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American Society of Heating and Ventilating Engineers Guide, 1925-26 under conditions of unrestricted flow of air to the ventilator, are given by., the equation: where Q=A X 36 X ^.H X (fl - lo) 6+ V + 20.

T a b le 14.

American Society of Heating and Ventilating Engineers Guide, 1926-27 No stoker will handle every class of fuel satisfactorily so that in selecting a stoker the engineer should take into consideration the type best suited for the fuel and operating conditions.

American Society of Heating and Ventilating Engineers Guide, 1928 RATING OF AIR WASHERS AND FILTERS Air washers and filters are rated as follows: 1.

American Society of Heating and Ventilating Engineers Guide,, 1929 Page Stokers self feeding devices 161 types of mechanical 161 Strainers oil 231 Styles of roof ventilators 477 Supply control of steam 203 Surface determination of net outside wall 46 heat insulation for pipes and 247 switch 204 Synthetic air chart 485 data sheet for 487 description of 484 making the test 485 plotting the test data for 488 recommended percentages based on 388 stations for making test 486 Systems air sealed or closed hot water 129 air valves for one-pipe gravity steam 81 application of fan furnace, to standard duct systems 190 application of warm air heating 167 boiler protection in vapor 85 < capacities of risers for one-pipe low-pressure steam 94 capacities of risers for two-pipe low pressure steam 94 central heating 203 connections for one-pipe gravity steam 81 description of piping for steam heating 80 design of gravity circulating warm-air heating systems 167 design problems of steam heating 79.97 designing a furnace heating 169 determining size of pipe in vacuum pump 106 down-feed of piping; 80 downward, of ventilation 361 exhaust ' 431 gravity for hot water supply 342 i gravity, of piping 80 one-pipe gravity steam 80,81 pipe sizes for hot water . 341 piping and connections for two-pipe gravity 82 pressure drop in water 336 return systems for two-pipe gravity 83 rule for design of pipe 116 specifications for heating 7 two-pipe gravity 82 up-feed of piping 80 upward, of ventilation 361 vacuum, of piping 80 -vadium pump 85 vapor 83.84 Vapor, of piping 80 vapor vacuum type 81 ventilation 379 venting valves, v^x>r 85 warm air heating 167 T Tables description of pipe size general data on pipe size Tank elevation of for industrial oil burning installations in oil burning sizes of storage in federal buildings Temperature air, at registers air in ventilation breathing line control of room difference drop in leaders dry bulb effective greenhouse heating humidity and-air motion incoming air in ventilation 89,93.95.97 * 88,89 339 231 226 301 350 169 359 4,5.6 262 360,473 170.171 370,371 357,359,371 215,216 367 360 Page inside air 4,5 inside for summer inside for winter 4,5; 6 measuring of duct 362 measuring of room 362 outside air 6. 7.8.9 outside in summer 7 outside in winter 6 performance data of regulators 275, 276 wet bulb 370. 371 Temperature and humidity control' 434 Theatres quantities of air for ventilation 358 Thermometers recording 362 Thermostats classes of 260 electric 272 pilot type 261 unit type 270 Transmission effect of humidity on heat 75 heat coefficients 9.10.13,21.47 heat, data 13 Traps air 309 alternating receiver type 309 arrangement of alternating receiver 309, 310 - arrangement of lifting trap 302,308 arrangement of return trap and receiver 307, 309 by-passes 306 capacity of 306 design of tilting 308 high-pressure 306,' 307 lifting 308 " low-pressure 308 oil 309 principle of operation 306 types of 306 uses of 306 Tumbler dryers 451 Typical installations of fan system 380 U Unit control industrial applications of 273 Unit heaters air vent in industrial 200 B.t.u. capacity of industrial 198 control of room temperatures in industrial 200 discharge outlets < 199 double automatic temperature control 272 for industrial service 391 industrial 197 of industrial 198 pneumatic control of 272 present day tendency of industrial 199 propeller fan type heaters 199 recirculating industrial heaters 198,199 suspended industrial heaters 199 .................. 197,199 use of industrial 197 Unit systems 389 application of automatic control 263 fan radiator units 263 for public buildings 389 ^ for school work 390 fresh air intakes 263 Unit type roof ventilators 474 Units air conditioning 200 dehumidifying work in air conditioning 201 design of air conditioning 201 direct fired 200 flow of air in air conditioning 201 kinds of heat emitting 65. 66 spray water in air conditioning ' . 