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HSE OTI 92 597

Behaviour of oil and gas fires in the presence of confinement and obstacles

Work Package FL2

BFETS Phase 1

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SUMMARY

This report is an appraisal of:

  • Current knowledge on the characteristics and hazards produced by hydrocarbon fires in offshore structures where there are degrees of confinement and presence of obstructions;
  • The ability to predict fire behaviour for hazard assessment and fire engineering.

The report should be read with that on open fires, FL1.

This report is directed to representatives of Participating Companies. It contains the necessary detail of a desk-top reference manual for staff directly involved in offshore hazard assessment and fire engineering.

The report combines knowledge on:

  • Cellulosic fires in onshore buildings;
  • Small-scale studies on hydrocarbon fires in enclosures;
  • Characteristics of offshore structures;
  • Offshore fire events.

to identify for offshore fires:

  • Applicable areas of fire science and engineering;
  • Valid predictive approaches;
  • Areas requiring better definition.

The status of knowledge and predictive ability are presented. Specific predictive models are reviewed. Quality requirements of models are stated.

The behaviour of large hydrocarbon fires under offshore conditions has received comparatively little attention but there are clear leads to improve knowledge and fire predictions. Accurate prediction is essential to provide reliable fire loading source terms for use in offshore design and hazard assessment.

The full report is publicly available from the HSE Website at www.hse.gov.uk/research/otipdf/oti92597.pdf.

Publisher: HSE
Published in: 1992
Keywords:
BFETS Phase 1 / Work Package FL2 / Fire behaviour with confinement and obstacles

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