Document X7J0O83gZKEEezrOXGpeJk9rw

Heating Ventilating Air Conditioning Guide 1956 Pump, pumps (continued) vacuum beating, 522 controls, 523 piston displacement, 523 Pyrometer, 7,1149 optical, 1149 radiation, 1149 R Radial flow fan, 763 Radiant drying, 1QS0 Radiant heating, (see Panel heating) Radiation, 7, 89 baseboard, 564, 566 equation, 92 finned tube, 565 load, 403 ratings, 566 nhsDfl factor. 95, 575 Radiator, radiators, 7, 561 baseboard, 564, 567 codes, 663, 566,1172 concealed, 563 . connections, 531 correction factor, 568 direct, 7 effect of paint, 569 enclosed, 569 heating, 569 heating effect, 567 output of, 561,568 panel, 6 ratings, 566 recessed, 8, 565 tube, 562 types of, 562 Railway air conditioning, 1089 air cleaning, 1090 air distribution, 1090 heating, 1089 humidity control, 1092 . refrigeration, 1090 ___ summer systems, 1090 temperature control, 1092 ventilation, 1091 winter systems, 1089 Reciprocating compressors, 869. Recording equipment, 000 Rectangular duct equivalents, 737 ,, . Reducing valves, 518, 680 Reflective insulation, 170, 178 Refrigerant, refrigerants, 8, 847, 849 dichlorodifluoromethane, 850, 851 feeds,834 monochiorodifluorometbane, 852, 853 monofiuorotrichloromethane, 854 pipe sire, 877 water, 862 > Refrigeration, 847, 1090, 1094 a__b_s_o_r_pteioonn system, 863 air cycle, 861 basic concepts, 847 complex cycles, 860 compressors, 869-872 condensers ( Condensers)', 872 control, 874, 876 coolers, 873 definitions, 847 discharge pressure, 858 - 1 equipment selection, 881 evaporators, 873 expansion valves, 875 float valves, 875 Refrigeration (continued) . beat pump, 666, 867 ice systems, 865 load, 275 mechanical, 847,855,1094,1102 piping, 877 reverse cycle, 848, 867 ship,1102 simple qycle, 845 steam ic, 861 subcooling, 858. suction, 857 superheating, 654 symbols for drawing, 17 theory, 847 ton of, 8, 847 types of compressors (see CompressorsJ, 871 vapor compression cycle, 854 volumetric efficiency, 859 water jacket, 858 Regain. 1026, 1028 control of, 1015 hygroscopic materials, 885 static, 751 Register, registers, (see Grilles), 463, 465, 476, 701. 719,726 air supply noises, 955 mechanical furnace systems, 476 noises, 717,955 selection, 463, 476,720 Reheat, 686, 698 Relative humidity, 5, 25, 52, 217 measurement of, 1158 KM. 1194 Residence control systems, 907 air conditioning, 907, 1129 domestic hot water supply, 1123 heating, 907 coaling methods, 492, 1129 gravity furnace systems, 263 heat low problems, 270 hot water heating system, 535 mechanical furnace system, 475 steam heating system, 493 Residential Air Condition ing. 1129 air distribution, 1133 application, 1131 central systems, 1131 equipment capacity, 1129' - equipment location, 1133 equipment types, 1130 noise, 1133 operating oosts, 1134 Resistance thermometers, 1148 Resistors, 963 Return grille, 465, 471, 726, 958 .mains, 8, 493, 512-515 openings, 465, 726 Reverse cycle refrigeration, 848, Reversed return system, 8,542 Ringelmann chart, 1162 Roof, roofs heat flow through, 179, 196199,289,292,296 time lag of solar radiation, 310 ventilators, 240 Room * air conditioners, 609, 1131 air motion, 702, 717 control, 908 coolers, 609, 614, 615, 619 <TOS8 transmission noise, 95S latent heat, 314,315 noise level, 945 operating, 138 sensible heat, 313 XX Rotary dryer, 1082 ___ Rotary oil burner, 376, 382' s Sanitary ventilation. 132 Saturated air, 1, 25 Saturation, 8 degree of, 8,25 measure. 