1022 CHAPTER 45 1955iGoj3j - Design of Dilution Systems The first step in the design of a system employing the dilution metlP: is to determine as exactly as possible the nature and extent of the contanu/?

V:/' 1068 CHAPTER 47 / - { = air temperature, Fahrenheit 1955;G|ii{le^'^ i' = stock temperature, Fahrenheit. .

456 CHAPTER 18 1956 Guide Table 4.

516 CHAPTER 21 Table 12.

652 CHAPTER 27 . 1956 Gride offered as a guide to current practice in heating and air conditioning.

968 CHAPTER 42 1956 Guide ' S Another type of baseboard unit has glass panels 6 to 8 in. high and 30 to -S' 42 in. long, with surface operating temperature kept 'below 250 F

i i| i- :i f: ;i : i If; ; i !

1208 1956 Guide Coal-Heat, 1691 Domestic Engineering, 1092 Heating & Plumbing Equipment News, 1689 Heating Sc Air Conditioning Con tractor, 1693 Heating, Piping and Air Condition ing, 1694 Journal of Plumbing-Heating & Air Conditioning, The, 1693 Snips Magazine, 1695 PUMP CONTROLLERS (See Con trollers, Pump) Buffalo Pumps, 1604 Chicago Pump Co., 1606-1607 Crane Co. 1528-1529 Domestic Pump Sc Mfg.

CONTENTS (Concluded) SECTION V.

