American Society of Heating and Ventilating Engineers Guide, 1936 Semi-bituminous coal is fired as bituminous coal, and because of its caking characteristics it requires practically the same attention.

American Society of Heating and Ventilating Engineers Guide, 1936 provided with two or three valves operated by the action of the trap.

of and 1936American Society Heating Ventilating Engineers Guide, P = 0.0000000367 ( 1 + (1) (2) where P = loss in pressure, pounds per square inch. d = inside diameter of pipe, inches.

w American Society of Heating and Ventilating Engineers Guide, 1936 If the radiator is connected as shown in Fig. 11, with the heater connected to provide freedom of expansion, the heating circuit may be assumed to consist of a heater, 25 ft of pipe, 8 elbows, 1 radiator valve, and 1 radiator.

American Society of Heating and Ventilating Engineers Guide, 1936 AUTOMATIC HEATING SYS TEMS (See Heating Systems, Automatic) AUTOMATIC SHUTTERS (See Shutters, Automatic) AUTOMOBILE HEATER FANS E.

A m e r ic a n Society o f H e a t in g and V e n t il a t in g E ngineers G u id e , 1937 Table 6.

American Society of Heating and Ventilating Engineers Guide, 1937 Grate Area, Boiler Selection The required grate area may be determined by the following formula- where r- H FXEX C G = required grate area, square feet. .

American Society of Heating and Ventilating Engineers Guide, .1937 which appear to have possibilities for cases where the air to be cleaned is extremely dirty or where a higher degree of cleanliness is desired than can be obtained with an air washer.

Heating Ventilating Air Conditioning Guide 1938 Pressure, pressures (continued) measurement of, 807 partial, Dalton's law of. 1 refrigerating plant, 486 of saturated vapor, 12 static, 421, 828 steam, in direct heating, 765 drop, 278, 302, 307 initial, 302 in orifice systems, 290 saturated, 28 in sub-atmospheric systems, 289 total. 829 vapor, 31, 830 velocity, 830 water, 27, 789 Prime surface, 827 Processing, 621 cooling systems, 469, 621 industrial, temperatures and humidities for, 622 of textiles, 626 unit heaters, 444 Propeller fans, test code for, 534 Psychrometer, 827 sling, 811 Psychrometric, chart, 25, 60, 61, 62, (back cover) for drier, 654 explanation, 25 tests, 59 Pulmonary disturbances, 605 Pump, pumps, centrifugal, 334 characteristics, 181 circulating, 333 condensation return, 292 heat. 472, 749 vacuum, 293 Pyrometer, 810, 827 mercurial, 810 optical, 810 radiation, 810 i thermo-electric, 810 Q-R Quality, of air, 69, 70, 71 impaired by recirculation 83 Quantity, of air, measurement of, 811 necessary for ventilation, 70, 71, 72, 168, 609, 675 of cooling water, 511 Radiant heaters, 743 Radiant heating, 753 physical and physiological factors, 753 Radiation, 827 by black body, 759 ' drying with, 647 equivalent direct. 304, 828 heat loss by, 63, 76, 754 by human body, 63, 76, 754 load. 252 of pipe, 722 by radiators, 263 solar, 151, (see also Solar Heal) occlusion of, 84 through glass, 152 through walls, 152 ultra-violet, 75, 82 Radiator, radiators, 263, 827 A.S.H.V.E. code for, 271 column, 821 concealed, 821 condensation rate in, 267 connections, 320, 348 control of, 687 correction rating factors. 271 effect of superheated steam, 265 enclosed, 267 gas-fired, 223 Radiator, radiators (continued) heat emission of, 263, 270 heating capacity of, 270 heating effect of, 266 for hot water systems, 346 output of, 264 paint, effect of, 265 panel, 827 pipe coil, 263 ratings of, 264 recessed, 827 selection, 270 tube. 829 types of, 263 wall, output, 264 warm air, 223 Railway air conditioning,' 609 air distribution, 560, 610 > cleaning, 611 *" .

Heating VentiIiAting Air Conditioning Guide 1938 the use of the welding process.

Heating Ventilating Air Conditioning Guide 1939 average eye is around 50 microns all air floated material of this kind is too small to identify without the aid of the microscope.

Heating Ventilating Air Conditioning Guide 1939 10.Chapter Chimneys and Draft Calculations where Dt = theoretical draft intensity created by pressure transformer, inches of water. hi = draft loss due to friction in pressure transformer, inches of water. hp = draft loss through the fuel bed, inches of water. fcB = draft loss through the boiler and setting, inches of water. liBr = draft loss through the breeching, inches of water. hv = draft loss due to velocity, inches of water. hsd = draft loss due to bends, inches of water. he = draft loss due to contraction of opening, inches of water. ho = draft loss due to enlargement of opening, inches of water. hE = draft loss through the economizer, inches of water. hR = draft loss through recuperators, regenerators, or air heaters, inches of water.

Heating Ventilating Air Conditioning Guide 1939 be selected by size since surface conditions in service are always undeterminant.

Heating Ventilating Air Conditioning Guide 1939 ventilation a 2,000 fpm exhaust air velocity at the slot face is advisable In addition, the duct should not be required to draw the air laterally f0j a distance of more than 18 in. and the level of the solution should be kent 6 to 8 in. below the top of the tanks

Heating VenthiAting Air Conditioning .