Document 0qx1GbXyXyvGZkrX2aBpObX0J

Heating Ventilating Air Conditioning Guide 1958 Regulator, 393, 396 Reheat, 744, 756 Relative humidity, 5, 25, 52, 229 measurement of, 1252 Relief valve, 587, 1216 Residence control systems, 965 air conditioning, 965, 1221 domestic hot water supply, 1219 heating, 965 cooling methods, 511,1221 gravity furnace systems, 430, 483 heat loss problems, 282 hot water heating system, 555 mechanical furnace system, 483 steam heating system, 513 Residential Air. Condition ing, 1221 air distribution, 1226 application, 1224 - central systems, 1224 equipment capacity, 1222 - equipment location, 1225 equipment types, 1222 noise, 1225 operating costs, 1227 Resistance thermometers, 1242 Resistivity, thermal, 7 Resistors, 1047 electric, 8 Return dry. 8 grille, 484, 784 mains, 8, 513, 532-535 openings, 784 wet, 8 Reverse cycle refrigeration, 912, 929-937 Reverse return system, 8,565 Ringelmann chart, 155, 1254 Roof, roofs beat flow through, 196-203,209, 210, 301, 304. 308 time lag of solar radiation, 322 ventilators, 252 Room air conditioners, 659, 1224 air motion, 760, 775 control, 982 coolers, 659, 664, 605, 669 cross transmission noise, 1041 latent heat, 327, 328 noise level, 1021, 1034 operating, 138 sensible heat, 326 Rotary dryer, 1173 Rotary oil burner, 392, 398 s Sabin, 8 Sanitary ventilation, 132 Saturated air, 1, 25 Saturation, 7 degree of, 8, 25, 31 pressure, 7 Scale, 1070 cause and prevention, 1065, 1070 closed systems, 1074 heating systems, 1076 high temperature, 1076 open systems, 1074 temperature, 9 Schoolhouse Heating Ventilating design factors, 1232 classrooms, 1232 direct radiation, 1236 economic, 1234 forced air, 1236, 1237 and Schoolhouse Heating and Ventilating (continued) gravity exhaust, 1235 exhaust, 1235 panel heating, 1237 unit ventilator, 1237 general considerations, 1231 maintenance, 1238 operation, 1238 systems, 1235 Secondary air, 352, 368, 407 Sectional boiler, 415 ' Sensible cooling, 755 . Sensible heat, 279,287 gain, 287, 3Z7 loss, 279 Shading of glass areas, 318 Shading screen, 321 Sheet metal gages, 817, 818 Ship heating, ventilation, air conditioning, 1192 air conditioning, 1192, 1194 design conditions. 1193 factors affecting design, 1192 general consideration, 1192 heating, 1192 insulation of ducts, 1192 refrigeration, 1195 requirements for space, 1193 cargo, 1194 living, 1193 machinery, 1193 storeroom, 1194 systems, typical, 1194 --ventilatmg;_1192 Silica gel, 957 Silicon dioxide, 957 Singlft phase motors, 1000 Skylights, 252 Slime, 1068. 1076 cause ana prevention, 1076 formers, 1068 Slotted outlets, 777 Sludge, 1065, 1070 cause and prevention, 1070 Smog. 131, 155 Smoke, 8, 151, 154 abatement, 155, 350 density measurements, 1256 Smokeless arch. 8 Smokeless combustion, 350 Snow melting, 631 . . antifreeze characteristics, 638 circulating medium, 640 effect of viscosity, 635 design. 631 draining, 640 drifting snow, 640 heat from slab, 632 heating requirements, 631 installation, 637 internal corrosion, 638 pumping head, 634 safety, 637 slab construction, 638 snowfall, 633 testing installation, 640 thermal stresses, 639 Soil specific heat, 172, Solar constant, 8, 296 Solar heat gain (continued) design for figured rolled glass, 314 design for flat glass, 311 * design for glass block, deviation from design, 317* shading glass, 321 Solar radiation, 296 * absorption of, 296 magnitude, 296 Solar water heater, 1217 Sol-Air temperature, 301 Soot, 156, 350. 