Document pm3YY1k2DvBkr8mvbXreQVkwa

. ~ Heating Ventilating- Air Conditioning Guide [1943- Tables ' - ' air changes. 154 * ' ^ airconditioning temperatures and humidities. 818 air requirements. 199 air. Volume of; 24 altitude,-pressure and temperature, 70 anthracite, size. 301 ' area flanged fittings, 531 , areas of circles. 912 attenuation between grille and room, 775 -formula, lining board, 778 .'. , in straight ducts, 773 ./ . ' of elbows, 774 average maximum water main-temperatures, 654 black body radiation, 105 ' . ^. boiler ratings. 346, 347 rapacity constants x . blow-through unit heaters, 499 ' drawrthrough unit.heaters, 499 carbon dioxide tna-Hmiim, 304 ceiling temperature, 241 :circular equivalents of rectangular ducts, 752 circumferences of circles, 912 classification of coala. 300 motors. 620 water,885 climatic condition^, 234, 257 -.coalclassification. 300 .' combustible elements and compounds, 306 combustion air requirements, 304, 306, 307 combustion rates, 353 conduction problems, 107 conductivity materials, 99. 115, 531 copper elbow equivalents. 457 corrosion resistance, 839 degree-days for cities, 386 - densities, 911 -" design dry- and wet-bulb temperatures, 257, 258. . 259.260 draft requirements of appliances. 375 " dryers for evaporation of water, 841. duct attenuation, 773 ' ' dust concentration. 170,173 elbow attenuation. 774 . . -7- ' emissivity factors, 104 . end reflection,-777 environmental conditions, limits, 205 ' exhaust pipes for.machines, 830 factors influencing drying. 842 'fitting dimensions, 519, 520,' 521, 523, 524, 525, . 526 ! flame temperature data, 304 flammability of gases and vapors, 174 free convection, 100 factors, 101 - friction Valves and fittings, 869 fuel oil properties, 302 fumes, concentration, 174 gaseous fuel properties. 304 : heat"flow walls and roofs, 270. heat gain . appliances, 286 glass. 277, 279 glass blocks. 279 insulated cold pipes, 537 - heat loss bare' copper pipe, 529 bare steel pipe. 529 heat transmission coefficients, 105, 122, 125, 127, 529,531.537.880 ~ hot water demand, 875, 877 hot water pipe sizes. 458, 460 - humidities, industrial air conditioning, 818 _ infiltration through outride doors, 153 infiltration through walls, 150 infiltration through windows, 152 . inflammability, gases, 174 ' inride temperatures, 240 insulation factors, 531 iron elbow equivalents. 457 s maximum allowable concentrations ^ dusts, fumes, mists, 173 dusts, 173 meter performance, 869 . .metabolic rate. 209 minimum outdoor air requirements to remove odors, 199 -, Tables {continued) . - -. . ' moisture content for materials, 818, 821" noisq levels, 772 orifice .capacities. 427 - particulate matter, size, 168 . permeability to vapor, 291 - physiological response .. to gases' and vapors, 172 .. to heat, 203 pipe dimensions, 512, 513, 514 pressure loss - . ' refrigerant line. 701 . return intake, 742 properties of air, 24 ' flmmnnia, Q$Q carbon dioxide, 690 djchlorodifluoromethane. 686 fuel oil 302 . gaseous fuels,' 304 methyl'chloride. 688 . moist air, 24 v monofluorotrichloromethane, 691 - steam, 48 water, 36, 691 radiation, black body, 105 radiation factore, 104 . .. radiator.sizes,'473 ' ratio of specific heats. 79 regain of hygroscopic materials. 821. relation between metabolic rate and activity, 2k requirements for fuel,oil, 302 return pipe capacities, 433,434, 435,-438- screen mesh, 169 :* shading effect, 281- . sheet metal gages for ducts, 763, 765- ship practice. 860 ' smoke chart numbers, 194 sol-air temperature,' 268 -- solar radiation, 262, 263, 266, 277, 278 - specific heat of compressible fluids. 79 specific heat of solids, liquids, gases, 911 steady-state conduction problems, 107 steam consumption of buildings. 393 steam pipe capacities, .430, 431,433. 439. - . steam table, 48 summer design conditions, 254; 257 temperatures, industrial air `conditioning, '818 theoretical air requirements, 307' ' , thermal conductivity, 99.107 thermal convection conductance,. 