mechanical smoke extraction for large fire loads in the gotthard base ...
mechanical smoke extraction for large fire loads in the gotthard base ...
mechanical smoke extraction for large fire loads in the gotthard base ...
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NUMERICAL SIMULATION<br />
Boundary conditions<br />
– Complex exhaust plenum<br />
system<br />
– High air temperatures<br />
– Variation <strong>in</strong> air/<strong>smoke</strong> density<br />
– Altitude difference<br />
– Variation <strong>in</strong> pressure drop<br />
– No regulation of <strong>the</strong> fans<br />
(constant caracteristic)<br />
Numerical simulation:<br />
– Aerodynamic model 1D <strong>in</strong> flow<br />
direction<br />
– Comb<strong>in</strong>ed <strong>the</strong>rmodynamic<br />
models <strong>for</strong> concrete and rock<br />
Mechanical <strong>smoke</strong> <strong>extraction</strong> <strong>for</strong> <strong>large</strong> <strong>fire</strong> <strong>loads</strong> <strong>in</strong> <strong>the</strong> Gotthard Base Tunnel<br />
23.-25.April 2012<br />
6
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