Understanding Desiccant Dehumidification

Our equipment employs a desiccant material, known for its vapor-state water adsorption properties, to remove moisture from the air. This desiccant, comprised of silica gel, is integrated into paper sheets.

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These impregnated sheets are then wound into a wheel, called the rotor. This rotor is strategically divided into two distinct air streams; the process and react streams. It undergoes a deliberate, slow rotation, typically within the range of 3 to 30 revolutions per hour (RPH).

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When the processed air, sourced either from the external environment or as a return from a conditioned space, is directed through the rotor, the moisture present in the air is absorbed by the desiccant-infused rotor material. The now dehumidified air is channeled to the designated space via a process fan.

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However, the water content extracted from the processed air, which remains bound to the rotor, necessitates desorption to sustain the continuous moisture removal process. This task is accomplished by reactivation air, typically sourced from the external environment, heated to a range of 200°F - 310°F.

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This heated air stream is directed over the rotor, liberating the previously bound water molecules. It is imperative to note that this reactivation air stream is extremely humid and is subsequently directed outside the system for efficient moisture disposal.