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Entrainment in a free jet generated by Positive Pressure Ventilator
Mälardalen University, School of Business, Society and Engineering, Future Energy Center.ORCID iD: 0000-0002-9598-0958
Mälardalen University, School of Business, Society and Engineering, Future Energy Center. SP Tech Res Inst Sweden, Boras, Sweden.
2014 (English)In: Fire technology, ISSN 0015-2684, E-ISSN 1572-8099, no 6, 1499-1515 p.Article in journal (Refereed) Published
Abstract [en]

Results of a simple flow model to describe the entrainment into the air cone created by a positive pressure ventilator (PPV) fan are compared to experimental data. Velocity profiles measured in the air cone of a conventional PPV ventilator are used. The entrainment coefficient and the cone angle were determined for the fan investigated. The correspondence between calculated and measured values is discussed and disparities explained. The findings from the tests are turned into practical guidance for the fire brigade and the advantages and limitations of the simplified model are discussed.

Place, publisher, year, edition, pages
2014. no 6, 1499-1515 p.
Keyword [en]
Entrainment coefficients; Fire brigade; Flow model; Measured values; Positive pressure; Practical guidance; Velocity profiles; Ventilator
National Category
Applied Mechanics
Identifiers
URN: urn:nbn:se:mdh:diva-4091DOI: 10.1007/s10694-013-0331-zISI: 000343721200010Scopus ID: 2-s2.0-84921069373OAI: oai:DiVA.org:mdh-4091DiVA: diva2:120710
Available from: 2005-09-01 Created: 2005-09-01 Last updated: 2016-12-22Bibliographically approved
In thesis
1. Smoke control in tunnels: ventilation using mobile fans
Open this publication in new window or tab >>Smoke control in tunnels: ventilation using mobile fans
2005 (English)Licentiate thesis, comprehensive summary (Other scientific)
Place, publisher, year, edition, pages
Institutionen för Samhällsteknik, 2005. 85 p.
Series
Mälardalen University Press Licentiate Theses, ISSN 1651-9256 ; 53
National Category
Engineering and Technology
Research subject
Energi- och miljöteknik
Identifiers
urn:nbn:se:mdh:diva-25 (URN)91-88834-77-8 (ISBN)
Presentation
2005-09-02, Beta, 13:15
Opponent
Supervisors
Available from: 2005-09-01 Created: 2005-09-01 Last updated: 2013-12-04

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CiteExportLink to record
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Citation style
  • apa
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