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Non-buoyant pollutant sources and particles in displacement ventilation
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Building Services Engineering.
2001 (English)In: Building and Environment, ISSN 0360-1323, E-ISSN 1873-684X, Vol. 36, no 7, 829-836 p.Article in journal (Refereed) Published
Abstract [en]

Particle transportation and ventilation efficiency, with non-buoyant pollutant sources, in a displacement-ventilated room were evaluated. A resuspension of floor deposited particles caused by the influence of the supply air or people moving around may increase the number of particles in the convection flows. Particle concentrations at different positions under steady state and transient conditions were measured. The results indicate that there seem to be little risk of resuspension of particles, in the measured size interval, by the influence of the supply air. With a forced resuspension the particle concentrations in the convection flows differ from the concentration outside the convection flow. The contaminant removal effectiveness was much dependent on the position of the pollutant sources.

Place, publisher, year, edition, pages
2001. Vol. 36, no 7, 829-836 p.
Keyword [en]
air change efficiency, contaminant removal effectiveness, displacement ventilation, particles, ventilation efficiency
National Category
Building Technologies
Identifiers
URN: urn:nbn:se:kth:diva-20741ISI: 000169515000005OAI: oai:DiVA.org:kth-20741DiVA: diva2:339438
Note
QC 20100525 NR 20140804Available from: 2010-08-10 Created: 2010-08-10 Last updated: 2017-12-12Bibliographically approved

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