I am calculating a series of Deluge Systems for exposure protection on an airport concourse and I have an HONEST question for you engineers out there.
How important is 5 psi truthfully when you are calculating 43 open 11.2 k nozzles with a total demand of 1,500 gpm @ approximately 100 psi? Due to the orientation (there is an "L" shape where the concourse meets the main bldg), we have to calculate 350-400' of exposure instead of 300' and we are running into a brick wall after balancing the individual non-symmetrical systems (5 of them) when we get within about 5 psi. We have already replaced the pump with the maximum we can go with the existing concrete encased conduit. The EOR and AHJ are of course relying on us to make this work, etc, etc. Thoughts? Greg McGahan Living Water Fire Protection (850) 937.1850 | Fax (850) 937.1852 | Cell (850) 554.3231 -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Rod DiBona Sent: Thursday, March 11, 2010 12:00 PM To: [email protected] Subject: RE: DRY SYSTEMS FOR DUMMIES Exactly but the problem with proving them empirically is that is after the design and installation. If you "guessed" wrong it will cost ya! Rod DiBona -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Ron Greenman Sent: Thursday, March 11, 2010 10:21 AM To: [email protected] Subject: Re: DRY SYSTEMS FOR DUMMIES So you buy Tyco's program or you empirically prove delivery times. On Thu, Mar 11, 2010 at 9:05 AM, Thom McMahon <[email protected]> wrote: > If I'm not mistaken there is only one program available and TYCO owns it and > the formula's that are used by it. > Rumor has it that the hired a Noble winning math. Dude locked him up for > several years until he produced the program they will now rent/sell you. > > No this is not public domain information. > > Thom McMahon, SET > Firetech, Inc. > 2560 Copper Ridge Dr > P.O. Box 882136 > Steamboat Springs, CO 80488 > Tel: 970-879-7952 > Fax: 970-879-7926 > > > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of Vince Sabolik > Sent: Thursday, March 11, 2010 9:14 AM > To: [email protected] > Subject: DRY SYSTEMS FOR DUMMIES > > Regarding water delivery time in dry systems..... > 11.2.3.9.2 The calculation program and method shall be listed by a > nationally recognized laboratory. > > Anybody know where the formula for the(se) program(s) exists? > > > > Vince Sabolik > Christi Fire Protection, Inc. > 11351 Pearl Road > Strongsville, Ohio 44136 > > T 440 572-7730 F 440 572-7719 Email: > <mailto:[email protected]>[email protected] > > _______________________________________________ > 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, NIBS, WSAFM, WFC _______________________________________________ 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) _______________________________________________ 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)
