Brandprovning av aerosol- och gasolbehållare: en studie för MSB

Research output: Book/ReportReport

Abstract

This report summarizes the work in practically determining how frequently used aerosol- and propane containers are affected at fire exposure from flammable liquids. The tested aerosol- and propane containers were chosen due to common appearance in ordinary grocery- and hardware stores. The tested aerosol containers had a volume range between 15- 400 ml and the propane containers were filled with 0.35, 0.45, 5 and 6 kg of propane. The exposing heat source was burning liquid of heptane which corresponds to fire properties of common available flammable liquids that are for sale in ordinary stores.
The study shows that the aerosol containers which are exposed to flames from a flammable liquid explodes within some minutes and develops often fire clouds within the vicinity of the exploding object. Minor aerosol containers, 15-400 ml, normally divide it selves into a few pieces when they explode. When storing several of minor aerosol containers together, unexploded aerosol containers can be expected to act as missiles as adjacent containers explode as they are exposed to flames from flammable liquids. In enclosures, the explosion also results in a significant blast wave.
Fire exposed propane containers, named PC5 (5kg) and PA6 (6kg), releases pressure in different ways. The PC5 container is made of composite material that seems to be partly combusted at heat exposure with following leakage through the composite material, pressure release through the safety valve cannot be determined to be the only way of releasing pressure at heat exposure. The aluminum container (PA6) is designed both with a safety valve and a melting fuse. At one of the trials the safety valve opened briefly with a following release of the melting fuse. The opening of the melting fuse resulted in an outflow and pressure release of propane that initially developed a jet flame of 7 – 10 meters length. As the pressure went down, the jet flame decreased in length. The other test with the PA6 container resulted in a more controlled pressure release by the safety valve during 5 opening intervals.

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Subject classification (UKÄ) – MANDATORY

  • Other Civil Engineering

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Original languageSwedish
Place of PublicationLund
PublisherDivision of Fire Safety Engineering
Number of pages51
Publication statusPublished - 2015
Publication categoryResearch

Publication series

NameInstitutionsrapporter
PublisherDivision of Fire Safety Engineering
ISSN (Print)1402-3504

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