So it seems like the typical application is large open areas with
relatively low hazards. 

Storage areas would seem to create a bunch of problems. 


Craig L. Prahl, CET   
Fire Protection Group
Mechanical Department
CH2MHILL
Lockwood Greene
1500 International Drive
PO Box 491, Spartanburg, SC  29304-0491
Direct - 864.599.4102
Fax - 864.599.8439
[EMAIL PROTECTED]
http://www.ch2m.com 

-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Tim
Frankenberg
Sent: Wednesday, May 14, 2008 4:21 PM
To: [email protected]
Subject: RE: Automated Water Cannons for Use in Storage
ApplicationsandLargeOpen Areas

Chris,

That technology is already out there. There are systems in Asia that use
triangulation of flame detectors to aim a water cannon in the location
of the fire. I have seen an installed system in large train station in
Japan.

Kind Regards,
Tim Frankenberg

Tim Frankenberg, CFPS
Fire Product Manager
Potter Electric Signal Company LLC
2081 Craig Road
St. Louis, MO 63146
www.pottersignal.com

-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Chris
Cahill
Sent: Wednesday, May 14, 2008 2:47 PM
To: [email protected]
Subject: RE: Automated Water Cannons for Use in Storage Applications
andLargeOpen Areas

Stream of thoughts:

Is in a storage application does the storage itself create areas where
the water can't reach because it hits things that are not on fire.  Just
like FF can't use monitor nozzles at the doors most times.  

In a large venue many times the throw is to get over seats for example.
The
target area, sports floor, is relatively small compared to the space
around.
Also, typical fire hazards in an arena are low in height compared to
storage up to the joists.  You can sometimes lob the water over because
you have clear space over what's not burning. But not in a typical
storage occupancy.
Ever heard whining about the 3' with sprinklers.   

Certainly it's viable depending on what the performance objectives are.
Accept you will lose the building and some protection that fails is
better.
Just kidding.  

Either way sprinklers or cannons you are just as screwed in a failure of
any kind. No testing to support it will control the fire.  

Another concern is the blast from the cannon breaking up whatever is
burning into several chunks of burning stuff.  Think aerosols rocketing
about.
I've
pushed down walls with master streams.  Granted they were weakened from
fire
to start.     

I'd certainly love to see the fire testing this was put through, the
China version.  Easily I can see combining CCTV fire detection and
current robotics and current auto-oscillating nozzles used in hangers.
But together does it actually put out the fire.  

Like all good ideas and this may very well be the only things slowing it
down is money.           

Chris Cahill, P.E.
Fire Protection Engineer
Sentry Fire Protection, Inc.
 
763-658-4483
763-658-4921 fax
 
Email: [EMAIL PROTECTED]
 
Mail: P.O. Box 69
        Waverly, MN 55390
 
Location: 4439 Hwy 12 SW
              Waverly, MN 55390
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Steve
Kowkabany
Sent: Wednesday, May 14, 2008 1:14 PM
To: [email protected]
Subject: Automated Water Cannons for Use in Storage Applications and
LargeOpen Areas

Has anyone ever heard of automated water cannons being used for fire
protection in the US?  This technology is being employed in China and
was mentioned in a recent article in NFPA magazine about the new Beijing
Olympic stadium and swimming venue.  It sounds like basically a remote
controlled monitor that can throw water up to 200 feet which is actuated
and controlled using a vision system that can detect fires.  They
apparently use them frequently in large open-space applications.  This
sounds like an excellent application for the dry storage of boats
possibly and other storage configurations.  Imagine having three or for
of these monitors in a warehouse or marine with some cameras to cover
everything.  Then upon detecting a fire, it could feed live video to the
monitoring station and even turn itself off automatically after visually
confirming the fire was out.

 

Just kicking around an idea.  Any thoughts?

 

 

Steve Kowkabany, P.E.

Fire Protection Engineer

Neptune Fire Protection Engineering LLC

616 Davis Street

Neptune Beach, FL 32266

904-652-4200 Phone

904-212-0868 Fax 

 

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