Uncontrolled fire in tunnels normally cost millions of dollars to extinguish and cost as much in damages. An example is the Mont Blanc tunnel fire.
I don’t know if the idea is feasible, but I would like to float it.
We have learned that fires needs two elements to propagate and stay alive: Heat and oxygen.
So why not eliminate one of these elements?
Bring liquid nitrogen capsules and surround the fire at both end in the tunnel, as close to the fire as firemen could and then use those big fans we see being used in making movies to direct the flow of open liquid nitrogen from the open canisters towards the fire.
Anyone think this idea is feasible?
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