378 Sorbents, 955 absorbents, 955, 959 adsorbents, 955 Sorption, 8 Sound (tee Noise), 1011 absorbers, 1028-1033 apparatus for measuring, 1014 attenuation, 1013 control, 1011 cross transmission between rooms, 1041 general problems, 1011 duct absorbers, 1026-1033 intensity, 1013 isolation, 1013 levels, 1012, 1021 measurements, 1014 outlet absorbers, 1026 pressure, 1011 unit, 1012 .. Space heaters, 436design, 437 rating, 436 Specific gravity, 4 Split systems, 8 Splitter dampers, 783 Spray apparatus, 867 booths, 1125 cooling, 871 cooling ponds, 875 cooling towers, 877 dehumidifier, 747, 871 distribution, 873 dryer, 1174 equipment, 867 generation, 873 humidifiers, 871-874 unit air conditioner, 663 Spread, air distribution, 760, 774 Square foot of heating surface, 8 Squirrel-cage induction 'motor, 994, 996, 997, 1004 Stack, stacks, 239, 253, 441 height, 8, 255 Standard, standards (see also Codes), 1261 air, 1 air distribution, 760 atmosphere, 63 Standard air, 1 Static electricity elimination, 1156 pressure, 7, 789, 826 regain, 811 Steady flow, energy equation. Solar heat, 296 absorbed by glass, 310 altitude, 297 calculation tables, 298-300, 304-308 ... through shaded windows, 321 time lag, 322 transmission of, 296 through glass, 309 through glass block, 314 through roofs, 301 through walls, 301 Solar heat gain, 296 basic principles, 296 Steam, 8 coils, S95{ 902 distribution piping, 524, 728 estimating consumption, 478, 726, 727 flow, 526, 527 flow measurement, 78, 740 heated equipment, 331, 726 heating systems, 8, 513 condensate return, 513, 735 connections to units, 552 control valves, 654. corrosion, 1081 drips, 550 flash leg, 551 XX Index to Technical Data Section Steam (continued) gravity one-pipe air-vent, 515 gravity return, 514 . Hartford return, 541 high pressure steam, 531 low pressure steam, 531 mechanical return, 514 one-pipe, 514 orifice, 522 piping for, 524 sub-etmospberio, 521 two pipe, 516 vacuum, 520 vapor, 618 jet type system, 925 meters, 78, 740 panel heating, 605 pipe capacities, 526-535 properties, 32, 49 reducing valves, 539 requirements, 478, 725 risen, 513, 530, 532 runout, 515 superheated, 8 tables, 32, 49 traps, 8, 545 valves, 554 velocity, 528, 729 Steel boilers, 416 Sterilization of air, J32 Stoker, stokers, 383 classification of, 383 combustion adjustments, 388 .. combustion.process, $85 controls, 391 furnace design, 389 mechanical, 383 overfeed flat grate, 387 overfeed inclined grate, 385 sizing and ratings, 390 traveling grate, 387 underfeed. 386 Sub-atmospneric systems, 521 Summer air conditioning sys tem, 287, 1221 . Summer climatic conditions, 291 bummer comfort, 126, 127 Superheated Steam, 8 Supply mains, 8 Supply openings, 484, 759 777 778, 1183 '* measurement of velocities o 1246, 1250 Supports, pipe, 698 Surface condensation, 217, 229, 233, conductance, 3, 173, 174 coefficients, 92, 173 external pipe, 674, 676, 708 heating, 8 extended,8 temperature, 214, 435. 613 614, 1242 ' Suspended unit heater, 646 Symbols, 12-15 air conditioning, 21 for drawings, 17 heating, 18 piping, 17 ventilating, 19 T Tables air changes, 245 air conditioning temperatures and humidities, 1142-1152 air leakage, 240, 242, 244 air requirements, 113 air, volume of, 32 air and water mixture, 26 allowable concentration altitude, pressure and tem perature, 63 Tables (continued) aluminum ducts; 818 analytical solutions for heat conduction, 107 anthracite size, 347, 348 anti-freeze, solutions, 638 atmosphere, standard for al titudes, 63 atmospheric gas, 1068 atmospheric impurities, 153, 1068 * attenuation between grille and room, 971 data, lining board, 1030 in straight ducts, 1027 of branches, 1028 of elbows. 