Abstract: An air cooled condenser installation comprising a first group of heat exchange elements including a plurality of rows of upright tubes impinged by a stream of cooling air and connected at upper and lower open ends by an upper manifold respectively, a lower collecting chamber to each other, and a steam conduit communcating with the upper manifold so that the steam flows in downward direction through the tubes and partly condenses therein with the condensate flowing in the same direction, and a second group of heat exchange elements including a second plurality of upright tubes impinged by a second stream of cooling air and connected at upper and lower open ends respectively by an upper chamber and a lower chamber, and a conduit connecting said lower collecting chamber of said first group of heat exchange elements with the lower chamber of the second group of heat exchange elements so that steam which has not been condensed in the first group of heat exchange elements will flow in upward direction through the s

Abstract: Liquid used in a liquid-heating machine such as a turbine condenser is continuously circulated in an endless fluid flow path which passes through the machine and which is subdivided at a location spaced from the machine into a pair of parallel branches. A closed dry-type heat exchanger is provided in one branch and a wet-type evaporative cooler is provided in the other branch. A fan or the like is operated to form a pair of parallel streams of air one of which is passed over the closed heat exchanger for cooling the liquid purely by conduction, and the other stream is passed directly over the liquid in the evaporative cooler so as to cool it largely evaporatively. The heated air coming off the dry-type heat exchanger is mixed with the heated humid air coming off the wet-type evaporative cooler and liberated to the atmosphere.

Abstract: A cooling tower has circumferentially distributed inlet openings at the lower end for the entrance of cooling air and a central upper outlet opening. Cooling air flows through the tower, on the one hand, counter-currently to a medium to be cooled which flows in downward direction over a trickling unit (wet cooling section), and on the other hand, parallel thereto about heat-exchanger elements, flown through by a medium to be cooled (dry cooling section). The trickling unit and the heat-exchanger elements are separated from each other.