Figure 3 – The burning heptane pool when the foam has reached up to the edge of the locomotive’s apertures and started to flow in. At lower application rates, the foam did not manage to get into the locomotive, with the filling rate falling to zero when the foam had reached part-way up the locomotive.
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Foam firefighting systems in rail tunnels

Since 2007, SP Fire Research has been involved in the development of a foam firefighting system to protect rail tunnels carrying freight trains in Antwerp’s harbour district. SP’s role in the project, with a total budget of over EUR 870…