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SUMMARY

SINTEF Energy - Norwegian Fire Research Laboratory 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 JF1B.

Jet fire test JF1B is representing a vertical release of condensate (a liquid fraction from an oil refinery) at low level in a 135 m³ enclosure. 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 JF1B was to reproduce a test from an earlier experimental series, with condensate (a liquid fraction from an oil refinery) as fuel instead of propane. The purpose was also to establish a basis for scaling from 135 m³ to 415 m³ enclosure size.

The general fire behaviour depending on enclosure geometry, ventilation arrangement and fuel release parameters is also studied in the test programme. This test represents an under-ventilated fire with a vertical jet release at low level. The flow of fuel was 0.30 kg/s, with a release pressure of 16.0-15.5 bar. The fire was under-ventilated, with a variation of air-to-fuel equivalence ratio of 0.65±0.17.

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