shape of the design area in the case of storage
shape of the design area in the case of storage
(OP)
I have a simple question. For example if I'm in the case of designing automatic sprinkler for storage and work with the table 12.2.2.2.1(a)NFPA13(ed 2002) how can I detemine the shape of the design area and number of prinklers in each branch lines?
My suggestion is to apply 14.4.4.1.1 NFPA13(ed 2002) and calculat the number of sprinkler in branch lines by this formula:
1.2*sqrt(design area)/(distance between sprinklers in the same branch)
am I right?
My suggestion is to apply 14.4.4.1.1 NFPA13(ed 2002) and calculat the number of sprinkler in branch lines by this formula:
1.2*sqrt(design area)/(distance between sprinklers in the same branch)
am I right?





RE: shape of the design area in the case of storage
RE: shape of the design area in the case of storage
RE: shape of the design area in the case of storage
RE: shape of the design area in the case of storage
Travis Mack
MFP Design, LLC
www.mfpdesign.com
RE: shape of the design area in the case of storage
Figure A.22.4.4 should point you in the right direction.
Like Travis says, though, you might have to calculate 'extra' heads if heads are spaced non-uniform.
Superior Fire Protection Systems
Protectiong Lives and Property since 1986.
Vancouver, British Columbia
http://www.superiorfireprotection.ca
RE: shape of the design area in the case of storage
I look in the NFPA 13 and didn't find the design area for tha case.
RE: shape of the design area in the case of storage
Assuming your system is a grid, you will calculate 4 sprinklers on each of 3 branch lines, for a total of 12 sprinklers. The shape will thus be a rectangle.
Superior Fire Protection Systems
Protectiong Lives and Property since 1986.
Vancouver, British Columbia
http://www.superiorfireprotection.ca
RE: shape of the design area in the case of storage
Superior Fire Protection Systems
Protectiong Lives and Property since 1986.
Vancouver, British Columbia
http://www.superiorfireprotection.ca
RE: shape of the design area in the case of storage
RE: shape of the design area in the case of storage
Superior Fire Protection Systems
Protectiong Lives and Property since 1986.
Vancouver, British Columbia
http://www.superiorfireprotection.ca
RE: shape of the design area in the case of storage