Document wJyYzGMOmrb92moGR5GZqGn4

HEATING VENTILATING AIR CONDITIONING GUIDE 1941 Table (continued) infiltration through windows, 104 minimum outdoor air requirements to remove odors, 39 pressure loss through water disc meters, 775 pressure losses in refrigerant line, 462 properties of ammonia, 444 properties of carbon dioxide, 448 properties of dicholorodifiuoromethane, 446 properties of gaseous fuels, 162 properties of methyl chloride. 447 properties of monofiuorotrichloromethane, 450 properties of saturated steam, 24 properties of water, 450 radiating surface per linear foot of copper tubing, 732 radiating surface per linear foot of pipe, 732 recommended chimney sizes, 176 recommended sheet metal gages for ducts, 587 regain of hygroscopic materials, 678 relation between metabolic rate and activity, 49 requirements for fuel oil, 160 return pipe capacities, 276 solar radiation, 128 specific heat of solids, liquids, gases, 807 steam pipe capacities, 275 temperatures and humidities for industrial pro cessing, 674 theoretical air requirements, 147 thermodynamic properties of moist air, 10 toxicity of gases and fumes, 529 typical noise levels, 593 weight of saturated air, 26 Tank, tanks expansion, 305 hot water storage. 784 Temperature, temperatures absolute, 4, 791 automatic control, 322 average effective coil, 490 British equivalent, 761 ' control'for railway passenger cars, 668 design wet-bulb, 512 dew-point, 20 dry-bulb, 793 drying, 702 effective, 113, 793 globe, 768 hazards in treatment of disease, 660 humidity, railway cars, 668 inside, 113 attic, 113 ceilings, high, 114 at floor level, 115 at proper level, 113 low, insulation. 741 mean radiant, 764 measurement, 627 thermocouple, 628 thermometers, 627 outside, 115 relation of air, and wall, 63 thermodynamic wet-bulb, 21 water main, 509 wet-bulb, 798 Terminology, 791 Test methods, 627 Therapy cold, 660 fever, 659 oxygen, 662 Thermal conductance, 70 conductivity, 70 Table (continued) interchanges of body, 41 resistance, 797 resistivity, 797 transmittance, 70 Therm, 797 Thermocouple. 628 Thermodynamic of air and water mixture, 1 laws of, 795 wet-bulb temperature, 21 Thermometers, 627 alcohol, 627 dry-bulb, 68 globe, 68, 637, 768 Kata, 68. 633 mercurial, 627 resistance, 629 stem correction, 628 Thermostat, 606,797 elements, 604 room, 606 Thermostatic trap, 265 Tilting trap, 266 Time lag through walls and roofs, 133 Ton day of refrigeration, 797 Ton of refrigeration, 797 Total heat, 797 (see Enthalpy) Total pressure, 797 Tower, towers cooling, design, 516 cooling, performance, 522 mechanical draft, 516 natural draft, 515 spray cooling, 515 Transmission coefficient, 792 normal heat, 127 solar heat, 127 Transmittance, 70 Transportation air conditioning, 665 Trap, traps, 265 automatic return, 266 bucket, 265 float, 265 impulse trap, 266 steam, 797 thermostatic, 266 tilting, 266 Treatment of disease, 653 Tube radiator, 797 Tunnel drier, 698 U Ultra-violet light, 40, 530, 656 Underfeed stoker, 797 Unit, units, 797 air conditioners, 407 application, 416 cooling, 409 costs, 423 dehumidifying, 409 filtering, 410 heating, 408 humidifying, 408 ratings, 420 types of, 411 ventilating, 410 British thermal, 791 xxu ALPHABETICAL INDEX TO TECHNICAL DATA SECTION Unit (continued) cooling, 420 defrosting, 422 features of, 421 ratings, 422 types of, 421 direct-indirect heating, 793 fuel consumptions, 212 heaters, 390 application, 397 boiler capacity, 393 direct-fired, 399 electric, 399, 751 features, 390 piping connections, 393 ratings, 392 turbine-driven, 399 types of, 391 humidifiers, 405 types of, 405 of noise measurement, 591 systems, 619 ventilators, 399 applications, 403 functions and features, 400 ratings, 400 specifications, 399 window, 404 viscous type filters, 537 Unitary equipment, 389 definitions, 390 V Vacuum drying, 698 / heating pumps, 262 control. 263 piston displacement, 264 heating systems, 256, 797 down-feed, 258 Valve, valves, 339 angle, 341 automatic, 340 check, 340 control, 283 expansion, 456 gate, 340 globe, 340 reducing pressure, 340 Vapor heating system, 798 pressure, 798 Velocity, 798 pressure, 798 Ventilation, 798 dairy bam, 725 garage, 725 ' natural, 717 general rules, 723 passenger bus in summer, 669 physiological objectives of, 60 railway passenger car, 665 symbols for drawing, 806 wind forces, 717 Ventilator, ventilators roof. 719. 796 unit, 399 control, 620 Vertical openings, 108 sealing of, 108 Vibration from machine mountings, 595 Viscous filters, 536 automatic, 538 impingement, 536 unit type, 537 Volume fan control, 553 furnace, 159 specific, 796 W Wall, walls heat flow through, 131 infiltration through, 102 time lag of solar radiation, 133 Warm air heating-systems, 345, 359, 798 panel heating, 762 radiant heating, 762 Washer, washers, 501 air. 791 Water atmospheric cooling equipment, 507 coils, 476 cooled condenser, 458 heaters, 785 heating, 769 by electricity, 755 make-up, 523 maximum, main temperature, 509 properties of, 450 supply piping, 769 flow from fixture, 771 horizontal supply mains, 776 maximum probable flow, 770 overhead distribution mains, 776 pipe, 773 sizing down-feed risers, 773 sizing, up-feed risers, 774 thermodynamics of, 1 well, temperatures, 508 Water vapor, 6 saturation pressure, 6 specific enthalpy, 7 specific volume, 6 Welding, 323, 334 Wet-bulb temperature, 512,798 (see Temperature) Wet return, 798 Wind, winds forces, 717 due to stack effect, 718 on natural draft equipment, 515 selection of, velocity, 106 velocity effects, 115 Window, windows coefficient of transmission, 97 leakage, 105 for natural ventilation, 719 solar radiation through, 133 ventilators, 404 Winter comfort zone, 54 Wrought-iron pipe, 323 , Wrought-steel pipe, 323 Zone of body cooling, 47 control, 606 of evaporative regulation, 47 xxui