... carried on in two stages : ( 1 ) circulation of air-cooled water through the pipe system and (2) circulation of refrigerated water through the same system. To supply the air-cooled water for the first stage of the cooling, an atmospheric tower was... Dams and Control Works - Page 9by United States. Bureau of Reclamation - 1938Full view
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United States. Bureau of Reclamation - Colorado River - 1948
...on the crest of the down-stream cofferdam to supply air-cooled water for the first stage of cooling. Low humidity in the region, and the natural draft...of cooling very effective. Water falling over the 43-foot high tower was collected in a basin at the foot from which it flowed to a pumping plant. It...