Radiation Free Lakeland has been sent the following information. The proposed underground nuclear dump would require miles of underground tunnels. The following videos show what happens in tunnel fires – everything is amplified. Add plutonium on rail tracks to the mix.. When asked about tunnel fires and nuclear waste dumping a NDA representative mumbled that “combustible materials would be kept to a minimum” – plutonium isn’t combustible?
as far as tunnel fires are concerned, you
only need to remember a few obvious things :-
A small amount of fuel in a surface fire equals a small fire with small problems.
A small amount of fuel in a tunnel fire equals a BIG fire with BIG problems.
It is easy to approach a surface fire from all directions.
In a tunnel, the smoke needs to be removed so that fire fighters can see the fire
and get close enough to extinguish it.
Above ground, the heat goes upwards.
Below ground, the heat will travel in BOTH directions, upstream AGAINST a wind flow
as well as downstream – with the wind flow.
See the 2nd video below.
Above ground, the fire will be fanned by the wind.
Below ground, vetillation is concentrated by ventilation shafts and tunnel walls.
Below ground, heat can be extremely intense.
Note the amount of smoke in this first video from a Norway test site.
In this video, they talk of extinguishing a tunnel fire using water.
Water in a repository tunnel would negate all the measures taken to ensure that the
repository itself is as free as possible from water – – according to the selection
process involved in finding suitable rock formations.
So when the inevitable fire happens in the next 100 years of the life of the first
repository, what will be used to extinguish the fire ?
Foam or some other substance, or will the air supply be cut off in some way ?
Also, ventilation will no doubt be used to get smoke away from one side of the fire
so that firefighters can see the fire and also get close to it.
Where will all the smoke and possibly contaminated dust be blown to ?
I wouldn’t want that to land on my vegetable patch, and I doubt very much that the
people living in the city of Manchester would welcome radioactive dust landing on
their Lakeland water supplies
Note in this next video how the smoke flows AGAINST the wind created by fans of 3
metres per second. – – -about 6 minutes into the video.
I would imagine that the smoke going against the flow will need stronger
vertilation to force it away from firefighters.
That will surely force even more debris into the atmosphere in order to clear the
way for the fire to be put out.
Also, note the heat release figures in this 2nd video, comparable to the heat
generated by a petrol tanker, but the fuel used for the test fire was only wood and
Finally – water is the key to fighting tunnel fires – but water is to be kept from the nuclear cargo in the tunnel en route to the dump
“Mitigation of Tunnel Fires” Keynote address – 2012 by Dr Ricky Carvel Edinburgh University