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 certification | 250°C for one hour | Reversibility | 100% reversible | Air density | 1.38 kg/m3 |
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