Millikan, Robert Andrews, Gale, Henry Gordon · Boston : Ginn and Co. · leaf 234
he great majority of modern ice plantsthe low temperature required for the manufacture of the ice is producedby the rapid evaj^oration of liquid ammonia. At ordinary temperaturesammonia is a gas, but it may be liquefied by pressure alone. At 80° F.a pressure of 155 pounds \^er square inch, or about… … Fig. 192. Compression system of ice manufacture forces the gaseous ammonia under a pressure of 155 pounds into the con-denser coils shown on the right, and there liquefies it. The heat of con-densation of the ammonia is carried off by the running water whichconstantly circulates about the condenser…
Physics
Internet Archive · UBC Library · Public Domain Mark 1.0. Free to use for anything.