970 of plate absorber, 1031 attic ventilation, 235 azimuth angle, 300 black body radiation, 96 boiler ratings, 419-421 bonnet pressure, 610 bonnet temperature, 506, 507 building load factors, 482 calorific value, 346, 357 364 370 ' ' capacity constants, unit heat ers, 648 capture velocities, 1118 carbon dioxide 375 cast-iron boiler rating. 421 ceiling temperature, 272 chimney damage survey, 461 chimney draft, 455, 466 - chimney efficiency, 453 circular equivalents of rectangular ducts, 797-799 classification of coals, 347 motors, 99$ water, 1066 climatic conditions, 263 291 coal analyses. 346 coal clasrification, 347 codes, 1261 coil heat emission, 598 combustible elements and compounds, 370 combustion rates, 425 comfort ranges, 123 condenser design data, 890 conductance, 93, 177-179 air space, 176 conduction problem solution 101, 107 ' conductivity materials. 91 177-179 contaminant, allowable in water, 1087 contaminant exhaust, 1098 convection conductances, 93 conversion equations, 15 conveying velocity, 1123-1125, coolg| *"wer performance, . cooling tower pipe size, 1206 copper elbow equivalents, 564 copper sheets, 818 copper tube dimensions, 676 copper tube surface, 676 correction factors steam radiator, 602, 603 unit heaters, 648 water radiator, 602, 603 corrosion resistance. 1136, 1137 coot of air conditioning 1092 degree-days for cities, 471-474 480, 481 design dry- and wet-bulb temperatures, 263-268.271 .288 291-295, 1142, 1193 design humidity, 1142-1152 dew-point, fuels. 378 draft in chimneys, 455 draft requirements of appliances, 456 duct attenuation, 1027, 1028 duct combinations, 498 499 duct gages, 817 duct joints, 816 XXI Tables (continued) duct pressure drop, 510 duct suing, 488, 491-499 duct velocity, 806 - duct weight, 818. dust concentration, 156, 161, 162 dust particle size, 153 efficiency, seasonal, 466 - elbow equivalent, 529, 564, 800, 1204 electric heating systems, 1050 electric water neaters, 1059 emissivity factors, 95, 96, 176 end reflection, 1031 environmental conditions, limits, 118 equivalent length of fittings, 502-504, 529, 1204 'equivalent temperature dif ferentials, 304, 306 exhaust, engines, 259 exhaust pipes for machines, 1122-1125 exhaust velocities, 1118,.1122- 1125 fabric filters, 861 fan outlet velocity, 838 fan speed, 838 __ fitting allowance, 488, 502, 629, 564, 591, 1204 fitting dimensions, 641-651 fixture flow, 1198 fixture units, 1198 flammability of gases and - ` vapors;`164;'165 flanged fittings surface, 708 flue gas dewpoint, 378 , fluids, compressible, 73 free convection, 94 friction loss, pipe, 409,527,628- 530, 632-536, 561 friction valves and fittingB, 629, 564,591, 1204 fuel combustion, 372 fuel consumption, 476, 477 fuel oil properties, 356 fumes, concentration, 161 gas analysis, 364 gas piping capacity, 409 gaseous fuel properties, 364 glnRfl block transfer, 212 glass sheet transfer, 212 graphical symbols, 17 grille area correction, 1027 heat absorbed, cooling water, 885 heat conductance, 93, 101. 177-179 heat equivalents, 282 heat flow walls and roofs, 184- 208, 304 heat gain appliances, 330 coil heat emission, 598 glass, 312, 313 glass blocks, 31tr-320 insulated cold pipes, 719 occupants, 328, 1104 . heat loss bare copper pipe, 708 bare steel pipe, 598, 707' basement, 275 floor, 277, 278 pipe coils, 598 radiation, 96 residence, 283, 285 room, 283 heat pump, 937 heat stress evaluation, 1107 heat transmission coefficients, 184-210 building construction, 184- 210, 304-308 doors, 213 glass, 212 roofs, 193-208, 308 walls, 184-192 water heaters, 1214 hot water demand, 1198, 1207, 1208. 1210 hot water pipe sizes, 561