7 Scale, 985 cause and prevention, 981, 985 closed systems, 988 , heating systems, 992 high temperature, 992 open systems, 990 temperature, 9 Schoolhouse Heating and Ventilating design factors, 1138 classrooms, 1138 direct radiation, 1142 economic, 1040 forced air, 1142 gravity exhaust, 1141 mechanical exhaust, 1141 panel heating, 1143 unit ventilator, 1143 general considerations, 1137 maintenance, 1144 operation. 1144 systems, 1141 Secondary air, 338, 354, .388 Sectional boiler, 395 Sensible cooling, 697 Sensible heat, 267, 275, 314 gain, 275, 314 loin, 267 Sheet metal gages, 757, 758 Ship heating, ventilation, air conditioning, 1100 air conditioning,1100,.1102 design conditions, 1101 factors affecting design, 1100 general consideration, 1100 - heating, 1100 insulation of ducts, 1100 ' refrigeration, 1091 requirements for space, 1101 cargo, 1102 living, 1101 machinery, 1101 storeroom, 1102 system*' typical, 1102 ventilating, 1100 SUica gel. 887 Silicon dioxide, 887 Single phase motors, 930 Slime, 983,992 . cause and prevention, 992 formers, 981 Slotted outlets, 711 Sludge, 981 cause and prevention, 992 Smoke, 8,154 abatement, 155,3J8 density measurements, 1162 Smokeless arch. 8 Smokeless combustion, 336 Snow melting, 584 antifreese characteristics, 588. circulating medium, 591 effect of viscosity, 589 , design, 584 ... ' draining, 591 drifting snow, 592. heat from slab, 587 .. heating requirements, 584 installation, 590 internal corrosion, 591 pumping head, 588 safety, 590 slab construction, 591 snowfall, 685 testing installation, 591 thermal stresses, 591 Soil specific heat, 174 Index to Technical Data. Section Solar constant. 8, 284 Solar heat, 284 . absorbed by glass, 300 altitude, 285 oba_ms calculation tables, 385-Zoo, 292-298 through sltaded windows, 308 time ifi 310 transmission of, 284 ^ through gia3S, 237,ou| through glass block, 3U3 through roofs, 289 through walls, 289 Solar heat gain, 284 basic principles, 284 design for figured rolled glass, 303 design for flat glass, 299, 302 design for glass blook, 305 deviation from design, 306 pVin^inff glass, 308 . Solar radiation. 284 absorption of, 284 magnitude, 284 Solar water heater, 1125 Sol-Air temperature, 289 Soot, 156, 336, 364 . Sorbents, 885 absorbents, 885,8S9 adsorbents, 885 Sound (see Noise), 941 absorbers, 950, 953 4 apparatus for measuring, 942 attenuation,.949 control, 946, 959 cross transmission between rooms, 958 . general problem, 942 . duct absorbers, 950,952,863 . intensity, 941 isolation, 613 levels, 942, 946 measurement, 942 outlet absorbers, 955 pressure, 941 ' unit. 941 Space heaters, 416 design, 417 rating, 416 Split systems, 8 Splitter dampers, 725 Spray - apparatus, 803 booths, 1047 cooling, 809 cooling ponds, 811 . oooling towers, 813 dehumidifier, 689, 807* distribution, 809 dryer, 1083 equipment, 803 generation, 809 humidifiers, 807-810 unit air conditioner, 613 Spread, air distribution, 702; 716 Square foot of heating surface, 8 Squirrel-cage induction motor, 924, 926, 927, 934 Stack, stacks, 227, 241, 421, 463 height, 8,243 waQ, 463, 466 ' smoke, 421 Standard, standards, 1167 air distribution, 702 .atmosphere,' 63. Standard air, 1 . Static electricity elimination, 1030 * pressure, 7, 731, 764. regain, 751 Steady flow, energy equation, 24, 67 Tables (coniinued) coils,'829, 838 . . ' distribution piping, 503, 674 estimating consumption, 456, 657, 672 flow, 505, 506 _ flow measurement, 78, 683 heated equipment, 317,672 beating systems, 483 condensate return, 493; 677 connections to units, 532 control valves, 533 corrosion, 991- . drips, 