Advances in Acoustics and Vibration / 2012 / Article / Tab 3

Research Article

The Conceptual Design of High Pressure Reversible Axial Tunnel Ventilation Fans

Table 3

Prototype and full size double ended motor tunnel ventilation fan specification.

Prototype fanFull size fan

Diameter (metres)1.82.8
Hub ratio0.440.40
Tip solidity0.50.5
Blade number1620
Running speed (RPM)990890
Blade passing frequency (Hz)264297