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Measuring Air Change Rates using the PFT Technique in Residential Buildings in Northern Portugal
University of Gävle, Department of Technology and Built Environment, Ämnesavdelningen för inomhusmiljö. (Ventilation och luftkvalité)
2006 (English)In: Proceedings of EPIC 2006 AIVC Conference,: Lyon, France 2006, 2006, p. 161-168Conference paper, Published paper (Refereed)
Abstract [en]

Portugal has technical recommendations and standards regarding ventilation rates in natural ventilation systems. However these ventilation rates have not been fulfilled in most residential buildings recently erected in Portugal. We believe that natural ventilation systems alone are unlikely to guarantee the recommended ventilation, and so we characterized the performance of a mixed ventilation system consisting of an air inlet through self-adjustable inlets in bedrooms and living rooms, natural exhaust in bathrooms and fan exhaust systems in kitchens. We measured ventilation conditions in a residential complex of 94 apartments in the Porto area using the passive tracer gas method, more precisely the PFT technique. The study evaluates the façade’s permeability and the respective air exchange rates per compartment using the PFT technique. Seven flats were analyzed, six of which have a mixed ventilation system (continuous exhaust system in the kitchen and natural exhaust in the bathroom). The seventh flat has a natural ventilation system, enabling the performance of the two systems to be compared. The experimental results allow, namely, the evaluation of the influence of insulation, a grid with low head loss and a static ventilator in the duct of the bathroom and the continuous exhaust ventilation in the kitchen.

Place, publisher, year, edition, pages
2006. p. 161-168
Keywords [en]
Ventilation, dwellings, air change rate (ACH), PFT
Identifiers
URN: urn:nbn:se:hig:diva-912OAI: oai:DiVA.org:hig-912DiVA, id: diva2:117574
Conference
AIVC 27th conference, Lyon, France, 20-22 November 2006
Available from: 2007-12-04 Created: 2007-12-04 Last updated: 2018-03-13Bibliographically approved

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Stymne, Hans

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CiteExportLink to record
Permanent link

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