US 10,371,466 B2 · Method of preserving heat exchange surface and method of cooling moist air

Abstract

A method of cooling moist air through a heat exchange surface suppresses the formation of dew and frost on a heat exchange surface by preparing a carrier which has a heat conduction ratio higher than that of the moist air if the air temperature in a temperature boundary layer, is below the dew-point when the air temperature in the temperature boundary layer is above 0° C., or below the freezing-point when the air temperature in the temperature boundary layer is below 0° C., the carrier being arranged within the temperature boundary layer and on the heat exchange surface, which is in contact with moist air and is used for cooling; and removing moisture from the air by condensing or sublimating water vapor in the moist air on the surface of the carrier by arranging the carrier opposite of the heat exchange surface and within the temperature boundary layer.

Claims22

Dependent claims

A method of maintaining a heat exchange surface which is in contact with moist air and is used for cooling, by suppressing the formation of dew and frost on the heat exchange surface, comprising:

arranging a carrier facing a heat exchange surface, within a temperature boundary layer which is determined in accordance with temperature and flow of moist air on the heat exchange surface, the carrier having a heat conduction ratio higher than that of the moist air in cases where the air temperature in the temperature boundary layer is either (i) below the dew-point and above 0° C., or (ii) below 0° C., and
flowing the moist air along the heat exchange surface and the carrier, thereby removing moisture by condensing or sublimating water vapor in the moist air on a surface of the carrier, and
replacing the carrier when dehumidifying performance of the carrier is deteriorated.

A method of cooling moist air through a heat exchange surface which is in contact with the moist air and is used for cooling, by suppressing the formation of dew and frost constituting a thermal resistant layer on a heat exchange surface, comprising:

arranging a carrier facing a heat exchange surface, within a temperature boundary layer which is determined in accordance with temperature and flow of moist air on the heat exchange surface, the carrier having a heat conduction ratio higher than that of the moist air in cases where the air temperature in the temperature boundary layer is either (i) below the dew-point and above 0° C., or (ii) below 0° C., and
flowing the moist air along the heat exchange surface and the carrier, thereby removing moisture by condensing or sublimating water vapor in the moist air on a surface of the carrier.

Dependencies are inferred from the claim text.

Method of preserving heat exchange surface and method of cooling moist air

Life of this patent

Method of preserving heat exchange surface and method of cooling moist air

Life of this patent

Abstract

Claims22