Single-sided natural ventilation through a centre-pivot roof window

Ahsan Iqbal, Peter V. Nielsen, Amalie Gunner, Alireza Afshari

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

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Abstract

The characteristics of centre pivot roof windows for wind driven single-sided ventilation has not been studied before. These types of windows are dominating roof windows in Europe. Knowledge of flow characteristics of this kind of window is essential for accurate designing of natural ventilation systems. In this study, numerical methods were used to characterise a centre-pivot roof window for wind-driven single-sided ventilation. A 1:20 scale model house of the Energy Flex House (Denmark) was used in this study. The roof slope was 36o. It was found that the single-sided ventilation through the centre-pivot roof window can be characterised by a factor called the flow factor. The flow factor was a function of the sash opening-angle and wind direction. The flow factor increased with increase in opening-angle and decreased with increase in wind direction.
Original languageEnglish
Title of host publicationProceedings Indoor Air 2014
Number of pages7
Place of PublicationHong Kong
PublisherISIAQ
Publication dateJul 2014
EditionUSB-stick
Pages1-7
Article numberHP0226
ChapterTopic B4: Ventilation
Publication statusPublished - Jul 2014
Event13th International Conference on Indoor Air Quality and Climate, Indoor Air 2014: The 13th International Conference on Indoor Air Quality and Climate - Hong Kong, Hong Kong
Duration: 7 Jul 201412 Jul 2014

Conference

Conference13th International Conference on Indoor Air Quality and Climate, Indoor Air 2014
Country/TerritoryHong Kong
CityHong Kong
Period07/07/201412/07/2014

Keywords

  • Single-sided Ventilation
  • CFD
  • centre-pivot roof window

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