangement, 616 equipment selection, 626 evaporative cooling, 623 fan system, 2 features. 615 heating load, 233, 621 individual room control, 618 induction units, 623 high pressure type, 624 ' low pressure type, 623 location of apparatus, 628 outdoor air, 620 pre-cooling, 625 reheating, 617 run-around, 626 selection, 626 sensible cooling, 625 storage capacity, 621 zoning, 616 Centrifugal compressors, 798 condensing unit, 798 fan, 691 . Charcoal, 162, 717 Index to Technical Data Section Chart air elimination, 471 . air flow and sound level, 877 ' air friction, 656, 657 chimney draft, 397, 398, 402 chimney flow, 403, 404 color, 22 comfort, 132,133 compressor and coil perform ance, 811 correction for pipe roughness, 659 debumidifier performance, 822 design temperature map, 240 disease frequency, 139,14.0 draft required, 394 dry vs. wet weight, 955 drying time, 956, 957 drying weight, 956 dust particle size,.159 economical thickness pipe in sulation, 602 effective diameter, 638 effective temperature, 131, 133 . entrainment ratio, 635, 637 estimating surface tempera ture, 204, 539 expansion factor, 87, 88 evaporation chart, 969 fan characteristics, 696-698 fan sound level, 871-873filter resistance, 714 firebox dimensions, 350 . flow due to wind, 223 . flow through opening, 222 ' flow coefficients, 85, 86 flue area, 229, 407, 408 flue loss, 332, 333 friction air ducts,'656, 657 friction factor, 77 friction in pipes, 503,505, 1000- 1002. fuel consumption, 364 head due to temperature, 502 beat emission by radiation from panels, 534 beat endurance, 125 beat loss body, 121, 122, 126, 127, 128 canvas surface, 596 coefficients, insulated ducts, 686 floor. 247 insulated pipe, 593-596 humidity, 966 infiltration, 215 insulation of cold pipe, 598 Langelier formula, 904 loss of pressure in elbows, 664 moisture loss from body, 128 motor characteristics, 844-852 MRT elevation, 125 orifice coefficient, 83 - orifice installation, 89 permissible relative humidi ties for various transmis sion coefficients, 207 psychrometric charts, 57,967 persons at rest, 130 . pressure loss in metere, 1003 pressure loss in faucets, 1003 . pump performance, 512 radiation between black' bodies, 105 radiation shape factor, 104 refrigerant pressure-enthalpy 778 refrigeration horsepower, 925 room absorption correction, ' 883 solubility of calcium' salts, ' 901, 902 solubility of gases, 900 - sound attenuation, 877 static deflection, 885 system characteristics, 699 thickness pipe insulation pre vent sweating, 598 velocity and velocity head, 663 Chart (continued) vena contractor location, 91 viseoeity, air, 75 viscosity, water, 76 well water temperatures, 734 Chemical laboratory hoods, 946 ' reactions, .932 control of rate of, 932 - vitiation of air, 117,163 Chimney, chimneys, 393 available draft, 395, 401 construction details, 409 determining sizes, 398, 404 domestic, 399, 402. effect, 2 factors affecting draft, 394 gas heating, 406 general considerations for, 411 industrial, 395 performance, 405 static draft, 393 theoretical draft, 393 Cinders, 156 - Circular equivalents of rectan gular ducts, 660 - Circulators, 512 Cleaning boilers, 380 Climatic conditions, 235, 261 .Closed expansion tank,.514 sizing formula, 515 Coal, coals anthracite, 317 bituminous, 317 classification of, 319 dustless treatment, 320 estimating consumption, 413 firing methods, 333, 334 lignite. 318 Codes, 1041 .installation, 1041 rating, 1041... - testing, 1041. Coefficients of transmission, 5,106,173,186,590,765 basement, 198 floor, 198 wall, 198 v* coils, 590, 765 doors, 203 floors and ceilings, 196,-197 frame construction, 191, 195 glass, 203 glass block walls, 203 masonry partitions, 195masonry walls, 193, 194 . overall, 188 formulas for calculating, 188 roofs, 188, 200, 201, 202 sltylights, 203 windows, 203 Coll, coils. 751 air flow resistance, 763 applications, 757 arrangement, 752 construction, 752. cooling, 762 dehumidifying, 761 direct-expansion, 754 dry cooling, 561, 625, 765 flow arrangement, 756 heat emission, 590 heat transfer surface, 763 heating, 760 performance. 765 oooling{ 765 dehumidification, 765 heating, 765 ' rating, 761 selection*, 759 cooling, 761 dehumidifying, 761 heating, 760 - steam, 753 xni - Coil, Colls (continues) uses; 751 water, 754 - Coke classification of, 320 estimating consumption, 424 firing methods, 336 Cold therapy, 149 Color, piping systems, 22 Combustion, 317 adjustments, 348, 356, 361 air required, 328 analysis, 328, 329 - chamber, 350, 357 gas, 339 heat balance, 330 - heat of, 326 losses, 330 oU, 355 principles of, 326 rates, 363 smokeless, 335 Comfort air conditioning,. 2 . air conditioning systems, 615, 981 chart. 132 line, 2 zone, 2 Commercial oil burners, 351 Compartment dryer, 974 Compressor, compressors. 796 centrifugal, 798 reciprocating, 796 refrigeration, performance of, 808 rotary, 798 Condensates, 898 Condensate return pumps, 488 - Condensa Hon buildings, 205 interstitial, 206 . surface, 205 Condensers. 799 air cooled, 799 design data, 748, 753 evaporative, 800 water cooled, 799 Condition line, 58, 309, 619 Conductance, 3, 173, 174) 176' air space, 176 building materials, 181, 186 insulators, 181, 186 soil. 175 surface, 182, 183 Conduction, 3, 95 drying methods, 973 electric heaters,.887 equation, 96 steady-state solutions, 107- Conductlvity, 3) 97,175 - bat type insulation, 179,186 building boards, 177 building materials, 177, 186 ' homogeneous materials. 175 insulating materials, 178*181, 186,592 insulation blankets, 179 insulators, 179-181, 186, 592 .' . loose-fill insulation, 180, 181, 186 . masonry materials, 177,-186 -