Heat exchange device

摘要

An evaporative heat exchanger comprises a working channel comprising primary and secondary surfaces and a plurality of product channels comprising primary and secondary surfaces. A liquid supply provides an evaporative liquid to t he secondary surfaces. A product fluid may circulate through the product channels in heat exchanging contact with the primary surfaces thereof. The primary surface of the working channel is in flow communication with the secondary surfaces of both the working channel and the product channels such that a working fluid may flow first o ver a primary surface of the working channel and subsequently over the secondary surfaces where it absorbs liquid by evaporation.