fanblown

Fanblown is a term used to describe processes or equipment in which air or gas is moved by a fan, rather than by natural convection or other actuation methods. The spelling “fan-blown” is common, and the term appears across industrial, building, and laboratory contexts to distinguish powered air movement from passive air flow.

In HVAC and building ventilation, a fanblown system uses a fan to push or pull air through ducts to supply conditioned air or to exhaust stale air. In industrial drying and processing, a fanblown dryer or chamber circulates heated or ambient air through materials to remove moisture. In grain handling, seed processing, and similar operations, a fanblown approach uses a high-volume air stream to aid drying, cleaning, or separation. Fanblown configurations are also employed in fume hoods, clean rooms, and other enclosures where controlled air flow and contaminant removal are important.

Advantages of fanblown systems include more rapid and controllable air movement, the ability to achieve specific humidity and temperature targets, and improved consistency in processing or ventilation. Considerations include energy consumption, noise, maintenance requirements for fans and ducts, and the need for proper filtration and duct design to avoid pressure losses or contamination.

The term is typically used as an adjective to describe equipment or processes (for example, fan-blown drying). See also air flow, ventilation, forced-air systems, HVAC, and dust collection.