https://www.mdu.se/

mdh.sePublikasjoner
Endre søk
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Effects of longitudinal ventilation on fire growth and maximum heat release rate
SP Technical Research Institute of Sweden, Borås, Sweden.
SP Technical Research Institute of Sweden, Borås, Sweden. (MERO)ORCID-id: 0000-0001-6758-6067
2010 (engelsk)Konferansepaper, Publicerat paper (Annet vitenskapelig)
Abstract [en]

An analysis, based on two different series of model scale tests, of the effects of ventilation on maximum heat release rate and fire growth rates is presented. In both model scale test series, wood cribs of different porosity, size and numbers were used.   Both ambient free burn tests and tests inside a model-scale tunnel were performed. The tunnels varied from 0.3 m to 0.6 m in width and from 0.2 m to 0.4 m in height. The longitudinal velocity varied between 0.22 m/s and 1.12 m/s.   

The tests show that for a higher porosity wood crib and higher velocities than 0.45 m/s, an increasing ventilation rate increases the maximum heat release rate in the range of 1.3 to 1.7 times the value measured outside the tunnel under ambient conditions. For the lower porosity wood crib and higher velocities, the corresponding increase in the maximum heat release rates was 1.8 and 2.2, respectively.  For the case with a velocity of 0.67 m/s, the linear fire growth rate increased by a factor of 5–10 times compared to the free burn case, depending on the dimensions of the tunnel cross-section.

sted, utgiver, år, opplag, sider
2010. s. 395-406
HSV kategori
Forskningsprogram
energi- och miljöteknik
Identifikatorer
URN: urn:nbn:se:mdh:diva-22826OAI: oai:DiVA.org:mdh-22826DiVA, id: diva2:664605
Konferanse
Fourth International Symposium on Tunnel Safety and Security
Tilgjengelig fra: 2013-11-15 Laget: 2013-11-15 Sist oppdatert: 2019-12-12bibliografisk kontrollert

Open Access i DiVA

Fulltekst mangler i DiVA

Person

Lönnermark, Anders

Søk i DiVA

Av forfatter/redaktør
Ingason, HaukurLönnermark, Anders

Søk utenfor DiVA

GoogleGoogle Scholar

urn-nbn

Altmetric

urn-nbn
Totalt: 73 treff
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf