Adsorption drying

There are two physical ways of reducing the relative humidity in a room:

• Keep the room temperature the same, but reduce the quantity of water vapour per kg of air
• Keep the quantity of water vapour per kg of air unchanged, but raise the temperature.

There are two main processes which can be considered when striving for optimum drying results in actual dehumidifying scenarios: condensation drying and adsorption drying.

Adsorption drying
At the heart of an adsorption dryer is an adsorption rotor. Moist air is fed through a wheel-shaped drying element (rotor).

This adsorption rotor, whose honeycomb structure presents an unusually large surface area, is coated with a special, highly hygroscopic (= moisture-absorbing) metal silicate, which draws moisture from the air as it passes through, regardless of the temperature.

Example: AERIAL ASE adsorption dryer