Protan Tunnel Ventilation Calculator
We provide you with a tool to make your working day more efficient.
Ventiflex Tunnelcalc is a easy tool, to determine the recommended duct-diameter, with additional information of approximately fan-size and working air pressure.
This calculator is based on SIA recommendations, and the latest European norms, for tunnel ventilation.
Basically, there are three key-figures necessary to operate this calculator:
(To be entered into the light green fields)
- The tunnel cross-section
- The tunnel length ( duct-length )
- SIA Class ( S-Class for TBM or A-Class for D&B )
Other figures will automatically appear, based on these three figures, and indicate recommended duct diameter.