103 therinodynamic properties moist air, 24 water, 36 transmissivity, glass,: 275 unit conductance, 103 . unit fuel consumption, 390 ''velocity, return intake. 742; ventilation standards, 261 water, properties,'36 'water requirements, 867, 875, 877 '" weight,of air,'24 '. '` - Tank, fanfeo expansion, 462, 468 Tax, pipe, ,350, 351 * Temperature, temperatures . absolute, 8 attic, 241 automatic control, 554,- 606 basement. 244 ' control for railway passenger cars, 852 'control service water, 880 design wet-bulb. 660 ' ... design temperature map, 239 dew-point, 53 . dry-bulb, 8 drying. 842 effective. 8, 207. 210, 211,-564 ground, 243hazards. 203, 205 industrial 255 inside. 233, 255, 858. 861 ceilings, high, 240 ' proper level. 239 mean radiant, 206, 563 measurement, 180 thermocouple, 181 thermometers, 180 xxn v." v Index to Technical Data Section Temperature, temperatures {continued) . operative, 563 outride, 232, ,239, 254, 255, 858 surface, 182, 363, 570 . thermodynamic wet-bulb, 52 unheated spaces, 242 . water main.654 wet^bulb, 8 Terminology, 1 Test methods, 180, 906 TjUerapy . : cold. 226 ... fever, 224 oxygen, 228 Thermal conductance, 112 conduction equation. 98 conductivity, 99,113 convection, 98 ' - - convection equation.'99 expansion of pipe,.515 interchanges,of body, 199 - radiation equation, 101 resistance, 7. 115,122 ' * - resistivity, 7,115, 122 steady-state conduction problems, 107 transmittance. 244 unit conductances for convection, 103 .Thermocouples, 181' Thermodynamics, 22 air and water mixture. 22 laws of, 8 wet-bulb temperature, 53, 660 Thermometers, 180 - alcohol, 180 dry-bulb, 180 globe. 193. 477, 577 Kata. 193 mercurial, 180, 477 . .resistance, 181 stem correction, 180 weUbulb.,191 Thermostat, 9, 607 : . room,,607 ; Time lag through walls and roofs. 269 Ton of refrigeration. 7,, ' ' ' . Total heat, 5 - Total pressure, 6 Tower, towers cooling, design, 665 cooling, performance, 671 . mechanical draft, 664 natural draft, 663 spray cooling, 658, 790 Transmission heat losses, 244, 262 - solar beat; 262 Transmittance, thermal. 9 ' Transportation air conditioning. 850 Trap, traps, 448 automatic return,- 448 ' bucket. 449 float. 449 impulse. 449 ' steam, 8thennostatic, 449 tilting.449 Traveling-grate stoker, 323 Treatment of disease, 217 Tube radiator, 7` Tunnel dryer, 846 Tunnels,' pipe. 546 Turning vane, 739, 755 Two-pipe system, 9 u Ultra-violet light, 171. 199, 218 Underfeed stoker, 323 Underground pipe insulation, 541 Unheated space temperatures, 243 Unit, units - air cleaners. 595 ' air conditioners, 639 application, 646 . ^ ' .' _ cooling. 639 . dehumidifying. 644 * filters, 595 humidifying, 495 - -ratings, 646' - types iff, 639 air coolers, 649 defrosting, 650 derign,-650 performance, 650 . ratings.'652 , - types of. 652 air filters, 595 ' . British thermal; 2 - dehumidlfiration. 676 direct-indirect heating, 3 - -/ fuel consumption, 381,'-384, 385; 390 beaters. 495 application, 496 boiler capacity, 504 capacity factors, .499 9 control. 501 direct-fired, 500 electric, 556 piping connections, 502 ratings, 497 ' T temperatures, 499' .1 types of, 495 humidifiers, 608 types of. 508 ... induction, 797 noise measurement, 769 systems, 495, 639 -ventilators. 495.' - . air exhaust vents, 508 .-r-'- -- - applications.. 507 capacity, 504 v' . control. 639 ratings, 504 window. 508 . J,. V Vacuum . . cooling unit, 705, 706 ' hiring pumps, 417, 424, 446 control, 447 piston displacement, 448 heating system, 9, 423 down-feed, 424 ' unit heater connection, 417, 502 Vacuum dryer, 845 . Valve, valves, 454, 525 automatic, 527 check, 525 control. 454' expanaipn, 700, 717 - . gate, 525 globe, 525 reducing pressure, 442 Vane, vanes, 730 . Vaned outlets, 739 Vapor, vapors, 167 heating systems, 9 < unit heater connection, 502 . pressure, 7 . Vaporizing oil burner, 332 Velocity. 9 exhaust intakes, 7.42, 829 hood, 829 njethod duct design; 757 pressure, 7 return grilles, 742 unit heater, 497 .' warm air duct, 407 . XXUl