Atmos Power Pvt. Ltd is a leading Hoc Air Dryer (Heat of Compression Dryers) manufacturer and supplier in India.
A Heat of compression dryer is basically a regenerative desiccant based air dryer, which uses the heat generated during compression as its energy source for regenerating the saturated desiccant. It is a very reliable source of consistent large scale industrial dry air. The desiccant, is a highly porous material which adsorbs water molecules from the surrounding air. Some of the dry air is diverted to regenerate the media in the second tower
A HOC dryer is preferred because of its low electrical installation cost along with low power costs. The pressure drop of the system is very low, which also helps reduce its energy requirement. The dryer also uses recovered heat from the compressor to save on energy costs.
A heatless dryer works on the same principal as a standard desiccant based dryer, however no internal or external heaters are used. Instead of heating the air to dry the desiccant, more amount of air is purged into the tower. AtmosPower’s heatless dryers can achieve dew points of -40°F down to -100°F
Heat reactivated regenerative desiccant dryers may have internal heat applied by heaters. In the internal type, steam or electricity may be used in heaters embedded in the desiccant bed. This reduces the amount of purge air required for regeneration to less than 10%. The purge air plus normal radiation is used to cool the desiccant bed after regeneration to prevent elevated air temperatures going downstream.