Air Exchange

Lab | Study

AUTHORS
Dr. Andrew Cashman

FACILITY
Cork Institute of Technology, Cork, Ireland

Objective

To assess the time taken for the NV950 (NV800/900) to treat the air of a 22.65m³(800 ft³) room

Methodology

A numerical simulation was undertaken on the NV950 (NV800/900) device, placed in a 9.3m² (100 ft²) room with standard 2.4 meter (8 ft)-high ceilings, with a total volume of 22.65m³ (800 ft³).

Transient models were developed to simulate the unit’s two speed settings and plot the percentage of treated air in the room over time. Once these simulations were completed, flow visualization tools were also employed to assess the aerodynamic behaviour of the fluid within the domain.

SUMMARY OF RESULTS

The Novaerus NV950 (NV800/900) unit operating at fan speed 1 was shown to take 24 minutes to clean 100% of the air in a room of 22.65m³(800 ft³) in volume.

Operating at fan speed 2 the device was shown to take 21 minutes to clean 100% of the air in a room of 22.65m³(800 ft³) in volume.

90% exchange of air was complete after 17 minutes at fan speed 1 and 15 minutes at fan speed 2.