Document J3Mw1Xpzm0gQakR0ZXV7Bm4Ke

Heating Ventilating - Air Conditioning Guide 1951 Industrial {continued) exhaust systems, 539 Infiltration causes, 213 due to wind pressure, 213 heat losses, 248 latent. 249 'sensible, 248 temperature difference, 218 through outside doors, 217,248 through walls, 214. through windows, .214, 216 Inflammability, 168, 327 Inside temperature, 234, 258 Instruments, 1021 Insulation, 6,-589 economical pipe thickness, 601 parity furnace duct, 429 low temperature pipe, 598 pipe, 589 pipes to prevent freezing, 599 sound, 874 underground pipe, 603 ' Intermittently heated build ings, 251 Isobaric, 6 Isothermal, 6 J Joints, duct, 681 K Kata thermometer, 526, 1032 L Laboratories, 934 Latent heat, 5, 248, 619 loss, 248 Laws of thermodynamics, 9 Leaders, 429 Leakage of air, 213 door, 215, 217, 248, 301 window, 215, 216 light heat gain, 303 Lignite, 319, 320 Lint, 710 Liquid absorbents, 813 heat of, 5 lithium chloride, 813. Load cooling, 257, 620 * design, 6, 257 heating, 233, 621 maximum, 6, 374, 375 refrigeration, 257 M Machine vibration, 883 . Manometer, 6, 1{B5 . Marine {see skip heating, venti lating, air conditioning) Mass, 6 Maw and energy balance, 232 Mbh, 504 Mean radiant temperature, 125, 537-539, 541, 838 Meter, meters, 611 area, 611 condensate, 611 differential, 611 flow, 611 head, 612 Nicholls' heat, 1035 orifice, 81, 612 selection, 613 velocity, 612 .. ventun, 1030 Metering, liquids, 84, 611 . Micromanoraetera, 1026 Micron, 6 Mist. 158 Moist air, 25 saturation. 25 specific volume, 41 .Moisture, 930 content, 930, 965 loss per person, 120,128 permeability, 208 regain, 930 Mol, 6 Monofiuorotricbloromethane, 777, 781 Motor, motors, 251, 382, 839 adjustable speed, 845 adjustable voltage, 846 alternating current, 847 capacitor type, 852 classification, 842 compound wound, 845' constant speed, 845 control, 845 control equipment for, 845, 856,859 design limits, 840, 841 ' direct current, 844 electric, 839 ' enclosures, 863 gear, 858 glossary, 863 eat generated by, 251 multi-speed, 857 polyphase, 847 rating, 854, 658 repulsion induction, 853 selection, 839 series wound, 845 shunt wound, 844 single phase, 858 specifications. 860 speed characteristics, 848, 853 - - speed ranges, 841 split phase, 853 squirrel cage, 856 .- synchronous, 857' wound rotor, 856 N Natural draft, 393 towers, 735 Natural ventilation, 220 Noise, noises, 865 absorptive material, 874,-877, 879 air conditioning system; 866 - air supply opening, 879 apparatus for measuring, 866 controlling vibration, 883 cross transmission - between rooms, 882 design room level, 869 duct sound absorbers, 874 duct system attenuation, $73 fans. 870 general problem, 866 ' grille, 880 Noise (continued) kinds of. 868 levels, 869 loudness, 870 measurement, 866 plenum absorption, 879 ' through building construc tion, 883 transmitted - through ducts, 868 unit of measurement, 865 Nozzle flow, 81, 83 Nurseries for premature in fants, 146 air conditioning equipment, 148 air conditioning requirements, 147 o Odors. 117,119,153, 162, 937 human body, 117 OU. oils classification of, 321 combustion of, 326, 355. . estimating consumption, 423 - - OU burners, 351 boiler settings, 356 classification, 351 combustion adjustments, 356 combustion process, 355 controls, 358, 826. domestic, 351 ' furnace design, 357 gun type, 351 measurement of efficiency of combustion, 357 mechanical draft, 351 operating requirements, 355 rotary type, 352 vaporizing type, 353 One-pipe system. 459; 506 gravity air-vent, 480 not water, 501 steam, 6, 459 supply riser, 6 unit heater connection, 552 vapor, 462 Opening, openings . air supply noises, 879 stacks, 226 types of, 224 doors, 225 roof ventilators, 225- skylights, 225 '; windows, 225 Operating rooms. 