708 Chapter 40 1945 Guide 10.Table Corrosion Resisting Materials for Exhaust Systems*1 MATERIAL Mbtaia Acsnc Chromic Hydro chloric Hydro fluoric Nitric- Phos phoric Sul.

798 ________________ Chapter 48 . 1945 Guide ' '' I" .

146 CHAPTER7 1946 Guide * Steam Coils For proper performance of steam heating coils, condensate and air must be continuously, eliminated and the steam must be evenly distributed to the individual tubes. ' This distribution is usually accomplished by individual orifices in the tubes, by distributing plates and orifices in the steam header, or by perforated internal steam-distributing pipes extend ing into the individual tubes.

166 CHAPTER' 7 1946\Guide hr ~ film coefficient of heat transfer between; fluid and internal coil surface, Btu per (hour) (square foot internal surface) (Fahrenheit' degree mean . temperature between fluid and surface).

264 CHAPTER 14 1946 Guide Equation 1 neglects-the effect of any interchange of air such as would take place through attic vents or louvers intended to preclude attic com densation.

608 CHAPTER 35 1946 Guide d-c Type 1.

686 CHAPTER 39 1946 Guide Table 6.

898 CHAPTER 50 1946 Guide - FLOW IN GALLONS PER MINUTE REFERENCES >--Methods of Estimating Loads in Plumbing Systems, by R.

924 1946 Guide Herman Nelson Corp., The, 992*993 John J.

SCREENS, Sun Reflecting SHEETS, Pure Iron' Martocello.

146 CHAPTER 7_______ i <- Then substituting values for Aa, A, and G, N may be found as follows: 10.7 X 151V _ 0.243 X 1740 = 2 5 fr0m Which> N = 6 58 1948 Guide (2) This establishes the maximum whole number of coil rows that can be used as 6 and it is now possible toi determine the actual location of the exit air conditions from Equation 7 by solving for the actual value of ti -- 1dpi for a 6 row coil. 10.7 X 15 X 6 , 102 - 80 0.243 X 1740 081 *i " fdps = 2.275 This establishes values of 9.78 for 7-----7^ = R and 2.25 for h -- fdm. h -- *dpi (3) Next, the exit air condition at 57.3 F dry-bulb and 56 F wet-bulb as shown at B, is found by locating a point on the load ratio line at q horizontal distance of 2.25 dry-bulb degrees from the saturation curve

292 CHAPTER IS *1948 Guide an ^1'xa7JlP^e 71.

486 CHAPTER 25 . 1948.Guide ' connections are led as shown.

j-.y i.-' 92 Heating Ventilating Air; Conditioning Guide j948*- RODWELL, Robert D.

Heating Ventilating Air Conditioning Guide 1949 'Pipe, piping {continued) economical thickness insula* tion, 591 expansion, 566 fittings, 561 fitting equivalent, 477, 505 flexibility, 566 hangers, 567 heat losses, 579 hot water heating systems, 603 inside dimensions, 562 insulation prevent freezing, 589 leader sizes, 436 low temperature insulation, 588 materials, 561, 982 overhead distribution, 467, 699, 954 refrigerant sizes, 775 . sizes, 471, 504 high pressure steam, 479 hot water forced circulation, 515 hot water gravity circula tion, 513 indirect heating units, 486 low pressure, 477 maximum velocity, 475, 510 one pipe riser, 478 orifice systems, 471 pressure drop, 478-483, 505 sub-atmospheric systems, 486 tables for, 480 two-pipe riser, 478 two-pipe vapor systems, 484 vacuum systems, 485 water supply systems, 947 steam distribution, 461, 595, 599 steam beating systems, 461 supports, 567 symbols for drawing, 17 ' tax, 380, 381 thread connections, 567 threads, 667 tunnels, 599 underground insulation, 596 unit heater connections, 462, 553 water supply, 947 Pitot tubes, 95, 200 Plate cell, 846 Plenum absorbers, 845 Plenum chamber, 6 Pneumatic control systems, 663 Pressure {continued) regulators, 486, 598, 664 static, 7 taps, 88 total, 7 vapor, 7 velocity, 7 Prime surface {see Healing Sur face), 8 Propeller fan, .631 Protective Coatings, 982 Psychrometer, 7. 53 Psychrometric chart, 226 Pump, pumps condensate return, 490 mechanical circulators, 503 vacuum hwating, 490 controls, 491 piston displacement, 491 Pyrometer, 7, 196 optical, 196 radiation, 196 R Radial flow fan, 631 Radiant drying, 914 Radiant heating, 615 application methods, 618 * calculation principles, 620 oontrol, 629 electric, 620 fundamental computations. 617 hot water, 618 mean radiant temperature. 615 measurement of, 628 objective, 617 operative temperature, 616, 628 steam, 619 warm air, 618 Radiation, 7 baseboard, 521 equation, 106 load, 380 shape factor, 106 Pollution of air, 179 Polyphase motors, 678, 685 Ponds, 717 Potentiometer, 6 Power, 6 Precipitators, 650, 657 Pre-cooling, 867 Preheating, 857 Premature infant nurseries, 239 Pressure absolute, 6 atmospheric, 1 gages, 197 foes, water supply 947 measurement, 197 barometer, 198 ` piping, - Radiator, radiators, 7, 521 baseboard, 521 codes, 524, 991 concealed, 523 connections, 499, 500 correction factor, 525 . direct, 7 effect of paint, 526 enclosed, 528 gas-fired, 366 heat emission of, 521 heating effect, 526 heating up, 528 output of, 521 panel, 6 ratings, 524 recessed, 7, 523 tube, 521 types of, 521 warm air, 366 Railway air conditioning, 927 air distribution, 928 air cleaning, 928 humidity control, 930 summer systems, 928 temperature control; 930 ventilation, 928 winter systems, 927.