Adsorption describes the accumulation of substances (gases or liquids) on the surface of a solid which commonly is known as sorbent. In adsorption chiller systems, this process is designed for cold generation using water/zeolite or water/silica gel as the pairs of working material.
Fahrenheit adsorption chillers use two different types of adsorbents, silica gel, and zeolite. Silica gel, which is known for example as a desiccant for electronic devices, is completely non-toxic and ecologically harmless. Zeolite is an environmentally friendly crystalline mineral which presents an innovative alternative for adsorption, especially when utilized via Fahrenheit’s patented zeolite coating process to achieve higher capacities.
Since adsorption is a finite process, regeneration (desorption) is required to repeat the cycle. Desorption causes the adsorbed water vapor to be released via the supplied heat.