Document K6kYmJqbRy13d493zxKLook4K

HEATING VENTILATINC AIR CONDITIONING GUIDE 1941 Fuel oil (continued) grade of, 160 heating value, 710 maximum carbon dioxide^values. 149 theoretical air requirements, 147 viscosity, 160 Fumes, 525, 794 Furnace, furnaces, 360, 794 - capacity, 351 casings, 360 design, 190, 224 fan, 794 gas-fired units, 199 gravity systems, 345mechanical systems, 359 oil-fired units, 195 stoker-fired units, 188 volume, 159, 794 G Gage, gages draft, 630 pressure, 630, 794 Garage ventilation, 725 Gas, gases burner controls, 623 chimneys for heating, 181 classification of. 161 cleaning of, 540 centrifugal separators, 540 cloth filters, 541 cyclones, 540 gravitational settling chambers, 540 combustion of, 162 estimating consumption, 215 fuel burning rate chart, 210 specific heat, 807 Gas-fired appliances, 199 boilers, 199, 223 combustion process, 202 controls, 203 conversion burners, 202 furnaces. 199 measurement of efficiency of combustion, 202 ratings for, 203 sizing heating plants, 203 space heaters, 201 - Gaseous fuels classification of, 161 combustion of, 162 flame temperature, 162 maximum carbon dioxide values, 149 products of combustion, 162 properties of, 162 specific gravity, 162 theoretical air requirements, 147 Glass solar heat transmitted, 132 Glass blocks coefficients of transmission, 97 beat gain through, 135 Globe thermometer, 68,637, 768 Graphical symbols for drawing, 803 duct* work, 804, 805 heating, 806 piping, 803 ventilating, 806 Grate area, 794 Gravity convectors, 239 codes, 247 concealed, 245 electric heaters, 751 heat emission of, 239 heating up, 243 selection, 246 Gravity furnace systems, 345, 794 capacity, 351 design procedure, 345 leader sizes, 346 proportioning wall stacks. 348 recirculating ducts, 349 recirculating grilles, 349 register selections, 349 return connection, 351 typical design, 355 warm air. 345 Grille, grilles. 557 {see Registers) locations. 558 for mechanical furnace systems, 363 noises, 564 railway car, 666 . recirculating, 349 types of, 569 Guarded hot plate, 637 Gun type oil burners, 193 Hay fever symptons, 661 Health. 528 Heat, 205, 794 auxiliary sources, 119 coefficients, 69 by convection, 727 by radiation, 727 of combustion, 145 emission of appliances, 136 emission of occupants, 135 flow through roofs, 131 flow through walls, 131 generated by motors, 137 humid, 794 infiltration equivalent, 109 introduced by outside air, 136 latent, loss. 109 of the liquid, 794 losses from bare pipes, 732 control of, 759 from ducts, 738 from insulated pipes, 736 mechanical equivalent of, 795 methods of, transfer, 69 production, rate of, 760 removal, natural ventilation, 722 residence; loss problems, 121 sensible, 796 sensible, loss, 109 total. 797 transfer. 473. 483, 492 boiler rates, 226 through building materials, 637 ' overall coefficient of, 484, 492 surface coils, 473 transmission, 727 Heat exchange measurement of,. 637 XVI f ALPHABETICAL INDEX TO TECHNICAL~DATA SECTION Heat gain, 125 appliances, 136 components of. 125 electrical heating equipment, 138 gas burning equipment; 138 glass, 132 through glass blocks, 135 ( insulated cold pipes, 742 for insulated ducts, 743 for insulated pipes, 743 latent, 127 light, 137 occupants, 135 outside air, 136 people, 135 . roof. 127 sensible, 127 steam heated equipment, 138 unit, 390 from various sources, 138 wall. 127 Heater, heaters, electric, 750 water, 785 Heating, for air conditioning units, 408 boilers, 221 surface, 791 boiler surface, 225 coil selection, 497 cycle control, 610 district. 307 domestic water by electricity, 755 electric, 749 hot water, 754 extended surface, 793 load. Ill calculations, 377 performance of coils, 484 physiological objectives of, 60 radiant, 759 {see Radiant Heating) steam systems, 249 vapor, 797 surface, 794 prime, 796 square foot of, 796 symbols for drawing, 806 vacuum systems, 797 warm air, system, 345, 359, 798 water, 769 High duty humidifiers, 506 Hood, hoods. 687 Horsepower, boiler, 792 Hospital, hospitals, air conditioning in, 664 noise level, 593 operating rooms, 653 1 air conditions, 655 f reducing explosion hazard, 653 sterilization of air, 656 ventilation requirements, 656 plumbing fixture water demand, 789 Hot water, boiler allowances, 788 boiler supply load, 229 consumption in buildings, 789 demand for fixtures, 789 electric heating, 754 ,, estimating demand by fixtures, 790 panel heating, 762 Hot water (continued) radiant heating, 762 storage capacity, 788 storage tanks, 784 supply boilers, 224 supply systems, 780, 783 Hot water heating systems, 291, 794 direct return system, 292 elbow equivalents, 298 friction heads, 296 gravity pressure heads, 300 installation details, 306 mechanical circulators. 292 orifice friction heads, 302 pipe sizes, 292 reversed return system, 292 systems of piping, 291 Hot-wire anemometer, 68, 633 Human body adaptation, 42 to cold conditions, 47 to hot conditions, 45 heat emission, 135 heat gain, 135 odors, 38 temperature, 41 weight loss. 46 2one of body cooling, 43 zone of evaporative regulation, 42 Humid heat, 794 Humidification, 503 control, 611 for mechanical furnace systems, 369 residence requirements. 370 Humidifier, humidifiers atomizing, 505 high duty. 506 spray. 506 units, 405 Humidify, 794 Humidistat, 794 Humidity, 794 absolute, 791 chart for drying work, 704 for drying, 702 influence of, 64 - measurement of, 636 nurseries for premature infants, 658 permissible relative, 99 ratio, 9. 794 relative, 19, 792 Hygrostat, 794 Ice systems, 466 Impulse trap. 266 Inch of water, 795 Induction drier, 698 Industrial, air conditioning 673 exhaust systems, 683 {see Exhaust Systems) processes, 673 humidities for processing, 674 temperatures for processing, 674 Industrial buildings hot water consumption, 789 noise level, 593 plumbing fixture demand, 789 XVII