Heating Ventilating Air Conditioning Guide 1957 Tables {continued) instantaneous solar heat gain, 313,314,316-319 - insulation conductivity, 696 insulation factors, 704 insulation thickness, 708, 715 insulation to prevent freezing, 712 insulation, underground, 715 intake velocity, 776 iron elbow equivalents, 556 life of equipment, 1074 limits for contaminants, 164 load factors, 474 maintenance cost, 1076 maximum allowable concen trations - dust, fumes, mists, 158--161 dusts, 161,162 flammable gases, 158, 164, 165 gases, 158-161 vapors, 158-161 metal gages for ducts, 807,1109 meter performance, 1184 minimum outdoor air require- menta to remove odors, 113 moist air factors, 26 moisture content for ma terials, 1130 moisture regain, 1130 moisture transfer, 225 motor classification, 976 motor current, 977 motor design limits, 974 motor drive applications, 981 motor horsepower, 974 motor ratings, 983 motor speed range, 974 motor starting methods, 984 - motor torque, 981 motor voltage, 974 noise levels, 945, 946 octave frequency bands, 992 oil fuel specifications, 356 oil heat value, 356 operating cost, 1072,1074,1075 operating hours, 1077, 1208 orifice capacities, 517 outdoor air requirement, 113, 297 outlet velocities, 826 outside temperatures, 263, 291 owning and operating cost, 1072, 1075 panel resistance ceiling, 612, 615 floor, 619 floor covering, 620 particle size, 153, 154 particulate matter, size, 153 perimeter extended plenum branch duct capacity, 486 size, 489 perimeter loop system diffuser area, 481 duct capacity, 484 feeder diameter, 480 perimeter radial system feeder duct capacity, 483 perimeter system return duct capacity, 489 permeability to vapor, 225 physiological response to heat, 117 pipe application, 692 pipe capacity, 401, 519, 520, 522, 524-527, 529, 553, 929, 930 pipe correction factor, 633 pipe covering factors, 704 pipe dimension, 666 pipe fittings, 672 dimensions, 674-685 pressure ratings, 673 pipe insulation, 696 pipe roughness, 73 pipe surface. 666 thermal stress, 687, 688, 690 pipe volume, 571, 666 pressure loss area change, 791 Tables {continued) ducts, 502 elbows, 521, 556, 790, 1184 fittings, 480, 494, 521, 556, 1184 refrigerant line, 929, 930 registers, 500, 501 return intake, 776 velocity, 795 properties of air, 32-39 dichlorodifluoromethane, 901 fuel oil, 354 gaseous fuels, 360 moist air, 32-39 monochlorodifluorometh- ane, 903 monofluorotrichlorometh- ane, 904 steam, 49 trichlorotrifluoromethane, 904 water, 40-48, 585 radiation, black body, 96 radiation factors, 95, 595 radiation problem solution, 97 radiator neat loss correction factors, 594 radiator sizes, 588-590 rating air conditioning units, 659 rating steel boilers, 411, 412 ratio of specific heats, 73 refrigerant properties, 901,903, 904 refrigerant line capacity, 929, 930 refrigeration equipment selec tion, 933 regain of hygroscopic ma terials, 1130 register pressure loss, 500, 501 register temperature. 498, 499 requirements for fuel oil, 354 resistor heat output, 1043 return pipe capacities, 520,524, 525, 527 room temperature differential, 272 saturated steam, 49 screen mesh, 154 shading effect, 321 sheet metal gages for ducts, 807, 1109 ship design conditions, 1173 slime control, 1057 slime formers, 1048 smoke chart numbers, 1237 snowfall data, 625 snow melting systems, 629 sodium dichromate, 1061 soil conductivity, 173 sol-air temperature, 302 solar altitude, 298^300 solar azimuth, 300 solar declination, 300 solar heater design, 1199 solar brat gain, 304, 309, 312- 321 solar radiation, 298 sound attenuation, 1007, 1008, 1010,1011 sound level, 998, 1001, 1019 specific gravity factors, 402 specific heat of compressible fluids, 73 specific beat ratio, 73 spray pond design data, 863 steady-state conduction prob lems, 101 steam consumption buildings, 471, 720 equipment, 718 water heating, 719 steam conversion factors, 593 steam pipe capacities, 519,522, 524-527 steam pressure. 49 steel boiler ratings, 412, 413 summer climatio conditions, 291 xxu Tables (continued) summer design conditions.288, 291 surface conductance, 63, 174. 176 temperature, bonnet, 498, 499 temperature differential. 272 304, 306, 307 temperature, industrial air conditioning, 1118-1128 temperature, inaiA* 271 288 1118-1128 temperature limit for men, 118 temperature range, 290 temperature, summer, 291 temperature, winter, 263 thermal conduction problems, 107.113 thermal conductivity, 91, 173, 696 thermal convection conduct ance, 93 thermodynamic properties moist air, 32-39 water, 40-48 transmittance, glass, 312,313 unit conditioner rating, 659 unit fuel consumption, 468 unit^eater capacity factors, unit ventilator capacities, 648 upper temperature limits, 118 vanes in elbows, 790 vapor transfer, 228 velocity constantforairjet, 756 velocity, return intake, 776 ventilation rates for equip ment, 1100-1103 ventilation standards, 297 viscosity conversion, 631 viscosity effect on pump, 632 warm air ducts, 480-491 warm air fitting^ 494 water analyses, 1046, 1067 water cooling effectiveness, 871 water fixture flow, 1178 water main temperature, 856 water meter performance, 1184 water pipe capacities, 653 water requirements, 1187,1188 1190, 1209 weight of air, 32 weights of ducts, 808 wet collectors, 847 winter climatic conditions 263 W,nm design temperatures Tank, tanka expansion, 568-574 oil storage, 395 Tax, pipe, 403 Temperature, temperatures absolute, 9, 30 attic, 273 automatic control. 