If you would like one I will send you a copy of my Rules of Thumb for designing large dry systems. You can contact me off line at [EMAIL PROTECTED] MLB
-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Reza Esmaeili Sent: Thursday, January 31, 2008 11:17 AM To: [email protected] Subject: Parking Garage Sprinkler System Hi All, I would like to ask about sprinkler system design in a car parking garage. The parking garage has two stories (Basement & Ground floor). It is only for car parking application which can hold about 350 cars. There is No mechanical devices to transport cars, and cars will drive to their own parking palaces. The area of each story is about 44,000 square feet, and ceiling high is about 10 feet. We are going to design a dry pipe sprinkler system for this car parking garage as piping are subjected to freezing during the cold weather. I looked up in NFPA codes for designing car parking garage, but I couldn't find that much helpfull information in NFPA-88A. In NFPA-13 I saw that automobile parking and showrooms are specified as Ordinary hazard occupancies (Group 1). I am going to design a tree dry pipe sprinkler system & some inside fire hoses in the garage. My questions are as followings: 1- What is your recommended Area of sprinkler operation and Density for my application after determining from the Density/Area curve? 2- I am going to use upright sprinklers, what kind of sprinkler is more common for such an application? standards coverage/extended coverage...? 3- What is the common distance between sprinklers and maximum area of coverage per sprinkler for a parking garage? 4- Is it necessary place a sprinkler exactly at above each car or not? 5- Is it necessary to place sprinklers in corridors & ramps where no cars are parked and only cars are moving? 6- What is the NFPA recommended duration for sprinkler system & inside hose stream? 7- Can I connect the inside hose to the dry sprinkler system piping? or shoud I connect the inside hose piping directly to the fire pumps? 8- I will place some insde fire hoses in the garage that provides 1 1/2 in. hose stations and according to NFPA-14 the minimum residual pressure at the outlet of most remote 1 1/2 in. hose stations should be 65 psi for hydraulically designed systems, so I think my fire pump head should be at least 80 psi? What do you think about this fire pump head, do you think it is low, high or good? 9- I want to protect both strories with a single riser using a 4" dry pipe system to feed my sprinkler system & fire hoses, what do you think about it? Thanks for your kind help in advance, Reza --------------------------------- Looking for last minute shopping deals? Find them fast with Yahoo! Search. _______________________________________________ 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)