201 Vacuum dryers Vacuum heating pumps air capacities ot air capacity measurements of air test 450 295 296 296 XU Alphabetical Index to Technical Data Section Page arrangement for 298,299 capacity of receiving tanks 295, 296 discharge from reciprocating vacuum heating pumps 1 298 location of receiving tank 295 piston speed 295 steam cylinder sizes of reciprocating vacuum pumps 298 steam driven vacuum pump size determina tion 297 type of drive 295 types of 294 typical connections 299,300,301 volumetric displacement rate 295 water capacity of 296 water cylinder sizes of steam driven 297,298 Valves 98 pressure reducing in central heating systems 204 vaporizing oil burner 222 Velocity air duct, for forced draft 163,164 air in public buildings 423 effect of air, on surface losses 254,257 general statement on temperature and wind 7 maximum 88 pressure readings 365 wind 20,47,48 Ventilating systems classification of 379 design of mechanical 359 Ventilation air changes 358 air cooling 360 air motion 359 air movement 366 air purity 359 air supply for 358 air temperature 359 anemometers 364 atmospheric dust 363 bacteria 363 COj determinations 363 control of 481 dairy stable 480 downward system of 361 dry bulb temperature 370,371 effect of air motion on comfort 369 effective temperature 357,359, 371 elimination of noise 361 equal comfort lines 368 factors affecting health and comfort 367 factors affecting loss of body heat 367 for personal comfort and health 362 freedom from gases 359 freedom from odors 359 functions of air 359 gages or manometers 365 general requirements of 357 heat from occupants, lights, etc. 360 human comfort 367 humidity 362 humidity readings 363 kata-thermometer 366 measuring duct temperatures 362 measuring of room temperatures 362 Ventilation mechanical exhaust 359 mechanical in federal buildings 351 natural 471 natural forces in 471 ozone in 441 physiological effects of 366 pitot tubes 364 problem of 360 problem of cooling 360 psychological factor in 361 - psychrometer 362 psychrometric chart with effective tempera- . ture lines for 368.378 Page psychrometric chart with effective tempera ture lines for 100 ft. air velocity 369 psychrometric chart with effective tempera ture lines for 300 ft. air velocity 370 quantities of air required for recirculation of air 358 361 recording thermometers 362 relative humidity 359 science of 357 smoke bomb suggestions in planning 366 473 synthetic air chart l 366 systems of temperature difference temperature, humidity and air motion ' 379 360 367 temperature of incoming air 360 testing air flow to obtain effective 364 479 total body heat loss. 367,368 . upward system of 361 use of comfort charts .370,371 velocity pressure readings 365 volumetric air measurements 364 wet bulb temperatures 370,371 Ventilator air-turbine 478 rotary stationary . 476 476 styles of rotary 478 various styles of 477 Viscous filters automatic operating principle of 439 436 Volumetric air measurements 364 W Warm air furnaces application of code to gas burning area of flue lining construction of gas burning 236 158 235 Warm air registers 174 Water amount through pipes 336,338 kitchen connections pressure drop in systems purification by ozone requirements for kitchens 326 336 448 324 risers 337 viscosity of 282, 283 amount of water passed through pipes 336, 338 Water supply apartment buildings, hot water require ments 341 apartment houses, sizes of mains and meters 338 branch sizes for fixtures and maximum flow 335,336 estimating pipe size for any part of riser 335,336 example of sizing of main 336 formulae 340 gravity systems 342 hospitals, water requirements for 342 hospitals, hot water, requirements for 342 hotels, hot water requirements for 341 mains, sizes of hot water 342 office buildings, hot water requirements for 341 pipe sizes, for hot, systems 341 pipes, size of for any pressure drop 338 principle in determining pipe sizes .335 risers for manufacturing buildings, hotels, etc. 337 risers for apartment houses 337 total pressure 335 water pressure 339 Wind action in ventilation 471 effect of movement velocity ` 47 47 20,47,48 Xlil

American Society of Heating and Ventilating Engineers Guide, 1929 VOLUMETRIC AIR MEASUREMENTS Volumetric air measurements must be made with skill and precision and great care must be taken in securing the right conditions under which such measurements are made.

Heaters, Electric Hoffman Specialty Go., Inc.

American Society of Heating and Ventilating Engineers Guide, Subject Titlb Heat Transmission Standard Test Code for Heat Through Walls Transmission through Walls3 Minimum Code of Minimum Require Requirements ments for Heating and Ventila tion of Buildings, Edition-1929 When Adopted January, 1927 June, 1925 Reference A.S.H.V.E

Air System Equipment cuSL.

134 Air System Equipment Unit Beaters;, ILG ELECTRIC VENTILATING COMPANY 2880 N.

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Jndex to Modern Equipment Dryers (See Drying Apparatus) Gages (See Gages, Vacuum) Heating Systems (See Beating Systems, Steam Vacuum) Hoffman Specialty Co., Inc.