144 conditions, 145 . reducing explosion hazard, 144 sterilization of air in, 146 Operative temperature, 837 Orifice . discharge, 81, 469, 507 ' flow, 81 formulas, 1029 heating systems, 468 Orsat apparatus, 1032 Outdoor air, 615, 9S6, 992 Outlet, outlets air supply noises, 879 . ceiling, 644 duct approaches, 647 location, 440, 645, 650 . performance 641, 645 XV111 Index to Technical Data Section Outlet, outlets (continued) Pipe, piping (continued) Radiation {continued) selection, 645 side outlets, 648 sizes (continued) sub-atmospheric systems, load, 374 shape factor, 101, 104 sound absorbers, 679 types, 643 wall outlets, 643 484 tables for. 478-482 two-pipe forced circulation, Radiator, radiators, 7, 519 Outside temperature, 235, 261 513 baseboard, 519, 521 * Overhead distribution, 609, 1015 two-pipegravity circulation, codes, 524, 1045 Overhead system, 6, 609 Oxygen chambers, 152 512 two-pipe riser, 476 two-pipe vapor systems, 482 concealed, 523 connections, 497, 498 correction factor, 525 tents, 152 therapy, 151 Ozone, 119 vacuum systems, 483 water supply systems, 997 steam distribution, 459, 605, 609 direct, 7 effect of paint, 526 ' enclosed, 528 gas-fired, 358 P steam heating systems, 459 supports, 577 heat emission of, 519 heating, 528 symbols for drawings, 17 heating effect, 526 Panel heating. 531 tax, 374, 375 output of, 519 calculation principles, 534, 539 thread connections, 577 panel, 6 electric, 534 hot water, 531 steam, 531 warm air, 533 threads, 577 tunnels, 609 underground insulation, 607 unit heater connections, 460, ratings, 524 . recessed, 7, 523 tube, 520 types of, 520 Panel radiator, 6 552 warm air, 360 Particle size chart, 159 water supply, 997 Percent of saturation, 49 Pitot tubes. 90, 1027 Perfect gas relationships, 27 Perforated ceilings, 644 Perforated outlets. 644 pH value, 897, 900 Plate cell, 878 Plenum absorbers, 879 . Plenum chamber, 6 Pneumatic control systems, 823 Rallwayair condldonlng.981 air cleaning, 982 air distribution, 982 humidity control, 984 ` Phon, 865 | Physical impurities in air, 119 Pollution of air, 157 summer systems, 982 temperature control, 984 ventilation, 982 - ii Physiological principles. 117 Pipe ooils, 522 heat emission, 522 wall, 523 '. Polyphase motors, 841, 842 Ponds, 733 ; Pontentiometer, 6 Power, 7 Precipitatois, 712, 719 winter systems, 981 Reciprocatingo ompressors, 706 Recooling, 615 Rectangular duct equivalents, - 659 V 5 Pipe, piping. 571 Pre-cooling, 625 Premature infant nurseries, 146 Reducing valves, 484, 608 Reflective insulation, 176, 186 - capacity, 474-481, 504, 997 - coatings, 912. coil connections, 498 * Pressure Refrigerant, refrigerants. 8, coil output, 522 absolute, 7 777 cold water, 997 atmospheric, 1 dichlorodifluoromethane, 777, l commercial dimensions, 573 gages, 1025 779 i conduits for, 607 connection to heating units, loss, water supply-piping, 9991002 feeds, 755, 756 monochlorodifluoromethane, . I 498 corrosion, 895 design, hot water system, 508 measurement, 1025 barometer, 1026 regulators, 484, 608, 824 777, 781 monofluorotrichloromethane, 777, 781 dimensions, 573 static, 7 pipe size ,805, 806 economical thickness insula taps, 89 water, 789 tion, 601 expansion, 576 total, 7 vapor, 7 fittings, 571 fitting equivalent, 474,502, 505 flexibility, 576 - forced circulation, 494 gravity, 493 hangers, 577 heat losses, 589' hot water heating systems, 501 velocity, 7 Prime surface {see Heeding Sur face), 9 Propeller fan, 691, 707 - Protective ooatings, 912 Psychrometer, 7. 53 Psychrometric chart, 130 Refrigeration, 775,982,986,993 absorption system, 791 air cycle, 788 ammonia; 806 . basic concepts, .775 complex cycles, 787 compressors, 796-798 inside dimensions, 572 condensers ' (see Condensers) 'I insulation prevent freezing, 599 leader sizes, 432 low temperature insulation, 598 Pump, pumps condensate return, 488 mechanical circulators, 501 vacuum heating, 488 799 control, 802-804 coolers, 801 . definitions, 775 discharge pressure, 785 materials, 571, 912 one-pipe forced circulation, 511 one-pipe gravity circulation, 511 controls, 489 piston displacement, 489 Pyrometer, 7, 1024 - optical, 1024 radiation, 1024 equipment selection, 796 evaporators, 801 expansion valves, 802 float valves, 803' heat pump, 793 overhead distribution, 464, ice systems, 792 609, 1015 ' load, 257 . sizes, 469, 473 R i| high pressure steam, 477 ' hot water forced circulation,' 511, 513 hot water gravity circula Radial flow fan, 691 Radiant-drying,- 972 mechanical, 775, 982,* 986.993 piping, 805 reverse cycle, 793 ship, 993 simple cycle, 780 tion, 511, 512 steam jet, 789 indirect heating units, 484 suction, 785 low pressure, 475 Radiant heating, {see Panel symbols for drawing, 17 maximum velocity, 473, 508 Heating) theory, 775 one pipe riser, 476 Radiation, 7 - ton of, 8, 775 orifice systems, 468 baseboard, 619, 521 - types of compressors {see Com pressure drop,-473,476-480 equation, 98 . . pressors), 796-708 XIX