Surface flow models, secondary flow

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Surface flow models, secondary flow

 

Surface flow models distribute the air through the surface of the duct either through permeable fabrics or microperforations covering a minimum of 25% of the surface.

These flow models are often used as secondary flow in combination with a directional flow model.

Microperforations may cover between 25% to 100% of the duct’s surface area.

Surface flow technology is often used to prevent dust and other particles from accumulating inside or on the duct’s surface, making it virtually maintenance-free.

Surface technology also prevents condensation from forming in or around the duct’s near zone.

 

FabFlow™

In FabFlow™ the air exits the duct through the permeable fabric surface. The air is driven by thermodynamic forces preventing drafts in the occupied zone, which results in a high level of comfort.

MicroFlow™

With MicroFlow™, the air exits the duct via laser-cut micro-perforations on a larger percentage of the duct’s surface area. When used as the primary flow model, the perforated area covers between 25% to 100% of the duct’s surface area.

PerfoFlow™

With PerfoFlow™ the air exits the duct via laser cut perforations along the circumference of the duct. The perforations can cover between 90° and 360° of the duct’s circumference. 

Combining flow models

By combining surface flow models with directional flow models you can achieve the ideal airflow regardless of the project complexity.

Low velocity

FabricAir ducts are designed to have low internal velocities and if needed can also have low velocities in the occupied zone.