Document Qk2zj69ODzk9pX4JqybGMed2E

American Society 0/Heating and Ventilating Engineers Guide, 1937 Load {continued) maximum, 452 radiation. 452 Louver fences, 227 Motors, electric {continued) split phase, 765 synchronous, 769 varying speed, 763 MRT, mean radiant temperature, 705, 708 M N Machinery, as heat source, 150, 165 sound insulation of, 337' Magnesia insulation, 673 Manometer, 780/794 Masonry materials, heat transmission through'. 107 Mass, 794 Mb. 601. 794. Mbh. 601, 794 Mean radiant temperature, 705, 708 Mechanical, draft towers. 230 equivalent of heat, 802 refrigeration, 35 ventilation, 79 warm air furnace systems, 427 air distribution, 431 design of. 434 register and grille locations, 431 Metabolism, 57, 77 Meters, choice of, 696 condensation, 697 fluid, 696 Natural draft towers. 229 Natural ventilation, 79, 85 Nicholls heat flow meter, 785 Noise (see also Sound) air outlet, 354 in buildings, 334, 337 control of, 334 through ducts, 342 through room wall surface, 341 with warm air systems, 430 kinds of, 336 level, - acceptable, 335 of compressors, 207 of fans, 325 of unit heaters, 245 measurement of, 334 through building construction, 337 Nozzle, 217 air spray, 189 oil atomizer, 507 water spray, 221 Nicholls heat flow, 785 steam flow, 698 types of, 696 water, disc, 651 O Methyl chloride, 40, 225 Metric units, 803 Micron, 307, 794 Mixture, air and water vapor, 12 Modulating control, 279 Moisture, 681 content, of air, 76, 195, 221, 727 of hygroscopic materials, 728, 743 internal, gradient, 734 loss by human body, 76 from outside air, 165 produced by cattle, 95 regain, 727 Mol, 794 Monitor openings, 88 ' Monofluorotrichloromethane; 41 Motive power, 761 Motors, electric, 761 adjustable speed, 762 adjustable varying speed, 762 alternating current, 761 capacitor type, 764 classification of, 766 compound wound, 761 constant speed, 762 control equipment for, 769 automatic, 770 manual, 769 multispeed, 772 pilot, 770 single phase, 774 slip ring, 773 damper, 277 direct current, 761 control of, 771 as heat source, 150 induction, automatic start. 768 repulsion start, 764 slip ring wound rotor, 768 squirrel cage, 765 polyphase, 765 selection of, 395 series wound, 761 shunt wound, 761 single phase, 764 special applications, 769 Odors, 73 of human origin, 55 concentration, 74 removed by outside air, 75 . Oil, oils, atomization of, 463 burner, burners, air for combustion, 508 air supply for, 507, 509 automatic, 512 boilers, 445, 447, 511 carbon monoxide produced by; 508 for commercialuse, 512 control of, 290, 511- design considerations, 510 for domestic hot water supply; 512 for domestic use, classification, 507 efficiency of combustion, 510. flame with, 507 furnace requirements, 428, 433, 508 ignition, 507 installation, 509 oil consumption, 510, 521, 528 operation, 507 Orsat test, 510 specifications, 491 .* calorific value of, 492 classifications, 491 as corrosion inhibitor, 643 cost of, 493 heated electrically, 722 ignition of, 492 preheating, 512 specifications, 491 One-pipe steam heating systems, gravity air-vent, 545, 549, 579, 591 down-feed, 549, - up-feed, 546 vapor, 550 Openings, air inlet, 88 monitor, 88 for natural ventilation, location of, 91 resistance offered to flow, 92 size of, 85 types of, 86 XVI Alphabetical Index to Technical Data Section Orifice, orifices, friction heads, 612 steam heating systems, 559, 573; 583, 591 Orsat test apparatus, 510, 784 Outlets {see also Registers, Grilles) design