Multi-stage indirect evaporative cooling system

摘要

The invention relates to a process and an apparatus according to which and in which, for the cooling of air, the air stream is conducted through a first heat exchanger (33), in heat exchange with a second air stream, and then through a first circulating water cooler (18), the water of which is cooled by means of an evaporative cooling system (21) by the second air stream (26,28,29), after which the first air stream is conducted through a second indirect heat exchanger (44) and then into a further direct heat exchanger (47). IMAGE