The below description and illustration represents the simple principle, to which there are certain variations – types with one air fan only, types with heat recovery from the rotor, types with air cooled condenser. Small models regenerate electrically, whereas you may choose steam or gas too, for the larger models.

The adsorption dehumidifier consists of the following main components:
Adsorption rotor, drive motor, heating elements, air fans, air filters and electric components. Everything has been built in a cabinet and is supplied as a unit ready for operation. The only things to be connected on site are power supply and necessary air ducts.

The adsorption rotor with its large surface of silica gel is capable of absorbing humidity from the air passing through it. The process air is lead through the process air filter and then trough the drying section of the rotor, where the air will be dried and will leave the dehumidifier as dry air. The water from the process air has now been absorbed in the rotor.

The rotor slowly turns and the water absorbed in the rotor will be removed by means of the regeneration air which is carried through the regeneration air filter, and after the heatup through the regeneration section of the rotor and out of the dehumidifier as wet air.

The two airflows passes trough the slow turning rotor simultaneously. In this way a continuous and automatic process is obtained. The rotor is constructed for the varying water adsorption/regeneration and will be able to withstand this interaction for many years without loosing its capacity. The rotor is made of silica gel on a supportive material of fibre glass.

Naturally you are welcome to contact HBC for more specific data.