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From: (no name) (no email)
Date: Sat Dec 06 2003 - 21:38:10 EST
In a message dated 12/3/2003 11:01:54 AM Eastern Standard Time,
writes:
>
> Norm, if you remove the smoke [dirty air], aren't you likely
> to replace it with oxygen-laden clean air, which would feed
> the fire? I've always thought it would be better to fill the
> engine room with Halon or carbon dioxide. Am I missing
> something?
>
>
That is the conventional wisdom.
However, a lot depends on what I am dealing with. With an electrical fire I
must first stop the current flow or the fire will not stop. With a fuel fire
I must cool the source of ignition. If I can see the fire I can tell better
what to do.
Yes, fresh air will bring oxygen to the fire, but the fire already has
sufficient air or it would not be a fire. I want the option to be able to rapidly
clear the black smoke out of the engine room to be able to see what is going
on.
One time I lost a v-belt driving the water circulating pump and steam filled
the engine room. I was thankful that it was not fire smoke, but I couldn't
see a thing in there until I rigged a box fan in the ER hatch to clear the air.
Norm
S/V Bandersnatch
Lying St Augustine
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