This is more an issue on the protection of Storage where the old
protection approach with just 1/2" and 17/32" was marginally at best.
We literally wetted the SURROUNDING combustibles and let the fire burn
itself out (while attempting to minimize the damage to steel over the
fire). Compared to today's performance with bigger K-factors, tis
would be a failure.
James and I did an article on this in the Feb 2010 issue of Sprinkler
Age.
Roland
On May 29, 2012, at 6:26 AM, <[email protected]> <[email protected]
> wrote:
Maybe I should have said "much" instead of "most", my point was
simply that evaporative cooling of the fire area is a physical
function of the extinguishment process. And your point is well made
that pre-wetting is a significant part of the control function.
Where in the world is Scot Deal these days?
Mark at Aero
----- Original Message -----
From: å... .... [mailto:[email protected]]
Sent: Tuesday, May 29, 2012 01:06 AM
To: [email protected]
<[email protected]>
Subject: Factory Mutual Data Sheet 2.0 - Sprinkler Orientation and
Spacing - sprinkler control mode
Pre-wetting is only a marginalized part of sprinkler control?
Less than half of a sprinkler's water hits the floor as liquid?
scot deal
excelsior fire
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