Document 2R8p2E7rL4O261Lbp4LeMZDK7

Heating Ventilating Air Conditioning Guide 1938 M Machinery, as heat source, 140, 159 mountings vibration, 587 sound insulation of, 587 Magnesia insulation, 724 Manometer, 811, 826 , Manual control, (see Controls) Masonry materials, heat transmission through. 97 Mass. 826 Mb. 331. 826 Mbh, 331, 826 Mean radiant temperature, 754, 758 Mechanical, draft towers, 515 equivalent of heat. 826, 834 fuel burning equipment, 201 refrigeration, 35 ventilation, 77 warm air furnace systems, 391 air distribution, 397 design of, 400 w ^sister and grille locations, 397 Medical treatment, (see Diseases) Mental trouble, 605 v Mercurial thermometer, 809 Metabolism, 53, 73 Meters, choice of, 774 condensation, 771 fluid. 774 Nicholls heat flow, 817 steam flow, 776 types of, 774 water, disc. 789 Methyl chloride, 37, 42, 511 Metric units, 835 Micromanometers, 808 Micron, 79, 826 Mixture, air and water vapor, 12 Modulating control, 687 Moisture. content, of air, 72, 147, 503, 625 capillary or free, 651 of hygroscopic materials, 626, 651 loss by human body, 76 from outside air, 158 produced by cattle, 679 - regain, 625 Mol, 826 ' Monitor openings, 672 , Monofluorotrichloromethane, 37, 44 Motive power, 703 Motors, electric, 703 adjustable speed, 704, 709 adjustable varying speed, 704 alternating current, 705 application of. 708 capacitor type, 706 characteristics of, 708 dassiflcation of, 708 compound wound, 703 constant speed, 704, 708 control equipment for, 711 automatic, 712 manual, 711 multispeed. 714 pilot, 712 single phase, 716 slip ring, 715 damper. 685 direct current, 703 control of, 713 speed characteristics, 704, 708 as heat source, 159 induction, automatic start, 710 - capacitor start, 706 repulsion, 706 repulsion start, 707 - slip-ring wound rotor, 710 squirrel cage, 707 Motors, electric (continued) polyphase, 707 selection of, 645 series wound, 703 shunt wound, 703 single phase, 706 special applications, 711 split phase, 707 synchronous, 711 varying speed, 705 MRT, mean, radiant temperature, 754, 758 N Natural draft towers, 515Natural ventilation, 72, 669.' Nervous instability, 607 * Neurosyphilis, 603 Nicholls heat flow meter, 817 Noise, (see also Sound) air outlet, 554 in buildings, 584, 587 control of, 584 through ducts, 592 through room wall surface, 591 with warm air systems, 396 equipment, 586 kinds of, 586 level, acceptable, 585 of compressors, 471 of fans, 539 of unit heaters, 442 measurement of 584 through building construction 587 Nozzle, 499 air spray, 499 oil atomizer, 214 water spray, 499 Nurseries. 600 equipment for, 602 requirements for, 601 ventilation rate, 602 O Odors, 69 of human origin. 51 concentration 70 removed by outside air, 71 Off peak heating, 748 Oil, oils, atomization of, 507 burner, burners, air for combustion, 214 air supply for, 214, 219 boilers. 216. 218 burning rate chart, 238 classification. 215 combustion, 218 for commercial use, 216 control of, 220, 698 - design considerations, 219 for domestic use, dassiflcation, 214 efficiency of combustion, 220 flame with, 214 furnace requirements, 246, 394 ignition, 214 oil consumption, 229, 238 operation, 214 Orsat test, 220 specifications, 173 types of, 215 calorific value of, 174 classifications, 171 as corrosion inhibitor, 375 cost of. 175 gages, 221 ignition of, 174, 214 preheating, 217 specifications, 174 XVl Alphabetical Index to Technical Data Section One-pipe steam heating systems, 275, 826 (see also Steam Healing Systems) Openings, 670 air inlet, 672 monitor, 672 for natural ventilation, . location of, 675 resistance offered to flow, 676 size of. 669 types of, 670 Operating rooms, anesthesia, 597 explosion hazard, 597 humidification, 598 static electricity, 598 ventilation, 598 Orifice, orifices, friction heads, 612 steam heating systems, (see Steam HeatingSystems) Orsat test apparatus, 212, 220, 224, 816 Outlets, (see also Registers, Grilles) design and location of, 559 Oxygen, 375, 559 Oxygen therapy, diseases treated, 605 oxygen chambers, 606 oxygen tents. 