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Brandprovning av aerosol- och gasolbehållare : en studie för MSB

Svensson, Stefan LU ; Madsen, Dan LU ; Barton, John LU and van Hees, Patrick LU (2015) In Institutionsrapporter
Abstract (Swedish)
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... (More)
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. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Book/Report
publication status
published
subject
keywords
brandfarliga gaser, brandfarliga vätskor, pölbränder, jet bränder, explosion, aerosolbehållare, propan, gasol
in
Institutionsrapporter
pages
51 pages
publisher
Division of Fire Safety Engineering
ISSN
1402-3504
language
Swedish
LU publication?
yes
id
7d02143b-845d-4540-be6d-a0576e9c15ca
date added to LUP
2017-04-11 15:16:50
date last changed
2017-04-24 11:53:13
@techreport{7d02143b-845d-4540-be6d-a0576e9c15ca,
  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.<br/>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.<br/>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.},
  author       = {Svensson, Stefan and Madsen, Dan and Barton, John and van Hees, Patrick},
  institution  = {Division of Fire Safety Engineering},
  issn         = {1402-3504},
  keyword      = {brandfarliga gaser,brandfarliga vätskor,pölbränder,jet bränder,explosion,aerosolbehållare,propan,gasol},
  language     = {swe},
  pages        = {51},
  series       = {Institutionsrapporter},
  title        = {Brandprovning av aerosol- och gasolbehållare : en studie för MSB},
  year         = {2015},
}