Advances in Acoustics and Vibration / 2012 / Article / Tab 1

Research Article

The Conceptual Design of High Pressure Reversible Axial Tunnel Ventilation Fans

Table 1

Marmaray fan, transform, silencer, and damper package specification.

Pressure (Pa)3400
Pressure pulse (Pa)±500
Flow (m3/s)144
Power (kW)710
Minimum efficiency (%)70
dBA (tunnel side)85 ten metres from vent shaft
dBA (atmospheric side)85 ten metres from the vent shaft
EN 12101-3 certification250°C for one hour
Reversibility100% reversible
Air density1.38 kg/m3