Document MJ9qOw0BvmyodL74g7vzLJ6D7

HEATING VENTILATING AIR CONDITIONING GUIDE 1940 Fumes, 77, 778 toxicity of, 81 Furnace, furnaces, 364, 778 baffling, 365 boiler design, 242 capacity, 355 casings, 364 chimney sizes, 191 design for stokers, 208 fuel combustion, 163 gas-fired, 218 gravity systems, 349 mechanical systems. 349 volume, 173, 778 G Gafce Bourdon, 766 draft. 766 hook, 766 pressure. 766, 778 vacuum, 766 Garage, gas heaters, 219 ventilation, 647 Gas. gases. burner control, 664 burning furnace, 364 cleaning of, 512 combustion constants, 631 estimating consumption, 233 flue, analysis, 773 heat content,' 633 limits of inflammability, 79 threshold limits of, 617 toxic. 46 toxidty of, 81 Gas-fired appliances, 217 boilers, 218. 241 chimneys for, 198 combustion process, 220 controls. 220 conversion burners. 220 furnaces, 218 garage heaters, 219 . orsat test, 220 parlor furnaces, 219 radiant heaters, 219 radiators. 219 ratings for, 221 space beaters. 219 warm air radiators, 219 Gaseous fuels classification of, 175 combustion of, 176 flame temperature, 176 maximum carbon dioxide values, 163 products of combustion, 175 properties of. 176 theoretical air requirements, 161 Glass air leakage, 120 solar heat transmitted, 148 walls. 113 Globe, thermometer, 75, 724, 773 valves, 344 Grate area, 249, 778 Grate stokers, 199 Gravitational settling chambers, 512 Gravity convectors, 257, 263 A.S.H.V.E. code. 265 correction factors, 265 effect of superheated steam, 259 heat emission, 257 heating up. 261 *o1<w-tinn Gravity furnace systems, 349 Capacity, 355 design procedure, 349 leader pipe sizes, 350 proportioning wall stacks, 352 recirculating ducts, 353 recirculating grilles, 353 register selections,.353 return connections, 355 warm air, 778 (see Warm air heating systems) Grille, grilles, 529 (see Registers) air velocity measurement, 770 dampers, 542 deflection, 536 ejector effect of, 541 locations, 530 for mechanical furnace systems, 367 noise, 531. 572 selection of, 540 sound control, 533 types of, 541 velocity, 548 Guarded hot plate, 773 Gun type oil burners, 211 H Hay-fever, 77, 506 Health. 45. 80 Heat, 778 auxiliary sources, 135 of combustion, 159 content of gases, 633 content of refrigerants, 32 emission of appliances, 153 emission of occupants. 150 generated by motors, 153 infiltration equivalent. 125 latent, 31. 49, 57 of the liquid, 778 loss, 127 from bare copper pipes, 686 from bare steel pipes, 686 by convection. 717 from ducts, 694 by evaporation, 716 insulated pipes, 692 ` by radiation, 717 mechanical equivalent of, 779 outside air, 151 produced by cow, 647 . pump, 712 rate of production. 716 removal by natural ventilation, 644' -residence, loss example, 137 room load ratios, 387 sensible, 31, 49, 57 solar. 143 transfer, 85 of coils, 469 surface coils, 459 through building materials, 773 transmission, 143 coefficients, 85, 127 by convection, 683 by free convection, 685 by radiation, 683 utilization, 223 Heat gain, 141 appliances, 152 electrical heating equipment, 152 gas burning equipment, 152 glass, 148 insulated cold pipes, 698 for insulated ducts, 699 for insulated pipes, 699 ALPHABETICAL INDEX TO TECHNICAL DATA SECTION Heat gain (continued) latent, 143 light. 153 occupants, 150 outside air. 151 people, 150 roof, 143 sensible, 143 . A steam heated equipment, 152 wall. 143 Heater electric, 706 unit. 394 Heating, v for air conditioning units, 412 boiler surface, 243 boilers. 239 coils, 462, 758 cycle control. 654 design temperature, 134 district, 725 , domestic water supply. 710 floor, 718 fuel oil values, 632 garage. 646 load, 127 medium, 778 radiant, 715 surface, 778 extended, 778 prime. 778 square foot of, 780 value of gas, 135 High duty humidifiers, 492 ^ spray. 492 High pressure steam, 302, 731 Hill dust counter, 773 Homogeneous materials, 88 Hoods, 609 Hook gage, 766 Horsepower, air. 517 Hospitais,. air conditioning, 583 noise level, 563 operating rooms, 573 air conditions, 574 reducing explosion hazard, 573 sterilization of air, 576 ventilation requirements, 574 plumbing fixture water demand, 761 Hoc water boiler allowances, 760 cboonilesrusm, 2p3ti9on in bu.il.d.i.ngs, _76fl1t demand for plumbing fixtures, 761 domestic supply system, 752 electric heating, 710 heaters, 757 heating coil, 758 storage capacity, 760 storage tank sizes, 756 supply, 755 Hot water, domestic, boiler load, 247 boilers, 242 , control- of, 666 direct heaters. 242 indirect heaters, 242 lot water heating systems, 311, 778 direct return system, 312 elbow equivalents, 318 friction heads, 316 gravity pressure heads. 320 installation details, 326 mechanical circulators, 312 orifice friction heads, 322 pipe sizes, 312 reversed return system, 312 ^ Oinlm, rtf ninins. 311 ' Hot-wire anemometer, 75, 769 Hotel, hotels, hot water consumption, 761 plumbing fixture water demand, 761 Household stokers, 202 Human body, adaptation, 50 to cold conditions, 55 to hot conditions, 53 heat emission. 150 heat gain. 150 odors. 46 temperature, 49 weight loss, 54 zone of body cooling. 51 zone of evaporative regulation, 50 Humidification, 373 Humidifiers, 487 atomizing, 492 high duty, 492 unit, 409 Humidify, 778 Humidifying, for air conditioning units, 412 efficiency, 490 Humidistat. 369, 779 Humidity, 8, 45. 779 absolute, 8. 775 constant relative, line, 776 control, 651* for railway cars, 588 for drying. 624 . for industrial processing, 596 influence of, 71 measurement of. 772 permissible relative, 92 relative, 9 specific, 8 Hygrostat, (see Humidslat) I Ice refrigeration control, 667 systems. 456 Immersion thermostat, 650 Impulse traps. 285 Impurities. 77 Inch of water, 779 Indirect water heater, 758 Induction drier, 620 Industrial air conditioning, 595 electric heating, 712 exhaust systems, 605 (see Exhaust systems) process control, 668 processes, 595 humidities for processing, 596 temperatures for processing, 596 Industrial buildings, hot water consumption, 761 noise level, 563 plumbing fixture water demand, 761 Indirect heating units, 305 Infiltration, 117, 128 heat equivalent, 125 through shingles, 119 through walls. 118 through windows, 120 Inflammability of gases, 79 Insertion thermostat, 650 Inside temperature, 127, 129 Instruments, 763 Insulation, 714, 779 boiler, 256