Fires in tank farms may grow out of control without adequate fire-fighting equipment. The potential damage to the industrial plant, the environment and the financial loss may accumulate to excessive figures.
The tank farm fire at the Buncefield Oil Storage Depot in UK on December 11, 2005, is such a frightening example. It took 1.000 fire-fighters, 750.000 litres of foam concentrate and 55 Million litres of water to fully extinguish the fire. The overall quantifiable financial loss has been estimated to reach 1 Billion GBP.
The fire-fighting crews are exposed to excessive radiant heat, smoke pollution and the risk of explosion. Keeping them at distance from the fire (with the minimum distance dictated by the dykes around the tanks) and allowing them to apply high volumes of extinguishing liquid is of paramount importance and demands high performance fire-fighting vehicles.
Rosenbauer have recently delivered high performance industrial fire-fighting trucks to a customer in Kuwait and have successfully passed the at site performance test requiring a throw distance of 106 meters and reaching a height of 20m (which is corresponding to the height of their storage tanks).
The actual performance achieved at 7 bars hydrant feeding pressure has been a throw distance of 120 meters and the height of 20 m has been obtained at 100 meters distance, i. e. the full top area of the tank has been covered. The output volume of the Rosenbauer roof monitor RM 130 has been 13.400 lpm at a nozzle pressure of 13 bars.
The Rosenbauer balanced pressure foam proportioning system “Hydromatic 300” supplied the 3% FP foam admixing rate.
Attached photos nos. 1 and 2 show the throw performance of the Rosenbauer RM 130 during the at site test. Photo no. 3 shows an actual tank fire with a fire-fighting vehicle applying liquid to the tank wall which provides cooling only but is not considered to achieve a knock-down of the fire.
Attachment shows the throw range graph of the roof monitor Rosenbauer RM 130.