Document x1ZZv45K6mNRY2r5a3XRkykjg

HEATING VENTILATING AIR CONDITIONING GUIDE 1942 Table {continued) pressure loss. refrigerant line. 498 water disc meters, 817 properties of, ammonia, 480 carbon dioxide, 484 dichlorodifluoromethane, 482 gaseous fuels, 176 methyl chloride. 483 monofluorotrichloromethane, 486 saturated steam, 24 water, 486 radiating surface, copper tubing, 775 pipe. 775 radiator sizes, 254, 255 ' regain of hygroscopic materials, 722 relation between metabolic rate and activity, 48 requirement for fuel oil, 174 return pipe capacities. 292 . sheet metal gages for ducts, 624 solar radiation, 142 # specific heat of solids, liquids, gases, 854 steady-state conduction problems, 76 steam pipe capacities, 291 temperatures and humidities for industrial pro cessing, 718 theoretical air requirements, 161 < thermodynamic properties of moist air, 10 toxicity of gases and fumes, 565 weight of saturated air, 26 . Tank, tanks, expansion, 324 Temperature, temperatures . absolute, 4, 837 automatic control. 340 British equivalent, 802 control for railway passenger cars; 712 control service water, 835 design wet-bulb, 548 dew-point, 20 dry-bulb, 839 drying, 746 effective, 54, 127, 839 hazards in treatment of disease, 704 . humidity, railway cars, 712 inside, 127 ' attic, 127 ceilings, high', 128 floor level. 129 proper level, 127 mean radiant, 65. 806 measurement, 671 thermocouple, 672 thermometers, 671 outside, 129 surface, 528 ' thermodynamic wet-bulb, 21 wet-bulb, 844 water main, 545 Terminology, 837 Test methods. 671 Therapy, . cold. 704 .fever, 703 oxygen, 706 , Therm, 843 Thermal. conductance, 84 conductance equation, 69 conductivity, 84 convection, 68 convection equation, 70 expansion of pipe, 348 interchanges of body, 42 radiation equation, 72 . resistance, 843 ' resistivity, 843 steady-state conduction problems, 76 ... transmittance, 84 unit conductances for convection, 78 Thermocouple, 672 Thermodynamic, air and water mixture, 1 laws of. 841 wet-bulb temperature, 21 Thermometers, 671 alcohol, 671 dry-bulb, 65 globe. 65, 681. 811 kata, 65, 677 mercurial, 671 resistance, 673 stem correction. 672 Thermostat, 843 elements. 648 room, 650 Thermostatic trap, 283 Tilting trap, 284 Time lag through walls and roof, 147 Ton day of refrigeration, 843 Ton of refrigeration, 843 Total heat. 843 (see Enthalpy) Total pressure, 843 Tower, towers, cooling, design, 552 cooling, performance, 559 mechanical draft. 552 natural draft, 551 spray cooling, 551 Transmission, coefficient, 838 normal heat. 141 solar heat, 141 Transmittance, 84 . Transportation air conditioning, 709 Trap, traps, 283 automatic return, 284 bucket. 283 float, 283 impulse trap, 284 steam, 843 thermostatic. 284 tilting, 284 Traveling-grate stoker, 198 Treatment of disease. 697 Tube radiator, 253, 843 Tunnel drier, 742 pipe, 330 Turning vane, 602 / U Ultra-violet light, 41. 566, 700 Underfeed stoker, 293, 843 Underground pipe insulation, 785 Unit, units, 843 air conditioners. 443 application, 452 cooling, 445 * costs. 459 dehumidifying, 445 filtering, 446 heating, 444 humidifying, 444' ratings, 456 types of. 447 ventilating, 446 British thermal, 837 cooling. 456 defrosting. 458 features of, 457 ` ratings, 458 types of, 457 direct-indirect heating. 839 fuel consumptions. 226 heaters, 426 . application, 433 boiler capacity, 429. direct-fired, 435 electric, 435, 791 features, 426 xxu ALPHABETICAL INDEX TO TECHNICAL DATA SECTION Unit (continued) functions and features, 436 piping connections, 301, 429 ratings, 436 ratings, 428 specifications, 435 turbine-driven, 435 types of, 427. 441 humidifiers. 441 types of, 441 induction, 415 noise measurement, 629 spray type, 451 systems, 663 ventilators, 435 applications. 439 window, 440 viscous type filters, 573 Unitary equipment, 425 definitions, 426 Utilization, fuel, 219 V Vacuum, cooling unit, 488 drying, 742 heating pumps, 280 control, 281 piston displacement. 282 heating.systems, 274, 843 down-feed, 276 unit heater connection, 433 Valve, valves, 361 angle. 362 automatic, 361 check, 361 control, 302 expansion, 492 flow, 287 gate. 361 globe, 361 reducing pressure, 361 Vane, turning, 602 Vapor, vapors, heating system, 271, 844 unit heater connection, 433 inflammability, 563 pressure. 844 toxicity. 565 Vaporizing oil burner, 208 Velocity, 844 method duct design, 621 pressure, 844 Ventilation, 844 attic. 112 dairy barn. 768 garage, 769 natural. 761 general rules, 767 operating room, 698 passenger bus in summer, 713 physiological objectives of, 61 railway passenger car, 709 symbols for drawing, 852 systems, 393 wind forces, 761 Ventilator, ventilators, control, 767 roof. 766. 842 unit, 435 control. 664 window, 440 Vertical openings, 122 sealing of, 122 Vibration from machine mountings, 643 Viscous filters. 573 automatic. 575 impingement. 572 unit type. 573 Volume, control, 414 damper, 384 furnace, 172 specific, 842 W Wall, wails, heat flow through, 145 infiltration through, 116 time lag of solar radiation, 147 Warm air, heating systems, 365, 379, 844 panel heating, 803 radiator, 215 radiant heating, 803 Washer, washers, 537 air. 575, 837 Water, atmospheric cooling equipment, 543 coils, 512 control temperature service, 835 cooled condenser, 494 coal-fired, 833 heating. 813. 830 make-up. 559 maximum, main temperature, 545 outside, 129 properties of, 486 supply piping, 813 allowance for fittings, 819 factor of usage, 814 maximum flow, 814 pressure, 815 sizing down-feed systems, 822 sizing up-feed ^systems, 820 thermodynamics of, 1 well, temperatures, 544 Water vapor, 6 saturation pressure, 6 specific enthalpy, 7 specific volume, 7 Welding. 341, 354 ,, Wet-bulb temperature, 548, 844 (see Temperature) Wet return, 844 Wind, winds forces, 762 due to stack effect, 762 natural draft equipment. 551 selection of, velocity, 120 velocity effects, 129 Window, windows, coefficient of transmission. 111 leakage. 119 solar radiation through, 147 ventilation, 766 v. ventilators, 440 Winter air conditioning system, 393 , comfort zone, 55 Wrought-iron pipe, 341 Wrought-steel pipe, 341 X-Y-Z Year 'round air conditioning system, 393 Zone control, 650 control, 650 evaporative regulation, 46 Zoning, 412 dual duct, 414 multiple fans. 413 recooling, 413 reheat. 413 separating equipment, 413 volume control, 414 XXUl