Document RJNdZ1nn060wd3w88k8RXLjrz
American Society of Heating and Ventilating Engineers Guide, 1936
Stokers (continued), overfeed inclined grate, 486 heating boilers, setting heights, 493 types of, 436. 485 underfeed rear cleaning, 487 underfeed side cleaning, 486
Storage, of hot water, 644, 648 temperatures and humidities for, 718
Storm sash, 134 Sub-atmospheric systems, 545, 552, 559, 569, 577 Suction,
static, in exhaust systems, 373 Summer,
care of heating boilers, 447 comfort zone, 68, 69, 73 conditioning, apparatus for, 169 desirable indoor conditions in, 73, 75 temperatures, 158 wind velocities and directions, 158 Sun, diurnal movement of, 160 drying, 723 effect, 85 effect on heating requirements, 548 factor of cooling load, 164 Surface, cooling, 170
equipment^ 176 air conditioning, 170 ratings. 176
extended. gravity-indirect heating systems, 530
heating, 775, 777 square foot of, 780
radiant heating, 693 Swimming pool, 650 Symbols,
for drawings, 787 for heat transmission formulae, 104 Synchronous motor, 751 Synthetic air chart, 780
T
Tank, tanks, for domestic water supply, 636 expansion, 602 flush, 636
Tees, dimensions of. 617 Temperature,
absolute, 771 adiabatic, drying, 727 of air leaving inlets, 173, 392 - ammonia, 206 apparatus sensitive to, 269, 762 atmospheric, 455 for bananas, 716 of barns, 99 base, for degree-day, 514 basic, 3 body. 58, 60. 690 changes, effect on human beings, 61 of chimney gases, 455 in cities, 148, 158, 512 of city water main, maximum, 180 commonly specified, 3 constant, drying, 727 control of, 269, 272, 499, 707
railway air conditioning, 263 of cooling water, 206 dew-point, 2, 282, 774 difference,
between floor and ceiling, 146, 524 desired, determination of, 95 . in stacks and leaders, 93, 419 dry-bulb, 1, 2, 76. 774 as index of air distribution, 76 maximum design, 158 specified in winter, 144
Temperature {continued),
effect on moisture regain, 713
effect on sound, 338
effective, 64, 75, 145, 179, 774 A.S.H.V.E. standards, 74 chart, 64, 65. 66 for maximum comfort, 69, 691 optimum, 69 scale. 63, 75
final. 390
of gas flame, 482
for greenhouses, 721 in industrial plants, 711 in industrial processing. 717, 718 inside, 73, 145, 392
surfaces, 692 low, insulation for, 656 of mean interior surface, 692 mean radiant. 689, 692 measurement of. 99. 269, 762 in occupied space, 73, 77 outside. 146, 158
radiation-convection, 695 range of cooling equipment. 207 records of cities, 148, 159
at registers, 419, 424, 531 room, 9. 511. 763
sensations, 62 surface,
of man, 690 mean interior, 692
systems for control of, 272, 499, 707 thermo-equivalent conditions, 63
value used in calculations, 136, 392
water main, maximum, 180
wet-bulb, 2, 21, 767, 782 average, 207 design, 158, 207 as index of air distribution, 76 maximum, 207
Terminology, 771
Test methods, 761
Textile, textiles, fibres,
regain of moisture, 711 weaving of, 715
temperatures and humidities for processing, 718 testing, standard atmosphere for, 715
Theaters,
air distribution in, 348 cooling in, 348 heat sources in, 83 temperatures of. 73, 144
Therm. 780
Thermocouples, 762
Thermodynamics, 780 of air conditioning, 1 laws of, 777
Thermo-equivalent conditions, 63
Thermometer, duct, 763 globfe, 695 Kata, 766 mercurial, 762 recording, 764
resistance, 763
Thermopile, 763
Thermostat, thermostats, 781 differential. 9, 269 with gas-fired furnaces, 502 location of, 273, 278, 411
. with oil burners, 499 with radiant heaters, 707 types of, 93, 230, 269
s
Tobacco smoke, 77
Ton of refrigeration, 43, 187, 781
