American Society of Heating and Ventilating Engineers Guide, 1930 Figs. 36 and 37 show typical connections to indirect cast iron convectorheaters, and apply to vapor and vacuum systems especially.

American Society of Heating and Ventilating Engineers Guide, 1930 CONTROL OF THE DRYING OPERATION Circulation Control Circulating air or gas currents must-have a sufficient velocity over the surface of the material being dried to transfer the heat required for evaporation, with the. exception of that provided by conduction and radiation and at the same time to carry away the water evaporated.

American^ Society of Heating and Ventilating Engineers Guide, 1930 Trenches and Trench Covers 1.

American Society of Heating and Ventilating Engineers Guide, 1930 Penny (Pence).

American Society of Heating and Ventilating Engineers Guide, 1930 Crane Co.

American Society of Heating and Ventilating Engineers Guide, 1930 Decatur Pump Co., Decatur, 111.:....;--:............ ....... ................ ....

American Society of Heating and Ventilating Engineers Guide, 1931 Table 8.

American Society of Heating and Ventilating Engineers Guide, 1935 Chapter lb--Piping for Steam Heating Systems The returns from heating units on several floors are usually connected into common risers and the various risers tie into the return system.

American Society of Heating and Ventilating Engineers Guide, 1932 of Mines and the lower curves show the averages of the pounds of water evaporated per pound of coal under similar and normally good operating conditions.

/ American Society of Heating and Ventilating Engineers Guide, 1932 Table 1.

American Society of Heating and Ventilating Engineers Guide, 1932 known as saturated steam.

w American Society of Heating and Ventilating Engineers Guide, 1932 The openings in the roof of a greenhouse which serve for ventilation are arranged in a row along the ridge and are spaced uniformly.

c American Society of Heating and Ventilating Engineers Guide, 1934.

J American Society of Heating and Ventilating Engineers Guide, 1934 Down-Feed Gravity Two-Pipe System The steam main in the down-feed system is carried to the top of the building, and the piping of the steam side is arranged practically as,in the down-feed one-pipe gravity system.

r vyfil American.