Document O3xBKZ0NM8QEkOVvekqY48wBv

American Society of Heating and Ventilating Engineers Guide, 1937 Steam (continued) heating systems vapor, 573, 591 one-pipe, 550 two-pipe, 551, 552, 581 water hammer in, 573 zone control, 560 high pressure, 583 jet apparatus, 205 meters for, 696 pressure, 583 properties of, 28 ' requirements of buildings, 522, 699 saturated, properties of, 31 savings in use of. 693 tables. 8. 28 trap, 796 underground, 687 in unit heaters, 240 Stokers, apartment house, 502 automatic control of, 291, 433 commercial, 504 design of, 497 economy of, 497 household, 500 mechanical, 497 - operating requirements, 501 overfeed flat grate, 497 overfeed inclined grate, 498 heating boilers, setting heights, 505 types of, 446, 497 underfeed rear cleaning, 499 underfeed side cleaning, 498 Storage, of hot water, 660, 664 temperatures and humidities for, 734 Storm sash, 135 Sub-atmospheric systems, 557, 564, 573, 583, 591 Suction, static in exhaust systems, 385 Summer, care of heating boilers, 460 comfort zone, 68. 70 conditioning, apparatus for, 185 desirable indoor conditions in, 71, 76 temperatures, 158 wind velocities and directions, 158 Sun, diurnal movement of, 160 effect on heating requirements, 560 factor of cooling load, 164 Supply outlets, selection of, 358 types of, 359 Surface, cooling, 187 equipment, 193 air conditioning, 187 ratings, 193 extended,' gravity-indirect heating systems, 542 heating, 793 square foot of, 796 radiant heating, 709 Swimming pool, 666 Symbols, for drawings. 804 . for heat transmission formulae, 100 Synchronous motor, 769 Synthetic air chart, 797 T Tank, tanks, for domestic water supply, 652 expansion, 617 flush, 652 Tees, dimensions of, 635 Temperature, * absolute, 778 of air leaving inlets, 189, 349 ammonia, 225 Temperature (continued) apparatus sensitive to, 275, 778 atmospheric, 467 for bananas, 732 of barns, 95 base, for degree-day, 526 basic, 3 body. 57, 58, 706 changes, effect on human beings, 59 of chimney gases, 467 in cities, 148, 158, 524 of city water main, maximum, 196 control of, 275, 511. 723 railway air conditioning, 405 of cooling water, 224 dew-point, 3, 790 difference, between floor and ceiling, 146, 536 desired, determination of, 91 in stacks and leaders, 89, 412 dry-bulb, 2, 82 maximum design, 158 specified in winter, 144 effect on moisture regain, 729 effect on sound, 342 effective, 82, 145. 195, 791 . A.S.H.V.E. standards, 81 chart, 64, 65, 66 for maximum comfort, 63, 707 optimum, 69 scale, 63, 82 final, 172 of gas flame, 494 for greenhouses, 737 in industrial plants, 727 in industrial processing, 733, 734 inside, 67. 145, 174 surfaces, 708 low, insulation for, 672 of mean interior surface, 708 mean radiant, 705, 708 measurement of, 95, 275, 778 in occupied space, 71, 76 . >. outside, 146, 158 radiation-convection, 711 range of cooling equipment, 225 records of cities, 148, 159 at registers. 412, 418, 543 room, 10, 523, 779 sensations, 61 surface, of man, 706 mean interior, 708 ' systems for control of, 275, 511, 723 thermo-equivalent conditions, 63' value used in calculations, 137, 174 water main, maximum, 196 wet-bulb, 11, 783, 798 average, 225 design, 158,207 ` as index of air distribution, 76 , maximum, 225 - Terminology, 787 . Test methods, 777 - Textile, textiles. C fibers, v regain of moisture, 727 weaving of, 731 temperatures and humidities for processing, 734 testing, standard atmosphere for, 731 Theaters, temperatures of, 71, 144 . Therm, 797 Thermocouples, 778 Thermodynamics, 797 of air conditioning, 1 laws of, 794 Thermo-equivalent conditions, 63 Thermometer, duct, 779 globe. 