945. 1164 1167, 1171 * basement, 275 body, 113 ceiling 271 control for railway passenger car, 1164 control service water, 1195 design wet-bulb, 288, 291 869 dew-point, 9, 26 ' differential, 303 dry-bulb, 9 drying, 1157 effective, 9 floor, 272 ground, 275, 276 hazard, 117 industrial, 1235 inside, 271, 288, 1173 ceilings, high, 271 proper level, 271 mean radiant, 119, 120, 605 measurement, 1219 pyrometers, 1223 thermocouple, 1220 thermometers, 1219 Index to Technical Data Section Temperature, temperatures (continued) outside, 263, 291 proper level, 271 scales, 9 surface, 214, 426, 1222 thermodynamic wet-bulb, 26 unheated spaces, 275 , water main, 856 wet-bulb, 9 Terminology, 1 Test methods, 1219,1241 Testing codes, (see also Stand Traveling-grate stoker, 381, 383 Treatment of disease, 131, 137 Tropical air cooling, 136 Tube radiator, 8 Tunnel dryer, 1156 Tunnels, pipe, 725 Turning vane, 774, 790 Two-pipe system, 10, 509, 528, 555 u Ultra-violet light, 113,132,135, 156 Valve, valves (continued) expansion, 926 gate. 546. 680 globe, 680 reducing pressure, 531,683 relief, 568, 683 thermostatic air, 508 Vane, vanes, 752, 765, 774, 790 ratio. 10 turning, 774, 790 Vaned outlets, 774 converging, 766 diverging, 767 ards), 1241 Therapy cold, 143 - fever, 142 oxygen, 145 Therm, 9 Underfeed stoker, 380-382 Underground pipe insulation, 714 Unheated space temperature, 275 Vapor, vapors, 152 adsorption, 849 ' barrier, 220, 225, 233 flammable, 157 heating systems, 10, 510 pressure, 7 Thermal conductance, 169 conduction equation, 90 conductivity, 90, 169 convection, 89, 91 Unit, units air deanera, 831, 842 air conditioners; - 651 application, 658 cooling. 661 ( transfer, 220 transmission, 22Q unit heater connection, 643 Vaporizing oil burner, 389 Velocity, 10 convection equation, 91 dehumidifying, 655 capture, 1098 expansion of i>ipe, 686 integrator, 1236 humidifying, 655 ratingBj 658, 659 coil, 886, 891 conveying, 1100-1103 interchanges of body, 113 radiation equation, 92 resistance, 8, 170 remote units, 652, 656 sound isolation, 655 types, 651 , duct, 797, UOO exhaust intakes, 776, 1100-1103 hood, H00 steady-state conduction prob lems, 101 air coolers, 661 defrosting, 662 operating, 797, 826, 1098, 11001103 transmittance, 9, 278 design, 661 pressure, 7 unit conductances' for con vection, 93 performance, 661 ratings, 662 reduction method, 798 return -grilles, 776 Thermocouples, 1220 types of, 661 air filters. 831,837 British thermal, 2 unit beater, 639 Vena contracta, 84 Venetian blinds, 321 - air and water mixture, 25, 29, dehumidificstion, 655 32 direct-indirect halting, 3 Ventilation, 10, 111, 290 moist air, 26 fuel consumption, 457 animal shelters, 254-258 laws, of, 9, 23 heaters, 637 attic. 236 wet-bulb temperature, 26 application, 839 crawj spaces, 236 automatic control, 642 dairy stables, 255 Thermometers, 1219 boiler capacity, 645 garages, 258 alcohol, 1219 capacity factors, 640 Living space, 235, 290 dry-bulb, 1229 classification, 637 natural, 247 globe, 1236 control. 642 general rules, 253 Kata, 1231 mercurial, 1219 resistance, 7, 1222 direct-fired, 637 electric, 639 maintenance, 644 passenger bus in summer, 1166 railway passenger car, 1161 rules, 253 stem correction, 1219 outlet velocityt 639 ship. 1172 wet-bulb, 1232 piping connections, 642 symbols for drawings, 17 ratings, 639 systems, 677 Thermostat, 9, 951 temperature, 640, 642 walls and attics, 236 room. 958 types of, 637 wind forces, 248 Time lag through walls and humidifiers, 860 roofs, 323, 739 types, of, 860 Ventilator, ventilators, 252 Ton of refrigeration, 8 induction, 742, 743 control, 253 Total heat, 5 noise measurement, 992 roof, 252 Total pressure, 7 - systems, 637 unit, 645 ventilators, 645 control, 649, 967 Tower, towers. 863 air exhaust vents, 650 window, 650 cooling, design, 870 cooling, performance, 872 applications, 649 capacity, 647 Vertical blow unit heater, 637 mechanical draft, 865 natural draft, 863 control, 649 location, 649 Vertical openings, 246 sealing of, 240 selection, 875 ratings, 646 Vibration, machine, 959 spray cooling, 863 selection, 649 Viscous filters, 833 window, 650 impingement, 833 Transmission Unitary equipment, 637 Vitiation of air. 111 coefficient for heat, 5 definitions, 637 Volume heat losses, 275-279 Up-feed system, 10 control, 775 solar heat, 302, 309 furnace, 386,393 Tranamittanoe, thermal, 9 Transportation air conditioning, 1161 tempe

314 CHAPTER 13 1957 Guide Table 15.

456 CHAPTER 17 1957 Guide * Friction Factors for Pipe Flow, by L.

488 CHAPTER 19 1957 Guide Table 5.

r 4 I I [ 756 CHAPTER 30 1957 Guide V. = nominal velocity of discharge based on the core area, feet per minute: Ci = coefficient of discharge (usually between 0.65 and 0.90).

844 CHAPTER 33 1957 Guide 2.