Data Processing System Air Cooling With Membrane Drying Chamber
Original Publication Date: 1985-Aug-01
Included in the Prior Art Database: 2005-Feb-19
Components of a data processing system are commonly cooled by recirculating air between the components and a refrigeration unit. In the air warmed by the components, a substantial part of the heat is carried as the heat of vaporization of moisture that is normally present in the air. This energy is conventionally removed by condensation in the refrigeration unit. After the air has passed through the refrigeration unit, it is heated slightly to reduce the relative humidity. The warm, most air from the components is pre-dried by passing over a membrane that is much more permeable to water vapor than it is to oxygen or nitrogen. A fan maintains a pressure difference across the membrane and thereby causes water vapor to diffuse out of the cooling air stream without being condensed or cooled.