711 Kata. 782 mercurial, 778 recording, 780 resistance, 779 Thermopile, 779 XX Alphabetical Index to Technical Data Section Thermostat, thermostats, 797 differential. 10, 275 with gas-fired furnaces, 514 . immersion, 276 insersion, 276 location of, 433 with oil burners, 511 pilot, 282 with radiant heaters, 723 room, 276 surface, 276 types of, 89. 249. 275 Tobacco smoke, 75 Ton of refrigeration, 42, 203, 797 Ton-day of refrigeration, 797 Towers, cooling, 206, 209, 228, 230 atmospheric, 230 mechanical draft, 230 natural draft, 229 spray, 228 Traps, dust catchers, 302 return, automatic, 568 with steam heating systems. 551, 565 Tube, Bourdon, 777 Pitot, 780 shell and tube heat exchanger, 211 Tubing, copper or brass, 633 Tunnels, for steam pipe, 691 Turbines, with unit heaters, 246 Two-pipe steam heating systems, gravity air-vent 549, 580, 591 down-feed, 550 up-feed, 549 vapor, 551, 581 down-feed, 552 U Ultra-violet light, 79. 297 Underwriters' loop, 548, 588 Unit air conditioners. 235, 236, 256, 797 ' accessory apparatus, 236 advantages, 236 -air distribution, 261' classification, 236 cooling, 258 ~ construction of apparatus, 262 . costs, 270 design of, 262 filtering, 259 . functions of, 235 heating, 256 humidifying, 257 location of, 260 ratings of, 268 required capacity of, 269 types of, 236 uses of, 236 ventilation, 260 Unit conditioning systems, 235, (see Unit Air Con-: ditioners) Unit coolers, 235 control of, 287 design of,-254 ratings of, 255 Unit equipment, 235 ` advantages. 235 controls, 273, 286 miscellaneous, 271 . Unit heaters, 235, 797 air temperatures, 240 blow-through type, capacity of, 242 boiler capacity, 244 control of, 287 design of, 237 direction of discharge, 244- draw-through type, capacity of, 243 electric, 246, 718 estimating heat losses, 240 . Unit heaters (continued) heating medium, 239 industrial uses, 246 output of. 241 piping connections, 245 quietness, 245 ratings of, 241 types of, 237, 718 used in industry, 246. ' Unit ventilators, 235, 237, 247 capacity of, 251 control of, 248, 288 design, of, 247 ratings of, 251 vents, 250 * Unwin pressure drop formula, 688 Up-feed piping systems, 546, 549, 550, 555, 798 V Vacuum pumps, 562 Vacuum refrigeration, 44, 205 Vacuum system of steam heating, 554; 563, 566, 582, 798 Valve, valves, 638 apparatus which operates, 275 on boilers, 458, 586 control. 277 with steam heating systems, 585, 638 with high pressure steam, 583 pressure-reducing, 584 ratings of, 583 for radiators, 547, 551 roughing-in dimensions, 641 solenoid, 277 sub-atmospheric system, 557 . on traps, 566 types of, 638 for water supply, 650 Vapor, 798 mixture with air, 12 pressure, 12 steam heating systems, 550, 798 water, 5, 10, 12 weight of saturated, 12 Varying speed motor, 769 Vegetables, temperatures for greenhouses, 737 Velocity, air, A.S.H.V.E. ventilation standards, 81 in ducts of buildings, 369, 379 in exhaust systems, 385, 392 through heating units, 172- measurement of, 780 through mechanical draft towers, 230 through openings, 94 - sound effect of, 379 ' chimney gas, 471 draft loss, 476 contours, 387 in ducts, 780 ` of fans, 327 head, of fluids, 363 steam, through an orifice, 583 in underground pipes, 687 water, in pipes, 608 wind, choosing, 136 measurement of, 94 on natural draft equipment, 230 in natural ventilation, 85 Vent, vents, . in gas-fired steam or vapor systems, 518 on traps, 566 in unit ventilators, 250 Ventilation, 55, 798, (see also Air, Distribution) , A.S.H.V.E. standards. 81. 807 of barns, 95 . of garages, 96 mechanical. 79 with roof ventilators, 89 XXI