PROTECTION OF LARGE FLAMMABLE STORAGE TANKS DURING REPAIR BY MEANS OF NITROGEN-FILLED HIGH EXPANSION FOAM

Storage tanks contaminated by flammable residues require protection during repair or demolition. Nitrogen-filled high expansion fire-fighting foam has been proposed for this protection. In this series of tests a 500 tonne aviation fuel storage tank was filled with appropriate foam to observe foam behavior with particular reference to oxygen contamination in aged foam. For comparison, gas inerting with nitrogen was included in the test series. In one test a hot cutting procedure was monitored for void formation and oxygen contamination of the foam. Oxygen contamination was low in foam up to three hours old. Voids and oxygen introduced by hot cutting were rapidly purged. The use of foam enabled the tank to be rendered inert using less nitrogen than with the gas alone and had the additional advantage that the inerting agent was visible.

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  • Corporate Authors:

    Elsevier Science

    Radarweg 29, P.O. Box 211
    1043NX AE Amsterdam,   Netherlands 
  • Authors:
    • Briggs, A A
  • Publication Date: 1979-2

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Filing Info

  • Accession Number: 00197089
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Files: TRIS
  • Created Date: Aug 28 1979 12:00AM