Document e7VgwQwv9Vk6pR72RBRBwXRy9

HEATING VENTILATING AIR CONDITIONING GUIDE 1943 Infiltration (continued) temperature difference, 125 through outside doors, 124 through walls, 120, 122 Inside temperature, 129 Instruments. 669 Insulation boiler, 258 economical pipe thickness, 787 . low temperature pipe, 783 pipes to prevent freezing, 785 Intermittently heated buildings, 141 Interstitial condensation, 117 Ionization. 45 Iron elbow equivalents, 317 Isobaric. 847 Isothermal, 847. J-K-L Kata'-thermometer. 675 Latent heat, 847 ' loss, 129 Laws of thermodynamics, 847,. Leakage of air. 119 * door, 124 window, 121 Light heat gain, 159 Lignite, 176 Lint, 564 Liquid absorbents, 462 _ heat of. 846 Lithium chloride. 463 Load cooling. 32. 147. 402, 598 design, 845 heating. 35, 127. 404. 598 maximum, 845 refrigeration, 164 . M Machine vibration, 641, Manometer, 847 Mass. 847 Mb, 847 Mbh, 847 Mean radiant temperature. 69, 810 Mechanical circulators, 312 draft, 188 towers, 546 equivalent of heat, 847. furnace systems, 383 , air distribution, 385 cooling methods; 393 N dampers. 386 , ducts. 387 fans, 385 filters, 385 heavy duty, 389 methods of design, 388 motors, 385 refrigeration. 475 ' return heating system, 269 stokers, 205 Meter, meters condensation, 339 differential. 338 flow, 339 fluid. 338 ' ' Meter, meters (continued) Nicholl's heat, 679orifice, 339 plug, 339 positive, 338 pressure loss through meters. 823 . vacuum condensation, 340 venturi. 674 Methyl chloride, 479 Micromanometers, 673 ' Micron, 847 Moist air, 8 saturation, 9 volume, 20 Moisture. 755 content, 725 regain, 725 Mol. 847 Mollier diagram, 23 border scale, 31 Monofluorotriddoromethane, 482 . Motor, motors. 681 adjustable speed, 682 alternating current, 683 capacitor type, 684 compound wound, 682 constant speed, 682 control equipment for, 693 direct current, 681 electric, 140 enclosures, 692 - heat generated by, 159 polyphase, 686 repulsion induction. 685 - series wound, 682 shunt wound. 681 single phase. 684 ' speed characteristics, 682 split phase. 685, 686 squirrel cage induction, 686 wound rotor, 689 Multiple blade fans, 581 ' -N' . ^Natural draft, 187 towers, 545 Natural ventilation, 765 general rules. 771 heat removal, 766 ' Noise, noises air conditioning system. 601 air supply opening, 637 apparatus for measuring; 626 cross transmission between rooms, 640 design room level, 628 generated by fans, 629' kinds of, 627 through building construction, 641 transmitted through dtfcts, 627. unit of measurement, 625 -. Nurseries for premature infants, 703' air conditioning equipment, 704. air conditioning requirements, 703 O Occlusion of solar radiation, 560 Odors, 42 adsorption, 573 human body, 42 Oil, oils classification of, 181 combustion of, 181 estimating consumption, 235 XVlll ALPHABETICAL INDEX TO TECHNICAL DATA SECTION !*. ji Oil burners, 214 boiler settings. 218 combustion adjustments, 220 combustion process, 218 commercial. 217 controls. 221, 665 ' domestic, 214 furnace design. 219 measurement of efficiency of combustion, 220 mechanical draft, 216 operating requirements, 216 One-pipe system, 273 gravity air-vent, 296 hot water, 847 steam, 847 supply riser, 847 unit heater connection, 432' - Pipe, piping (continued) commercial dimensions, 346 , conduits for, 331 connection to-heating unit^,_304 corrosion, 366 design, hot water system. 320 direct return, 327 forced circulation. 321 gravity, 320 one-pipe forced circulation, 326 one-pipe gravity circulation, 324 two-pipe forced circulation, 323 two-pipe gravity circulation, 322 * reversed return, 327' economical thickness insulation, 787 expansion, 350 flexibility, 350 hangers. 353 Opening, openings heat losses. 775 hot water heating systems, 311 air supply noises, 637 inside, 335 types of, 770 insulation prevent freezing, 785 doors, 770 leader sizes, 370 roof vehtilators, 770, 771 low temperature insulation, 783 skylights. 770 materials, 345, 822 stacks, 771 overhead distribution. 330 windows. 770 proportioning wall stacks, 372 radiating surface, 779 Operating rooms, 699 conditions, 701 reducing explosion hazard, 699 sterilization of air in. 702 Operative temperature,' 48 Orifice heating systems, 280 Orsat apparatus,.679 T Outdoor air, 401 recirculating ducts. 373 recirculating grilles. 373 refrigerant sizes, 496 register selections, 373 return connection, 375 sizes, 291 high pressure steam. 301hot water forced circulation, 313 hot water gravity circulation, 313 ' Outlet, outlets air supply noises. 637 ceiling, 596, 597 duct approaches, 594 sound absorbers, 634 Outlet locations, 598 cooling load, 598 heating lead. 598 Outside temperature, 131 Overhead distribution, 334 Overhead system, 847 . Oxygen ' - indirect heating units, 307 . initial pressure, 291 maximum velocity, 291 orifice systems. 299 . pressure drop, 291 sub-atmospheric systems, 299 tables for, 295 two-pipe gravity air-vent system, 297 two-pipe vapor systems. 298 vacuum systems, 299 ' water supply systems, 825, 826 ' steam distribution. 329 steam heating systems. 287 chambers, 709 tents, 709 supports. 353 symbols for drawing, 856 therapy, 708 tax, 249 Ozone, 45 threads, 353 thread connections, 355 tunnels, 334 underground insulation, 789 unit heater connections, 429 P , water supply. 819 Pitot tubes. 673 Plate cell, 634 Panel heating, 807, 808 Plenum absorbers, 633 electric, 808 hot water. 807 steam, 807 , warm air, 807 Plenum chamber, 847 Pneumatic control systems, 646 Pollution of air, 555 Polyphase motors. 686 Panel radiator, 847 Panel warming, 847 Particle 6ize chart, 556\ Per cent of saturation, 19 Perforated ceilings, 597 Perforated outlets. 596 Phon, 625 Ponds, 543 Potentiometer, 847 Power, 847 - Precipitators, 568 Pre-cooling, 417 Premature infant nurseries, 703 Physical impurities in air, 45 Physiological principles, 41 Pressure . four vital factors. 69 Pilot controls, 694 a Pipe coils. 262 heat emission, 262 in - * wall. 262 - absolute, 843 atmospheric. 843 , gages. 672, 846 measurement. 671 barometer, 671 regulators, 301 Pipe, piping,- 345. capacity, 293 ' ' coil connections, 305 ' ' static, 848 total, 849 vapor, 850 XIX A