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Rapid time varying ventilation flow rates as a mean of increasing the ventilation efficiency
University of Gävle, Department of Technology and Built Environment, Ämnesavdelningen för inomhusmiljö. (Ventilation och Luftkvalitét)
University of Gävle, Department of Technology and Built Environment, Ämnesavdelningen för inomhusmiljö. (Lab. Ventilation och Luftkvalitét)
2004 (English)In: Roomvent 2004 / [ed] Gameiro M. C. Da Silva, 2004Conference paper, Published paper (Refereed)
Abstract [en]

The paper reports on findings from a series of experiments where the supply flow rate was varied periodically in time. All experiments were conducted in a small scale model with water as operating fluid. The flow was visualised by adding particles to the water and the streaks were recorded with a digital camera. The main result is that there exist variations that generate a role up of the base flow by generation of vortices that are shed into the stagnant region.

Place, publisher, year, edition, pages
2004.
Identifiers
URN: urn:nbn:se:hig:diva-874OAI: oai:DiVA.org:hig-874DiVA, id: diva2:117536
Conference
Roomvent 2004 Coimbra Portugal, 5-8 September 2004 2004
Available from: 2007-12-10 Created: 2007-12-10 Last updated: 2018-03-13Bibliographically approved

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Sandberg, MatsElvsén, Per-Åke

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CiteExportLink to record
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