Air flows in a school with fan-assisted natural ventilation, with the focus on the opening of the exhaust windows

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceedingpeer-review

Abstract

In schools the air flow is one of the most important factors with regard to the well-being and performance of the children. Some school buildings have a fan assisted natural ventilation system. In some buildings windows are the only exhaust air component. The teachers can be requested to take an active part in the control of these ventilation systems. The objective is to examine the air flows and air directions when the exhaust windows are in different positions. This is studied by computer calculations with the program PFS. The results show that when all openings are opened as intended the required air flows are attained. When exhaust openings are opened in an unintended position, cases with very low or reverse air flow may occur. The position of the exhaust openings seems to be significant for the amount of supply air flow, implying that the position of the exhaust openings should be carefully monitored.
Original languageEnglish
Title of host publicationProceedings of Indoor Air 2008
PublisherInternational Society of Indoor Air Quality and Climate (ISIAQ)
Number of pages8
VolumePaper ID 541
Publication statusPublished - 2008
Event11th International Conference on Indoor Air Quality and Climate, 2008 - Copenhagen, Copenhagen, Denmark
Duration: 2008 Aug 172008 Aug 22

Publication series

Name
VolumePaper ID 541

Conference

Conference11th International Conference on Indoor Air Quality and Climate, 2008
Country/TerritoryDenmark
CityCopenhagen
Period2008/08/172008/08/22

Subject classification (UKÄ)

  • Building Technologies

Free keywords

  • Ventilation
  • Air flow
  • Reverse flow
  • Exhaust opening
  • Window
  • Fan assisted natural ventilation

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