Cross passage ventilation
Cross passage ventilation
Cross passage ventilation
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Fresh air impulse <strong>ventilation</strong><br />
Percentile value<br />
95- Percentile<br />
ZAMG<br />
Design<br />
(Planer)<br />
Processing of the Pressure<br />
differences at the portals<br />
NP – SP SP – NP Shaft-Draught<br />
Up<br />
Processing of the Shaft Natural<br />
Draught<br />
Shaft-Draught<br />
Down<br />
Pa Pa Pa Pa<br />
236 182 553 133<br />
165 165 1000 300<br />
236 – 165 = 71 Pa x 48 (Traffic Area) = 3400 N Thrust (120 kW Jet fan Power)<br />
6 th Conference “Tunnel Safety and Ventilation” Graz 22-24 April 2012 5
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