and location of, 359 Oxygen, 642 Ozone, 83 P Paint, effect on radiators, 535 spray booths, 390 temperatures and humidities for processing, 735 Partial pressures, Dalton's law of, 1 Perspiration, 55, 58, 77, 79 Petterson-Palmquist apparatus, 783 Pilot thermostat, 282 Pipe, piping, 623 bare, heat loss from, 669 bends, 585, 630 capacities (see Pipe, Sizes) coil radiators, 533 conduit, 689 connections, 586, 692, {see also Connections) copper, 624 corrosion of, 642 dimensions of, 624, 669, {see also Pipe, Sizes) down-feed systems, 548, 549, 550, 552 expansion of, 585, 627, 689 fittings, 632, {see also Connections, Fittings) for water supply, 650 welding fittings, 638. 669 flanges, 639, 669 flexibility of, 627 friction, of air in, 365 .. heads in, 607 gaskets, 634 bangers, 632 heat loss from, 517, 669 for hot water heating systems, 601, 619 insulation of, 669 joints, 585, 689 leader, 412 radiators, 533 scale in, 642 sizes, for boiler runouts, 588, 688 for central' fan systems, 593 for convector connections, 592 " dimensions, 624, 627 for district heating, 688 for domestic hot water, 656 effects of variation of. 611 elbow equivalents, 607 equivalent length of run, 575 friction head, 608 of orifices in unions, 612 for Hartford return connection, 588 for hot water heating systems, 605 forced circulation systems, 606 gravity circulation systems, 613 for indirect heating units, 595 for pipe coil connections. 593 for radiator connections, 590 return, capacity of, 578 steam, 572, 576. 577 underground, 687 tables. 577, 627 tees, 635 for underground steam, 687 for water supply, 649 . weights, 624 steam, capacity of. 574 for steam heating systems, 545, 571 supports, 632 sweating. 681 systems, down-feed, 548, 549, 550, 552 systems, up-feed, 546, 549, 552, 555 tax, 453 tees, dimensions of, 635 Pipe <continued) threads. 631, 633 tunnels. 691 types of, 623 underground, insulation of, 683 steam, 687 for unit heaters, 245 up-feed systems, 546, 549, 552, 555 valves, 638 water supply, 645 weights of, 624 welding, 634 , Pitot tube, 780 Plastering materials, beat transmission through. 111 Plenum, chamber, 795 systems, automatic control of, 280 . Plumbing fixtures, 645 Pneumatic control system, 278 Pollution of air, 295 Polyphase motors, 765 Ponds, cooling, 227 Pool, swimming, 666 Positive acting control, 278 Potassium permanganate, 228 Potentiometer, 795 Power, 795 conversion equations, 801 electric, 724 supply, railway air'' conditioning, 406 Precipitators, dust, 302 Pressure, pressures, absolute, 787 air, in heating unit, 172 measurement of, 780 atmospheric, 777, 788 1 for atomization, 222 automatic control, 277 barometric, 467, 777 basic, 3 '. conversion equations, 801 drop, formula for, 688 dynamic, 791 gage, 777, 792 loss through ducts, 363 measurement of, 777 . partial, Dalton's law of, 1 refrigerating plant, 255 of saturated vapor, 12 -_ static, 182, 796 ' steam, in direct heating, 688 drop, 548, 572, 577 initial, 572 in orifice systems, 559 saturated, 28 in sul>atmospheric systems, 558 total, 797 vapor, 31, 798 velocity, 798 water. 27, 649 Processing, 727 cooling systems. 198 industrial, temperatures and humidities for, 734 of textiles, 729 unit heaters, 246 Propeller fans, test code for, 320 Psychrometer, 795 sling, 782 Psychrometric,. chart, 25, 64, 65, 66, {back cover) for dryer, 746 explanation, 25 tests, 63 Pump, pump9, circulating, 603 condensation return, 562 heat, 50, 722 vacuum, 562 ratings of, 562 xvu