Desiccant Dehumidification

Technology

The desiccant rotor behaves like a water vapor filter, where air passing through the rotor gives off a big part of its moisture content to the desiccant that constitute the major content of the rotor matrix. Alternate flat and wave-shaped thin walls create narrow channels where the airstream can pass at a low pressure-drop and in close contact with the desiccant walls.

All desiccants have limited moisture capacity and need to be reactivated to get the capability to adsorb water vapor back. In a rotor-dehumidifier this is achieved by letting a small hot airstream pass through a small sector of the rotor, while the rotor slowly rotates between the sector where moisture is picked up and the sector with hot air where moisture is released from the desiccant. The two airstreams are kept apart by internal ducting and seals against the flat rotor surface. While the dry air is blown into the area to be kept dry, the exhaust of the reactivation-airstream is led to the outside. By this arrangement the rotor-dehumidifier can offer a continuous supply of dry air for a large number of applications.

There are several types of desiccants, all with the common ability to attract and trap the water molecules from the surrounding air, but otherwise different making them more or less suitable for a certain application. Proflute has a range of different rotors that enable excellent performance and durability for most aplications. Our long experience from, not only developing and manufacturing rotors, but also from thousands of installations in a large number of applications, will guarantee good performance and cost efficiency in installations using Proflute rotors.

 

Products from ProFlute for desiccant dehumidification

PPS, PPM, PPX, PPR