Ton-day of refrigeration, 781
Towers, cooling, 190,195. 205, 208
atmospheric, 210 mechanical draft, 210 natural draft, 210 spray, 209
XX
Alphabetical Index to Technical Data Section
Traps, dust catchers, 294 return, automatic, 555 with steam heating systems, 540, 552 types of, 552
Tube. Bourdon, 761 Pitot, 764 shell and tube heat exchanger, 193
Tubing, copper or brass, 618
Tuning fork, 327
Tunnel dryers, 729
Tunnels, for steam pipe, 675
Turbines, with unit heaters, 228 Two-pipe steam heating systems,
gravity air-vent, 537, 566, 577 down-feed, 538 up-feed, 537
vapor, 539, 567 down-feed, 541
U
Ultra-violet light, 80, 289
Underwriters' loop, 536, 574
Unit air conditioners, 217, 218, 237, 781 accessory apparatus, 218
advantages, 218 air distribution, 243 classification, 217, 238 cooling, 240 construction of apparatus, 244
costs, 252 design of. 244 filtering, 242 functions pf, 217
heating, 238 humidifying, 239 location of, 243 ratings of, 250 required capacity of, 251 types of, 238 uses of, 238 ventilation, 242
Unit conditioning systems, 217 {see Unit Air Con
ditioners)
Unit coolers, 218. 235, 781
design of, 235 ratings of, 237
Unit equipment. 218 advantages. 218 controls. 254 miscellaneous, 252
Unit heaters, 217, 218. 781 air temperatures, 222 blow-through type, capacity of, 224
boiler capacity, 226 control of, 273 design of, 219 direction of discharge, 223 draw-through type, capacity of, 225
electric. 227, 702
estimating heat losses, 221
heating medium, 221
industrial uses, 228
output of, 222
piping connections, 226
quietness, 226
ratings of, 222
types of, 219, 702
used in industry, 227
Unit ventilators, 217, 218. 228
y capacity of, 232
control of, 274
design of, 228
ratings of. 233
vents, 232
Unwin pressure drop formula, 672
A
Up-feed piping systems, 534, 537, 539, 542, 782 Upward system of air distribution, 348
V
Vacuum drying, 726
Vacuum pumps, 550
Vacuum refrigeration, 46, 189
Vacuum system of steam heating, 543, 550, 553,
568, 782
Valve, valves, 622 apparatus which operates, 271 on boilers, 445, 572 control, with steam heating systems, 571, 622 with high pressure steam, 569 operator, 271 pressure-reducing, 570
ratings of, 569 for radiators, 535, 539 roughing-in dimensions, 625 sub-atmospheric system, 545
on traps, 553 types of, 622 for water supply, 634
Vapor, 782 mixture with air, 10
pressure, 10 -steam heating systems, 538. 782 water, 3, 5, 9, 10, 22 weight of saturated, 10 Varying speed motor, 751 Vegetables, temperatures for greenhouses, 721
Velocity, 782 air, A.S.H.V.E. ventilation standards, 74
in ducts of buildings, 357, 367 in exhaust systems, 373, 380 through heating units, 390 measurement of, 764 through mechanical draft towers, 211 through openings, 98 sound effect of, 338, 367 for ventilation, 76 chimney gas, 457 draft loss. 463
contours, 375 in ducts, 764 of fans, 319 head, of fluids, 351 steam,
through an orifice, 569 in underground pipes, 671
f
water, in pipes, 592 wind,
choosing, 136 measurement of, 98 on natural draft equipment, 210 in natural ventilation, 89
Vent, vents, in gas-fired steam or vapor systems. 506
on traps, 553 in unit ventilators, 232 Ventilation, 57, 782 {see also Air, Distribution)
A.S.H.V.E. standards, 74, 790 of barns, 99 drying phase, 742 of garages, 100 mechanical, 79
with roof ventilators, 93
natural, 77, 138 advantages of, 79
air changes per hour, 138 control of, 93 disadvantages of, 79 general rules for, 97 heat to be removed by, 95 requirements for, 79 openings,
doors, 91 formula to determine size of, 89 location of, 95