Document npNXqpn1z1ON9Qb4Ez9mb0R56

Heating Ventilating Air Conditioning Guide 1951 Fan, fans (continued) laws, 693 motive power, 703 noise generated, 696-698, 870 - performance, 695 radial flow. 691 selection oft 703 air conditioning systems, 703 industrial exhaust systems, - 951 speed, 693 . . . system characteristics, 699' volume control, 702 - Fanning formula, 75 Fever therapy, 148 equipment for production of, 149 Film conductance, 98, 173, 182, 767 Filter, filters, 709 . air conditioning units ,558,563 dry air, 709, 712 , 982 dust, 710 . installation, 716 performance, 713 selection, 715 testing, 713 . viscous automatic, 711 . viscous impingement type,. 710 Fittings, 433,446, 578-586 pipe allowance, 433, 436, 475, 503, 950, 1003 Flexible mountings, 883 -Float trap, 490 Floor cooling unit, 559 heat transfer coefficients, 197, 198 unit heater, 545 . Flow coefficients, orifices, 83 compressible fluids, 79 critical, 82 measurement head meters, 84 liquids, 84 orifices, 84 Pitot tube, 90, 1027 steam, 88 variable area meters, 91 Flow meters, 84, 611, 1004 Flue gas loss, 330 Fluid flow, 73 theory, 73 Fluid meters, 84, 611 Fog, 4, 158 Force, 4 Forced air heating system, 439 . circulation pipe sizes, 502, 506 convection, 96, 99, 765 Free convection, 98, 100 enthalpy, 4 Friction loss air ducts, 454, 655-657 circular pipes, 75 elbows, 433, 446. 475, 503, 950, 1003 gas piping, 362 non-circular pipes, 78 refrigerant piping, 805, 806 water heating, 502 water piping, 502, 1000-1002 Fuel, fuels, 317 burning equipment, 343, 367 classification,.317, 320, 321 consumption, 413 Fuel, fuels (continued) degree-day method, 416 load factor, 427 maximum demands, 427 seasonal efficiency, 427 firing methods, 333-337 ' unit consumption, 422, 423 utilization, 382 Fuel oil. 321 carbon residue. 321 classification ox, 321 combustion of, 355 grade of, 321 maximum carbon dioxide val ues. 329. 357 theoretical air requirements, 328 ' viscosity, 322 Fumes, 4, 157 Fundamentals, heat transfer, 95 Furnace, furnaces, 4, 381 capacity. 383 - casings, 387 cast iron, 383 design, 386 efficiency, 386 fan, 382 foroed warm air, 382 gas-fired units, 386 gravity warm air, 381 heating surfaoe, 384 - heavy duty, 382 humidificationequipment, 387 materials, 383 mechanical warm air, 382 controls, 448 cooling methods, 456 oooling Bystem, 457 dampers, 441 ducts, 441 fans, 382 filters, 382 . method of designing, 442 motors, 382 ratings, 385 oil-fired units, 382 rating, 383 steel, 383 stoker-fired units, 344 types, 383 _r_7_l- A 4CA 4t7 G Gage; gages draft, 1025 pressure, 7r 1026 Garage ventilation, 231 Gas, gases, 158,164 atmospheric, 158, 164; 899 burner controls, 827 chimneys for heating, 406 classification of, 321 combustion of, 326, 328, 339, 361 estimating consumption, 421 __ expansion factor, 87, 88 * . heaters, 391 pipe size, 363 solubility, 900 space heaters, 391 specific heat, 5 . Gaseous fuels classification of, 321 - combustion of, 326 grades, 323 - #- maximum.carbon dioxide val ues, 329 products of combustion, 326 properties of, 324 xvi Gaseous fuels (continued) specific gravity, 324 theoretical air requirements, 327, 328 typical analyses, 324 Gas-fired appliances, 358 ' boilers, 359 - . combustion process, 361- controls, 363 - conversion burners, 358 furnaces, 386 - measurement of efficiency of combustion, 361 ratings for, 362 wiring heating plants, 362 space beaters, 359 Glass coefficient of transmission, 203 . heat absorbent, 292 shading of, 297 solar heat transmitted, 286292 window transmittance, 288 Glass block walls coefficient of transmission, 203 solar heat gain, 293-295 Globe thermometer, 1036 Graphical symbols for drawings, .17 air conditioning, 21 duct work, 19 heating, 17 piping, 17 refrigerating, 21 ventilating, 19 Grate area, 5, 377, 382 Greek alphabet, 14 , Grille, grilles, (see Registers), 431, 440 air supply.noises, 879 . attenuation, 873 exhaust, 442, 650, 882 locations, 440; 644 door, 651 floor, 651 wall, 651 mechanical furnace systems, 440 noises, 650 railway car, 983 recirculating, 983 return, 431, 440, 650 selection, 880 velocity, 440, 648Ground temperatures, 244 . Guarded hot plate, 1035 Gun type oil burners, 351 H Hangers pipe, 577 Hartford return connection, 459, 461,486 . Hay fever symptoms, 150 . Health, 137, 934 . area transmitting surfaoe, 1013 auxiliary sources, 251, 302 . balance, 330 oombustion, 318, 323,324, 327 Index to Technical Data Section Heat (continued) Heater, heaters Hot water systems (continued) emission of direct-fircd unit, 545 one-pipe appliances, 304 electric, 548, 887 foroed circulation, 511 occupants, 122, 126, 127, 302 solar water. 