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Liquid Desiccant overview


    Liquid Desiccant Air Conditioning Systems (LDAC) is based on the principle of natural mass balancing. LDAC uses vapor pressure in wet air and adsorption and desorption characteristics of salt solution to adjust moisture content (humidity) of treated air. Water transmission is driven by differential pressure between the salt solution and the air. When the surface vapor pressure of the solution is below the water vapor pressure of the air, the solution absorbs water from air and achieves dehumidification. Conversely, when water in the solution transfers into the air, the solution becomes concentrated and is regenerated.

    Regeneration Process

    Water will be driven out of the solution when the water vapor pressure of the solution is greater than the air vapor pressure. This increases, or regenerates, the solution concentration.