529 flash leg, 530 gravity one-pipe air-vent, 495 gravity return, 494 Hartford return, 495 high pressure steam, 511 low pressure steam, 511 mechanical return, 494 one-pipe, 494 orifioe; 502 piping for, 503 ^ sub-atmospheric, 501 two pipe, 496 vacuum, 500 vapor, 498 jet type system, 861 meters, 78, 683 panel heating, 571 pipe capacities, 506-615 properties, 32, 49 reducing valves, 518' requirements, 458, 672 - - runout, 495 . . superheated, 8 tables, 32, 49 traps, 524 valves, 533 velocity, 508, 675 Steel boilers, 396. Sterilization of air, 132 air duct size, 466 air leakage, 228, 230, 232 air requirements, 113 air, volume of, 32 allowable concentration gases, vapors, 158 dust, fumes, 160,161 altituae, pressure and tem perature, 63 aluminum ducts, 758 analytical solutions for heat conduction, 107 anthracite size, 333 anti-freeze, solutions, 588 atmospheric gas, 985 atmospheric impurities, 153, 985 , . attenuation , between grille and room, 951 - data, lining board, 953 in straight ducts, 949 of branches, 950 of elbows, 950 of plate absorber, 954 attic ventilation, 223 aiimuth angle, 288 black body radiation, 96 boiler ratings, 399, 400, 401 bonnet pressure, 489 building load factors, 462 ` calorific value, 332,344,348,356 Capacity constants, unit heat ers, 698 capture velocities, 1042 carbon dioxide maximum, 362 cast-iron boiler rating^402 ceiling temperature, 260 chimney draft, 435 .chimney efficiency, 433 circular equivalents of- rec tangular -ducts, 737, 738, 739 classification of coals, 333 Stoker, stokers, 387 hot water heating systems, classification of; 367 542 combustion adjustments, 372 motors, 926 oombustion process, 369 - water, 682 ' controls, 375 furoaoe design, 373 climatic conditions, 251, 279 coal analyses, 332 - mechanical, 367 coal classification, 333 overfeed flat grate, 371 . . codes, 1167 overfeed inclined grate, 869 coil Mat emission; 566 sizing and ratings, 374 combustible elements ' and underfeed, 370 -* compounds, 356 ' Sub-atmospheric systems,.501 oombustion rates, 405 Summer air conditioning: sys- - oomfort ranges, 123 torn, 275.1129 condenser design data,- 826 Summer climatic conditions, 279 conductance, 93, 170-173, 175, Summer comfort, 126,127 178, 179 Superheated Steam, 8 . . V Supply mains, 9 ' . Supply openings, 476, 701, 718, 720, 955, 1091 measurement of velocities, 1152,1156 Supports, pipe, 648 air space, 170. 178.' conduction problem soultion, 101, 107 conductivity materials, 91, 171-175,178.179' contaminantexhaust, 1042 convection conductances, 93 conversion equations, 15' Surface .'' ' condensation, 205.217,221,656 conductance, 3, 170,177 coefficients, 92, 170,662' - external pipe, 624, 626; 654 heating, 9 extended,9 temperature, 202,415,580,1148 Suspended unit heater, 596 oonveying velocity, 1044-1047 cooling coil arrangements, 839 on1ing tower performance, 824 <v%nKng tower pipe size, 1114 copper elbow equivalents,* 537 copper sheets, 758 oopper tube capacity, 540 copper tube dimensions, 626 oopper tube surface, 626 correction factors ' Symbols, 12,13,14,15 air conditioning,' 21 for drawings, 17- ' heating, 18 piping, 17 ventilating, 19 steam radiator, 568 unit heaters, 598 water radiator, 568 corrosion resistance^ 1156 - cost of air conditioning; 1006 - decibel scale. 943 degree-days for cities, 451-454, 460-461 design dry- and wet-bulb Tables air changes, 233 . air conditioning temperatures temperatures, 251, 259, 276. 279, 1016, 1101 design humidity. 1016-1028 and humidities, '1016-1026 . XXI