A compressed air dryer is a piece of equipment des...

A compressed air dryer is a piece of equipment designed to separate water vapor or moisture (de-humidify) from industrial process air. In the typical system, a compressor draws in humid air and compresses it, which raises the air temperature and then cooling the air condensing water vapor out of the unit. This type of dryer uses the heat generated during the compression process to heat the desiccant beads and to remove the moisture. Most of the times hot compressed air from the compressor is send through the saturated vessel, the moisture is re- leased and transported with the compressed air to a cooler. To avoid water condensation in a pneumatic system, an air dryer can be installed in the system . The basic function of the air dryer is to remove moisture from the air by cooling it with a refrigerant. Thus, the water vapor is condensed, and the air can be compressed. Air dryers remove moisture from the air. Each dryer system- desiccant dryer, refrigerated dryer, and membrane dryer, uses its own technique. The measurement of dry compressed air after processing is known as its 'dew point'. The lower the temperature of the dew point, the less amount of water vapor in the air. Dew point means the actual temperature where condensation begins. For example, if the dew point is -40 C° this means condensation starts only if compressed air temperature goes down to -40 C°.