Document Q6B0EJoyOJyq8w67qkkLeJQ6

Heating Ventilating Air Conditioning Guide 1939 Capacitor motor, 722 . Capillary moisture, 669 Carbon dioxide, 86 concentration in air, 70 as corrosion agent, 880 as an index of, combustion, 168, 217, 226, 239 draft loss, 198 odors, 60 measurement of, 831 as a refrigerant, 39 Carbon monoxide, in air, 82 in garages, 696 poisoning, 82 produced by gas, 289 produced by oil burners, 226 produced by stokers, 218 Carnot cycle, 469 Cattle, heat and moisture, produced by, 696 Ceilings, heat transmission, 109 Central comfort air conditioning systems, 415 air distribution, 420 classification of, 416 cooling cycle control for, 707 design of, 418 heat load ratios, 425 location of apparatus, 428 ratings of, 423 selection of equipment, 423 zoning, 427 Characteristics-of motors, 724 Charles' law, 7 Chemical reactions, control of, 646 Chimney, chimneys, 185 areas of, 193, 197 characteristics, 188 construction of, 201 effect. 688, 836 for gas beating, 202 gas temperature, 190 performance, 192 sizes. 193, 194, 197, 204 Venturi, 186 Chorea, 621 Cleaners, air, (see Air, Cleaning Devices) Clearance, window sash, 122 Climatic conditions, 136 Coal, (see also Anthracite, Coke, Lignite) air speed for conveying, 660 analysis of, 172 bituminous, 170 burning rate chart,' 234 calorific value, 173 classification of, 172 dust, disposal of; 77 dustless, 179 pulverized, 178 semi-bituminous, 178 size of, 174 Coal burning systems, automatic control of, 715 automatic firing equipment, 207 boilers, 249 combustion rate, 400 draft required for, 198 furnace requirements, 401, 406 stokers, 207 Codes A.S.H.V.E. codes and standards, 864 for grinding, polishing, and buffing wheels, 654 for proportioning warm air heating plants, 227 for rating air conditioning equipment, 432 Coefficients of heat transmission, (see Heat Transmission, Coefficients) Coils, applications, 601 cooling, 412, 511 dehumidifying, 506 direct expansion, 498 evaporator, 412 Coils (continued) flow arrangements, 500 heat transfer, 503 heating, 510 hot water, 410 performance, 509 pipe, 328 preheater, 416 radiator, 269 reheater, 416 Steam, 497 water, 497 Coke, 173, 215 combustion of, 178 Cold, effects on human body,.53 Collectors, dust, 661 Column radiator, 836 Combined system, air conditioning equipment, 416 * Combustion, 163 air required for, 163, 166, 167 constants, 677 of different coals, 169, 171, 174, 215 in driers, 673 of gas, 181, 225 of oil, 179 rates for heating boilers, 260 smokeless, 253 . . with various stokers, 215 Comfort, 55 chart, 62 conditions of, 145 effective temperature, 58, 69, 60 heating for, 769 line, 61, 63. 64, 66, 836 for men working, 64 optimum air conditions for, 60 school children, 63 zone. 60. 837, (see also Zone, Comfort) Compensated cooling control, 709 Composition of water, 27 Compound wound motor, 719 Compressed air, 622 Compressors, 464 - control of, 717 reversed refrigeration, 489, 766 types of, 465 Condensation, on building surfaces, 139 meters, 791 prevention of, 139, 760 rate in radiators, 273 return pumps, 299 - in steam heating systems, 281, 807 Condenser, 475 design data, 475, 529 performance of, 475 types of, 476 water temperatures, 529 Conditioning and' drying, 645, (see also Air Conditioning) Conductance, 88, 90, 837 of-air spaces, `88, 91 of building materials, -95 of insulation, 95, -789 surface, 90 Conduction, 837- drying by, 665 heater, 768 Conductivity, -88, 90, 837 Conductor, 8?7 Conduit, 783 Constant relative humidity, 837 Constant speed motor, 720/ 724, 725, 726 Constant temperature drier, 668 Construction code for low pressure boilers, 264 Contours, velocity, 655 Control, controls, 699, 837 