1017 gravity circulation, 511 exchange measurements, 120 unit, 545, 888 orifice motion heads, 507 flow resistance, 105,174 vertical blow unit, 547 pipe sizes, 503 flow through roofs, 190; 199- forced circulation, 501 202, 280-284 gravity circulation, 501 thpAii.h nralle 971 Wt. gain, 257 generated by motors, 303 humid, 5 infiltration equivalent, 300 instantaneous load, 266, 299 introduced by outside air, 300 Heating air conditioning units, 559 boilers, 367 . surfaoe, 2, 369 coil selection,' 759 district, 605 domestic water by electricity, 891 piping design, 508 pressure head, 502 . reversed return system,'508 . systems of piping, 505 two-pipe forced, 513 gravity, 512 zoning, 518 latent, 5,249,257,266,302, 303, effect, radiator, 525, 526 \ 304, 308, 312, 313, 314,- 619, liquid, 5 mechanical equivalent of, 6, 15 methods of, transfer, 95 radiant, 98, 101,102, 519 removal, natural ventilation, 222 sensible, 5, 248, 257, 266, 302, 303, 304. 308, 312, 313, 314, 619, 630 factor, 618 specific, 5 electric, 887 hot water, 890 load, 233, 374, 621 performance of coils. 765, 1013. reversed cycle refrigeration, 793 steam systems, 459surface, 9 square foot of, 8 symbols for drawingrJ7 up the radiator, 528 vacuum systems, 9, 466 vapor, 10, 464 warm air system, 10, 429, 439 Human body acclimatization, 124 adaptation, 120 cold conditions, 125 hot conditions, 125- heat emission, 119,120,''122/303 high temperature hazards, 123 . metabolic rates, 122,129 odors, 119 temperature, 119 zone of evaporative regulation, 120 Humid heat, 5 transfer, 95, 173, 519, 589, 683, 765 boiler rates, 369 overall coefficients, 95, 173, 174,519,765,1013,1014 surfaoe coils, 760 water, 485, 997. Heavy duty fan furnace, 382 High duty humidifiers, 731 High temperature hazards, 123 Hood, hoods, 940 Horsepower, boiler, 2 Humidification, 545.727, 732 control, 448, 823 direct, 729 forced furnace systems, 367- symbols, 12, 100, 173 - - through building materials, 173 water coils, 1014 Hospltal.-hospitals air conditioning in,' 137 operating rooms, 144,145 air conditions, 145 Humldlfier, humidifiers air washer, 725 atomizing, 731 high duty, 731 spray, 732 Heat gain, 257 }' - appliances, 304 ceilings, 275 reducing explosion hazard, 144 sterilization of air, 137 ventilation requirements, unit, 732 ' Humidify, 5 Humidistat, 5 components of, 257 ducts, 621 145, 146 Humidity, 5 h electrical heating equipment, 304 ' absolute, 5 control, 824, 984 floors, 299 Hot water influence of, 130, 147 gas burning equipment, 306 boiler supply load, 375, 997 - measurement of,-1033 glass, 286 coil surface, 1013 nurseries .for premature in - glass blocks, 290 demand per fants, 147 - . infiltration, 300 . instantaneous, 299 y latent, 266, 630 lights, 303 fixture, 1009, 1010 person, 1008 electric heating, 890 heat pump, 1019 ratio, 5, 25 ` relative, 5, 29, 619 Hygrostat, 5, 824 moisture, 307 occupants,.303 outside air, 302 heating surfaoe, 1013 indirect heater, 1011 methods of heating; 1010 partitions, 299 people, 126, 302, 303 roof, 275, 278 - sensible, 266, 630 shaded windows, 297 solar, 257 steam heated equipment, 305 panel heating, 531 service, 997 service piping, 1015 solar heaters, 1017 storage tank, 1007 ` ` supply boilers, 368, 890, 1010 Ice systems, 792 Impulse trap, 493 Inch of water, 5 Induction units, 623 high pressure types, 624 low pressure types, 623 various sources, 251, 308 piping, 1014 ventilation, 300 wall, 275, 278 temperature control, 1015 Industrial air conditioning, 927 I -Hot water heating systems, conditioningand drying, 932 contaminant control. 935 Heat loss air change, 248 . bare pipe, 522, 589 basement, 245 duct, 683 5, 501 circulation head, 501, 502, 509. classification, 505 direct return system, 506 elbow equivalents, 503 control of chemical reac tions, 932 - dilution systems, 935 general requirements, 927' humidities, 928 infiltration, 248 insulated pipe, 591 latent, 249 -. expansion tank, 514 forced circulation,'502, 505' . friction heads, 502 laboratories, 934 machining tolerance; 933 - moisture content and regain ' residence problems, 255 ` sensible, 248, 630 through ceilings and roofs, 248 to sky, 198, 273 ' transmission, 173, 248 Heat pump, 776, 793, 1019 gravity, 505 available head, 501 , circulation, 601 pressure heads, '501 installation details, 517. mechanical circulators, 511 930 . polished surfaces, 933 process, 927 safety, 934 static electricity, 934 ' temperatures, 928 XVII