Complementary Technologies


Technologies providing a natural fit with indirect evaporative technology are desiccant drying and displacement ventilation.


Desiccant Technology

Desiccant cooling systems are based upon the combination of the indirect evaporative heat exchanger and a desiccant rotor (drying technology) maximizing evaporative cooling performance and expanding its application into regions with extreme humid climate conditions.


Displacement Ventilation

Contrary to mixing ventilation the principle of displacement ventilation is based upon little to no air mixing such that any contaminants as well as excess heat in the air are naturally carried up and collected near the ceiling, away from the building occupants.



Indirect evaporative cooling principle   Evaporative media


The typical cooling capacity of displacement ventilation systems equipped with indirect evaporative cooling technology is 40 W/m2 (13 BTU/(h∙ft2), see the article on Displacement Ventilation in our download center (under ‘miscellaneous data’) with indoor temperatures that fall within the ASHRAE 55 thermal comfort zone, a supply air temperature of 18 °C (64 °F) and a ventilation frequency of 4 times per hour. Displacement ventilation is increasingly used in LEED certified buildings. OXYCELL® based displacement ventilation systems offer maximum energy efficiency, indoor air quality and comfort in indoor climate control.


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