it was before my time in the Northwest but I heard that a strategy for protecting the Tacoma Dome (geodesic) (largest single span wood structure in the world) was a water cannon at the apex. I do not know why this never happened. The current protection is some lower level sprinklers in annexes and under mezzanine areas but nothing in the stadium.
On Wed, May 14, 2008 at 1:25 PM, <[EMAIL PROTECTED]> wrote: > 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 > > > > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum > > To Unsubscribe, send an email > to:[EMAIL PROTECTED] > (Put the word unsubscribe in the subject field) > > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum > > To Unsubscribe, send an email > to:[EMAIL PROTECTED] > (Put the word unsubscribe in the subject field) > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum > > To Unsubscribe, send an email > to:[EMAIL PROTECTED] > (Put the word unsubscribe in the subject field) > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum > > To Unsubscribe, send an email to:[EMAIL PROTECTED] > (Put the word unsubscribe in the subject field) > -- Ron Greenman at home.... _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum To Unsubscribe, send an email to:[EMAIL PROTECTED] (Put the word unsubscribe in the subject field)