of air conditioning equipment, 479, 699, 704, 716 combined system, 704 split system, 705 apparatus, 700 XU Alphabetical Index to Technical Data Section Control (continued) automatic, 404, 699, 713; 714 gas burner, 714 oil burner, 714 stoker, 715 compensated cooling, 709 of cooling units, 711 domestic hot water, 716 of draft, 187 of electric motors, 726 electric systems, 702 of electrical heating, 766 of fans, 559 modulating, 703 moisture content, 643 of natural ventilation, 691 of noise, 602 of oil burning equipment, 714 pneumatic system, 702 positive acting, 702 pressure, 701 railway systems, 630, 631 rate of biochemical reactions, 646 rate of chemical reactions, 646 rate of crystallization, 647 of refrigeration equipment, 714 compressor, 714 ice. 717 vacuum, 717 well water, 718 of regain, 642 of relative humidity, 701 residential, systems, 715 room, 703 self-contained, system,- 702 of sound, 601 of steam heating systems, 291 of temperature, 699, 766 types of, 702 unit, 220, 699, 766 of vacuum pumps, 302 zone. 298, 704 Convection, 837 Convectors, 269, 275, 837 A.S.H.V.E. code for, 277 connections for, 328 correction rating factors, 277 design of, 275 drying by, 666 Cooling coils, 493, 511 D Dalton, law of partial pressures, 1 Damper, dampers, apparatus which operates, 699 control. 691 in duct systems, 404 motors, 701 types of, 404 Decibel, 601, 837 Defrosting coils, 447 Degree-day, 837 base temperature for, 240 methods of estimating fuel consumption, 240 records for cities, 240 Degrees, perspiration, 71, 73 Dehumidification, 11, 416, 463 by absorption, 486 by adsorption, 484 effective temperatures for, 64 methods of, 423, 449 by refrigeration, 463 relative humidities for, 64 Dehumidifier, dehumidifiers, 415 alumina, 485 in central air conditioning systems, 416 in industrial air conditioning, 521 silica gel, 485 types of, 449, 625 . Density, 3, 837 of air, 6 of saturated vapor, 12 Density (continued) specific, 3 of water, 27 Dermatitus, 622 Design conditions in industrial conditioning, 639 Design temperature, dry-bulb, 146 wet-bulb, 146 Dew-point, 838 relation to relative humidity, 9 temperature, 2 . Diameter, circular equivalents oi rectangular ducts, 600 Diarrhea, 618, 619 Dichlorodifluoromethane, 35, 37, 467 Diptheria, 50 Direct current motor, 719 Direct-indirect heating unit, 838 Direct radiator, 838 Direct return system, 338, 838 Dirt pockets, 334 Disease treatment, . air conditions for, 617, 618, 621 allergic disorders, 622 anesthesia, 615 artificial fever, 620 classification of' diseases, 620, 623 diseases treated, 60, 6iy, 618, 621, 622, 628, 625 explosion hazard, 615 fever therapy, 620 filtering in, 618 hospital air conditioning, 625 nurseries, 618 operating rooms, 615, 616 oxygen therapy, 623 premature infants, 618 satisfactory air conditions, 618, 621 ventilation rates, 616, 620 Distribution of air. 565, (see also Air, - Distribution) District heating, 781 conduits, 783 meters, 790 pipe, (see also Piping) distribution, 781 returns, 783 sizing, 782 rates, 793 steam consumption, 792 tunnels, 786 Diverter, back draft, 203 Domestic oil burners, 220 Domestic stokers, 210 Domestic supply, hot water, 763, 816 control, 716 load. 259 water, 799 Doors, air leakage through, 125 coefficients of transmission of, 115 Down-feed piping systems, (see Steam Heating Systems) Draft, 185 available, 188, 192 back, diverter, 202 dimensions, 202 calculations, 185 capacity, 187 control, 187 equation, 193 gage, 824 head, 838 intensity required, 174, 197 losses, 197 in chimneys, 198 through fuel bed, 196 mechanical, 186 natural, 185 requirements. 171 theoretical, 188 Drain connections, 266 Drawing, symbols fot, 851