Engineering Strategies for Airborne Diseases

H V A C S Y S T E M S T R A T E G I E S

CONTROL OF AIR DIRECTION - UNDERFLOOR DISTRIBUTION

Displacement ventilation or underfloor installations are more efficient for pollutant control.

Fresh air enters the space from floor level and takes advantage of natural thermal buoyancy which sees warmer air rise towards the ceiling. Along the way, the air currents will force pollutants up and away from occupants, resulting in a much higher air quality.

In spaces with T-bar ceilings additional return grilles will reduce return air movement within the occupied space.

With this system the workstations can be reconfigured to create a layout similar to “hot aisle-cold aisle” configuration. Common supply air will be provided to the rows back to back and the return air will rise up from the middle rows. Diffusers placed in return rows will be shut closed.