A fire system is a vigorous fire protection methodology, consisting of a water system, providing adequate pressure and rate of flow to a water distribution piping system, onto that fire sprinklers square measure connected.
Automatic sprinkler systems square measure thought-about to be only and economical thanks to apply water to suppress a fireplace. Four basic kinds of sprinkler systems square measure given below
Sprinkler deluge systems square measure employed in several common applications like storage areas, sales rooms, searching centers, hospitals, school, etc.
OISD 117 - hearth Protection Facilities for crude oil Depots, Terminals, Pipeline Installations and make full oil installations
Fire water rate of flow for a country shall be combination of the following:
Water flow calculated for cooling a tank afire at a rate of three lpm/m2 of shell space.
• Water flow calculated for exposure protection for all different tanks falling at intervals a radius of (R+30) m from centre of a tank afire (R-Radius of tank on fire) and set within the same dyke at a rate of three lpm/m2 of shell space.
• Water flow calculated for exposure protection for all different tanks falling outside a radius of (R+30) m from centre of a tank afire and set within the same dyke at a rate of one lpm/m2 of shell space.
• For water flow calculations, all tank farms having category A or B crude oil storage shall be thought-about regardless of diameter of tanks and whether or not fastened water spray system is provided or not.
NFPA 13 - - customary for the Installation of mechanical device Systems
The designation of sprinkler system sizes are often known by nominal K-Factor. The K-factor formula is employed to calculate the discharge rate from a nozzle.
Nominal K-factor shall be larger than twenty [L/min/ (bar) 1/2]
NFPA 15 - Standard for Water Spray Fixed Systems for Fire Protection
Minimum in operation pressure of any nozzle protective out of doors hazards shall be one.4 bar.
OISD 244 - Storage and handling of crude oil merchandise at depots and terminals as well as standalone petroleum storage facilities.
Spray nozzles shall be directed radially to a tank at a distance not olympian zero.6 m from the tank surface.
