Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Ignition of natural fuels from strikes between steel and rocks
RISE Research Institutes of Sweden, Safety and Transport, Fire and Safety.ORCID iD: 0000-0001-8670-062x
RISE Research Institutes of Sweden, Safety and Transport, Fire and Safety.ORCID iD: 0000-0002-7140-4737
RISE Research Institutes of Sweden, Safety and Transport, Fire and Safety.ORCID iD: 0000-0002-4687-9554
RISE Research Institutes of Sweden, Safety and Transport, Fire and Safety.
2022 (English)Report (Other academic)
Abstract [en]

The ignition of natural fuels by sparks from strikes between metals and hard rock is far from understood and the ignition potential of sparks from rock strikes during heavy machinery operations is disputed in the scientific literature. This study utilises a spectrally resolved technique to study the temperature evolution of metal sparks from rock strikes. The study shows that initial temperature after collision can easily reach 1500 °C and this temperature can increase additionally by several hundred degrees as rapid oxidation processes are initiated, often leading to further disintegration of the fragment. The average temperature of fragments from such collisions is here measured to 1400 – 2000 °C and the combination of temperature, size and exothermic processes makes them viable for forest litter igniting. However, ignition on forest lands is always an unlikely, although possible outcome of heavy machinery operations and should be considered in risk assessment of the activity.

Place, publisher, year, edition, pages
2022. , p. 54
Series
RISE Rapport ; 2022:22
Keywords [en]
Ignition, sparks, stone, metal, forestry, wildfire
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:ri:diva-62355ISBN: 978-91-89561-39-7 (electronic)OAI: oai:DiVA.org:ri-62355DiVA, id: diva2:1723519
Available from: 2023-01-03 Created: 2023-01-03 Last updated: 2023-06-05Bibliographically approved

Open Access in DiVA

fulltext(8670 kB)107 downloads
File information
File name FULLTEXT01.pdfFile size 8670 kBChecksum SHA-512
78c2a8c4f122f338bad7c69347cfd5e9d97cf622fdd1567021246eff58b049bae3c4500610d8aa9b45671f73230c24676dca3aef61b17e5978fea68e59759a97
Type fulltextMimetype application/pdf

Authority records

Sjöström, JohanFörsth, MichaelOtxoterena Af Drake, Paul

Search in DiVA

By author/editor
Sjöström, JohanFörsth, MichaelOtxoterena Af Drake, Paul
By organisation
Fire and Safety
Engineering and Technology

Search outside of DiVA

GoogleGoogle Scholar
Total: 107 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

isbn
urn-nbn

Altmetric score

isbn
urn-nbn
Total: 398 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf