Patent ID: 7428823
Filing Date: 2008-09-30
Classification: F24F,F28D,Y02B

Abstract:
1. A dew-point cooler, comprising: a first medium circuit and a second medium circuit, thermally coupled to the first medium circuit by a partition that is at least partially heat conducting, the circuits being able to carry respective first and second media, at least the second medium containing air with a relative humidity of less than 100%; the partition having heat conducting surfaces which in at least the range of the secondary medium are at least partially coated with a hydrophilic coating, said coating being able to absorb and retain water and release the water by evaporation, such that the wetted coating and therefore also the heat conducting surfaces are cooled; primary driving apparatus for the primary medium; a humidification unit for humidifying the secondary medium by evaporation of water from the coating, such that the evaporated water which is carried away by the secondary medium extracts heat from the primary medium via the heat conducting partition; wherein a water system, comprising the humidification unit and the coating, contains an amount of inorganic anti-microbial catalyst and at least one ultraviolet source is provided for irradiating the inorganic anti-microbial catalyst.