Windtunnel

Vostermans Ventilation has an own wind tunnel at her disposal to measure the air movement of the fans at a specific pressure exactly. By determining the environmental circumstances during the measuring and by revising the air-tightness afterwards, the standardization of the data is warranted.

There are 2 possible ways of measurement: a complete fan or an impeller on a hydraulic installation. Two measuring tubes enable measurements of lower air currents (< 30.000 m³/h) as well as higher air currents (< 60.000 m³/h). The determination of the Q/h curve of the fan is one of the main objectives. To determine this curve (and to define other parameters) air technical, mechanical as well as electro technical data are measured:

Air technical:

Static pressure difference (Pa)
Amount of moved air (m³/h)
Average air speed (m/s)
Specific efficiency (W/1000m³/h)
Efficiency

Electro technical:

Tension (V)
Current (A)
Cos φ
Admitted power (W) fan / impeller
Rotations per minute (RPM)

The measurement can take place on the fan or in the application in which the fan is used. Vostermans Ventilation can create, depending on customers demands, for every application the optimal motor-impeller combination.
The wind tunnel of Vostermans Ventilation meets the international standards and is as accurate as the wind tunnels of the German DLG and the American AMCA and Bess Labs.

Windtunnel testing