605 Ozone, 77 P Paint, effect on radiators, 265 spray booths, 640 temperatures and humidities for processing, 623 Panel radiation, 826 Panel warming, 827 Partial pressures, Dalton's law of, 1 Perspiration, 51, 54, 73, 75 Petterson-Palmquist apparatus, 815 Pipe, piping, 355 bare, heat loss from, 719 bends. 315, 362 capacities, (see Pipe, Sizes) coU radiators, 263 conduit, 738, 767 connections, 316, 770, (see also Connections) copper, 356 corrosion of, 374 district steam, 765 dimensions of. 359 (see also Pipe Sizes) expansion of, 315, 359, 767 fittings, 364, (see also Connections, Fittings) for water supply, 788 welding fittings, 366 flanges, 370, 723 flexibility of, 359 freezing, prevention of, 733 friction, 791 of air in, 566, 567 heads in, 336 gaskets, 366 hangers, 364 heat loss from 225, 719 cost of, 720 for hot water heating systems, 331, 351 insulation of, 719- joints, 315, 769 leaders, 378 radiating surface, 722 -. radiators, 263 refrigerant, 484 scale in. 374 sizes, for boiler runouts. 318, 766 for central fan systems. 323 for convector connections, 322 dimensions,- 356, 359 for district heating, 766 for domestic hot water, 795 Pipe, piping, sizes (continued) elbow equivalents, 340 equivalent length of run, 305 friction head, 337, 791 of orifices in unions, 343 for Hartford return connection, 318 for hot water heating systems, 335 for black iron, 337, 338 for copper tube, 337, 339 forced circulation systems, 337 gravity circulation systems, 345 for indirect heating units. 325 mains, 790 for pipe coil connections, 323 for radiator connections, 320 refrigerant, 484, 486 return, capacity of, 308, 767 steam. 302, 306, 307 underground, 767 tables. 306, 655 tees. 364 for underground steam, 767 for water supply, 787 weights, 361 steam, capacity of, 304 for steam heating systems, 275, 301, (see also Steam Heating Systems) supports, 364 sweating, 734 tax, 253 tees, dimensions of, 367 threads, 363, 365 tunnels, 767 types of, 355 underground, insulation of, 737 steam, 767 for unit heaters, 442 valves, 370 water supply, 783 weights of, 356 welding, 366 Pitot tube, 811 Plastering materials, heat transmission through, 101 Plenum, chamber, 827 systems, automatic control of, 688 Plumbing fixtures, 377 Pneumatic control system, 286 Pneumonia, 52, 599, 605, 607 Pollen, 605 Pollution of air, 83 Polyphase motors, 707 Ponds, cooling, 512 Positive acting control, 686 Post-operative pneumonia, 599 Potassium permanganate, 514 Potentiometer, 827 Power, 827 conversion equations, 833 electric, 750 supply for controls, 686 railway air conditioning, 613 Precipitators, dust, 527 Premature infants, 600 humidity of, 601 mortality of, 602 requirements of, 601 Pressure, pressures, absolute, 819 air. in heating unit, 412 measurement of, 811 atmospheric, 807, 820 for atomization, 504 automatic control, 685 barometric, 183, 807 basic, 3 controllers. 685 conversion equations. 833 drop, 566, 791 drop through refrigerant pipe, 486 ` dynamic. 823 gage, 808 loss in copper pipe, 339, 486 loss through ducts. 563, 643