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SUMMARY

SINTEF Energy - Norwegian Fire Research Laboratory (NBL) has the task to carry out a series of fire tests with confined jet and pool fires, according to the test programme F3 of Blast and Fire Engineering for Topside Structures. This report is for jet fire test JF15.

Jet fire test JF15 represents a vertical release of condensate (a liquid fraction from an oil refinery) at low level in a 415 m³ enclosure with a split opening at one end. The general fire behaviour such as flame geometry and characteristics, temperature field and heat load from naturally ventilated fires was studied. The main purpose of test JF15 was to investigate the variation in fire behaviour by changing the ventilation opening into a split area, but keeping the same total ventilation area as in test JF12. The fuel flow rate was kept at a constant level during the test.

The fuel release rate was 0.95 kg/s with a release pressure of 12.1 bar and the ventilation opening is 5.5 x 1.56 m in the upper part of the east end wall and 5.5 x 1.37 m in the lower part of the east end wall, with a 5.5 x 3.0 m wall element in between. The fire was well-ventilated, with an average equivalence ratio of 1.59±0.41.

This technical report includes description of the test rig, the experimental details and a set of curves from the measured parameters.