AUTOMATIC FIRE SPRINKLER  SYSTEM CALCULATIONS

Step 1 - Occupancy Classification:

The first step in hydraulic calculation is to classify the hazard type (commodity being protected). (Ref: Chapter 5 - Classification of Occupancies and Commodities, NFPA-13)

Step 2 - Density/ Area Curve for water requirements:

After choosing the hazard occupation, we refer to Fig 11.2.3.1.1 (NFPA-13)-2007 Density / Areas Curve to establish water requirements.

Step 3- Formula used in hydraulic calculation process:

Step 4- Pipe Inside diameter chart

Step 5 - Remote area selection & number of sprinklers

Step 6- Calculating number of sprinklers in Remote Area:

Step 7- Calculating discharge at end sprinkler:

Calculation from sprinkler 01 to 02 in remote area

Calculation from sprinkler 02 to 03 in remote area

Using calculation process as above we get the following: