![]() Once the hydraulic requirements are selected for the occupancy, the hydraulic calculation of the sprinkler system may begin. If all sprinklers on a sprinkler system operate the water supply most likely will not be adequate to control the fire. Therefore, only a portion of sprinklers on a sprinkler system are expected to operate during a typical fire, not all. of the sprinkler system layout and perform a calculation of all sprinklers within that 1500-sq.ft. This means the sprinkler system designer will choose the most hydraulically demanding 1500-sq.ft. Remote Area – the minimum area of floor space over which the density must discharge.Īs an example, Figure 11.2.3.1.1 indicates that an acceptable design for an Ordinary Hazard Group 1 occupancy is 0.15-gpm/sq.ft. This means that 0.1-gallons must discharge every minute for every square foot of floor space over a specified area. The English units for density is (gallons per minute per square foot (gpm/sq.ft.) For example, a Light Hazard occupancy could be designed for a density of 0.1-gpm/sq.ft. These curves stipulate the required minimum densities and remote areas that establish minimum water requirements for sprinkler systems.ĭensity - The amount of water that must be delivered every minute for every square foot of floor space.
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