Air Handling Units

Energy Efficiency and Air Handling Units

The air handling unit (AHU) is a complicated device involving many interrelated design selections that affect its energy efficiency. The overall efficiency of an AHU is determined by the energy it takes to move a given quantity of air against the system. Three major energy choices for the AHU design must be considered: [Hunt et al., 1990]

·Reducing AHU pressure drop,

·Incorporating the most efficient fan "system," and

·Displacing conventional cooling and heating energy. [Hunt et al., 1990]

More:

Reducing AHU pressure drop

Incorporating the most efficient fan "system"

Displacing conventional cooling and heating energy

Fans

Coils

Evaporative cooling

Economizers


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