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The performance of a AHU in an HVAC system plays an important role in saving energy and maintenance cost. CFD analysis helps to evaluate AHU design by visualizing flow patterns, pressure drops, recirculation etc. Resulting efficient design with lesser losses in terms of fan power and thermal gains through AHU walls.
An air handler, or air handling unit (often abbreviated to AHU), is a device used to regulate and circulate air as part of a heating, ventilating, and air-conditioning (HVAC) system. An air handler is usually a large metal box containing a blower, heating or cooling elements, filter racks or chambers, sound attenuators, and dampers.