Far. And yes the fire flow accommodates the demand for both. I'm trying to figure how much storage is needed.
On Thu, Sep 3, 2009 at 1:30 PM, David de Vries<[email protected]> wrote: > I don't have a quick answer, but out of curiosity, how far does the FD need > to go to get another water source? > > BTW, the hose allowance in the sprinkler design must surely be part of the > fireflow. > > Dave > > David A. de Vries, P.E., CSP > Firetech Engineering Incorporated > > > > > --- On Thu, 9/3/09, Ron Greenman <[email protected]> wrote: > > > From: Ron Greenman <[email protected]> > Subject: Fire Flow > To: [email protected] > Date: Thursday, September 3, 2009, 2:39 PM > > > When determining tank size on a property supplied only from a tank is > the sprinkler demand added to fire flow as a cumulative fire flow or > is it considered part of the fire flow? And if the former does the > hose stream need to be added or is it negated by the fact that the > tank is already supplying the hydrants? Example: 30,000 sqft fully > sprinklered building requires a fire flow (reduced 75% then rounded up > to the minimum) of 1500 gpm for 2 hours requiring a 180,000 gallon > tank. The sprinkler demand is 650 gpm plus a 250 gpm hose stream for > one hour for a total of 54,000 gallons. Is the 54K gallons included in > whole or in part with the fire flow storage or is it added? Thanks. > > -- > Ron Greenman > Instructor > Fire Protection Engineering > Bates Technical College > Tacoma, WA > > Member: > SFPE, ASCET, NFPA, AFSA, NFSA AFAA > _______________________________________________ > 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) > _______________________________________________ > 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) > -- Ron Greenman Instructor Fire Protection Engineering Bates Technical College Tacoma, WA Member: SFPE, ASCET, NFPA, AFSA, NFSA AFAA _______________________________________________ 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)
