What is desiccant dehumidification?
Desiccant dehumidification includes a heating device (regenerator) in the exhaust air stream to raise air temperature to 140 degrees F or greater. The hot air causes most of the moisture to be released from the wheel. The result is a capability to dry outdoor air to very low humidity levels (as low as 10 grains of moisture/lb of air). Desiccant dehumidification equipment is expensive and consumes a lot of energy with the regeneration process. It is really designed for processes requiring very dry air. Comfort ventilation applications are really a misapplication of this product.
