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On Thu, Jan 7, 2010 at 17:56, George Church <[email protected]> wrote: > Scot- > Given the trailer is parked inside a building with what I'll assume is > >.3/2000 wet system and maybe 20' deck height, would you believe that such > a > large fire could be produced with control mode sprinklers overhead? > > Todd- > And are the trailers being modified fiberglass bodied or steel/aluminum? > Consistent or subject to change? > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of å... .... > Sent: Thursday, January 07, 2010 8:33 AM > To: [email protected] > Subject: trailer parked inside > > Simulate almost-full semis/lorries were used as design fires > for the European Runehamar tunnel fire tests in Norway. > It was surprising that solid commodity (mix of > plastic and wood) could create a fire of 200 MW. > > 200 MW fire is equivalent to a constrained pool fire > (or pool fire with liquid deeper than 2 mm) of > gasoline that is more than 10 yards across with > intermittent flames to 35 ft in the air. > > There are caveats: > > Fire growth is initially slow inside trailers, > Fire ignition is rare inside trailers, > most semi (heavy goods vehicles) fires start in the > rear of rigs with a brake failure and overheating, or > up front in the engine compartment/driving cab. > Fires were burned on open steel racks to simulate the elevation of > the trailer, only there were no trailer enclosure > Fire load was not representative of worse-case loads > Ventilation, fans, open doors with wind --> will obviously > decrease fire duration and time to full-involvment while > increasing peak HRR. > > These have the potential to be big fires-- that fortunately don't > happen all *too* often, > accidentally, in vehicles parked in non-public occupancies. > > > scot deal > excelsior fire > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum > > For Technical Assistance, send an email to: [email protected] > > To Unsubscribe, send an email > to:[email protected]<to%[email protected]> > (Put the word unsubscribe in the subject field) > > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum > > For Technical Assistance, send an email to: [email protected] > > To Unsubscribe, send an email > to:[email protected]<to%[email protected]> > (Put the word unsubscribe in the subject field) > _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field)
