Document jBaxXXwbn9m5wYz5wxJ1NGbXk

American Society of Heating and Ventilating Engineers Guide, 1930 high-temperature drying heat and humidity control internal moisture gradient low-temperature drying methods mechanism of drying moisture content calculations omissions in drying cycle radiant heat removal of free water selection of fans stages of moisture diffusion vacuum drying ventilation phase Ducts exhaust systems friction in elbows friction losses fundamentals of design installation insulation proportioning warm air furnaces, for Dust collectors conveyor pipes definition of determinations exhaust systems fans for collecting and conveying removal efficiency of air cleaners Page 471 481 479 471 469 474 .482 476 470 477 437 474 472 487 452 449 447 445 452 456 449 134 466 467 181 103 457 438 187 E Economic thickness of pipe insulation 416 Effective temperature 85, 93 Efficiency of employees, airconditioning for 160 Ejector type ventilators 115 Electric motors and controls for mechanical stokers 215 Electricity heating costs heat equivalents of hot water heaters hot water heating system storage system warm air heating system 247, 248 249 249 249 248 249 Enclosures, effect of on heat emission of radiators 280 Equilibrium moisture content in drying 479 Evaporation rate of temperature of , 166 162, 163 Exhaust systems, pneumatic air velocity calculations, conveyor pipes .design of hoods maintenance requirements of efficient operation types typical layout 459 464 467 467 468 458 457 464 Expansion and contraction of piping 306, 419 Expansion of solids, table of 518 Experimental technique in design of dryers 489 F Factory temperature control Falling rate period In drying Fans arrangement of drive centrifugal characteristic curves ' designation of > disc and propeller drying dust collecting and conveying 294 475 443 433 432 443 432 437 438 full backward curve'multiblade motive power selection ventilation Ferrous pipe Fiber saturation point in drying Filters, air Fittings, insulation for Flow of steam in pipes Flues, cleaning of Forced circulation hot water heating warm air heating Forward curved multiblade fans Friction in duct elbows Friction losses in air ducts Fuel oils for domestic heating Fuel saving with insulation Full backward curve multiblade fans Fumes, definition of Furnaces, warm air fan pressure arrangement of heaters description of design of fuels gas-fired residence system large buildings rating selection of heaters small buildings specifications for residence system Furnaces, warm air gravity calculating heat losses code for installing design of ducts forced or booster circulation grilles leader pipe sizes register area recirculating ducts and grilles size of wall stacks G Gas air for combustion boilers chimneys cross-connecting boilers control features conversion burners calorific value fuel costs insulation and weatherstripping requirements of buildings ratings for appliances selection of boilers space heaters table of properties warm air furnaces Generators, ozone Gravity circulation hot water heating warm air heating Gravity steam-heating systems definition one-pipe one-pipe down feed two-pipe vapor Gravity ventilating systems Greenhouse heating Greenhouse temperature control Grilles for warm air furnaces Page 435 439 436 436 299 477 184 416 334 274 379 148 434 449 447, 449 235 31 435 181 154 149 151 150 157 153 150 153 156 158 129 141 128 134 148 134 129 134 134 136 132 218 227, 228 258 230 230 224 217 219 224 220 229 228 228 522 227 494 367 127 331 341 343 343 345 119 499 296 134 via Alphabetical Index to Technical Data Section H Page Hand fired boilers Hartford return connections 211 360 Heaters _ . factors affecting heat emission selection of types of 277 285 281 Heat emission pipe coils radiators Heat exchangers 284 277 502 Heat losses air spaces areas where transmission losses occur air changes bare fittings bare pipe boiler feed pumps by infiltration by transmission calculating calking of frames computations, examples of condensation, prevention of in buildings 18 31 64- 416 405 309 60 12 5. 31 66 75 79 condensation on windows conductivities conductances effect of humidification fuel saving high ceilings , hot-box test hot-plate test heat required for infiltration heat sources heat loss computations, examples of infiltration through cracks infiltration through materials infiltration, calculations for infiltration due to temperature difference 82 19 19 6 31 7 12 19 60 73 75 61 60 67 68 inside temperatures 6 insulation, economic value of 31 metal sash windows, double hung 65 metal sash windows, rolled section 65 Nicholls heat meter 13 outside temperatures 9 radiation saving 33 Reitchels' formula 9 steel windows 65. 66 storm windows 66 stratification of air 7 surface coefficients 18 symbols and definitions 14 temperature at proper level 7 transmission coefficients by test 12 transmission coefficients by computation 14. 20. 35 wood sash windows, double-bung 62 weatherstripping, economic value of 70 wind movement 70 Heat output of radiators, unit of 276 Heating costs coal electricity gas oil 216 247 219 231 High ceilings, temperature of air at 7 High-pressure traps 328 High-temperature drying 471 Hill Dust Counter 103 Horsepower rating of chimneys 254 Horizontal feed stokers . 214 Hospitals cost of operating sterilizers open and closed sterilizers selection of sterilizers water and vent connections water requirements for 393 394 393 395 402, 403 Page Hotels water requirements for 402 Hot-box test 12 Hot-plate test 19 Hot-water heating systems comparison of gravity and forced systems 381 determining pipe sizes 372 expansion tank, location of 370, 385 forced circulation 379 gravity flow 367 maximum water temperature 369 optimum velocity of water 385 piping for 367 supply boilers 273 temperature drop through radiation 371 Hot water temperature control 297 Human comfort, air conditioning for 161 Humidification, effect of on inside temperature 6 systems 170 Humidifying efficiency of air washers 182 Humidity, effect of on heat emission 279 Hygroscopic materials moisture 169 476 I Idle boilers, care of Ignition systems for oil burners Impinger Induction type ventilators Industrial heating by oil auxiliary apparatus burners draft for industrial burners furnace Industrial processes, air conditioning for Infiltration calculations for due to temperature difference heat required for through cracks through materials Installation of air ducts of boilers of oil burners Insulation cold surfaces conductivities of building insulation conductivities of pipe covering duct economic thickness of pipe insulation economic value of building insulation electrically heated buildings fittings gas heated buildings hot water lines pipe covering factors prevention of condensation on pipes steam lines thicknesses of pipe insulation used Intermittent operation drying Internal moisture gradient in drying 274 237 103 115 245 242 244 244 159 67 68 60 61 60 452 268 240 79. 408 19, 23 411 456 416 31' 247 416 224 406 411 409 406 411 470 479 Kata thermometer K Kitchens connections for steam supply electricity required for cooking equipment required gas appliances, connections to return connections steam consumption steam pressure limits water connections water consumption Konimeter " 104 390 391 390 391 391 390 391 390 390 103 IX