Characteristics of Air Flow through Windows

Per Heiselberg, Henrik Dam, Lars C. Sørensen, Peter V. Nielsen, Kjeld Svidt

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This paper describes the first results of a series of laboratory investigations that is performed to characterise three different window types. The results show the air flow conditions for different ventilation strategies and temperature differences. For one of the windows values of the discharge coefficient are shown for both isothermal and non-isothermal flow conditions and the thermal comfort conditions are evaluated by measurements of velocity and temperature levels in the air flow in the occupied zone.
Original languageEnglish
Place of PublicationAalborg
PublisherDept. of Building Technology and Structural Engineering, Aalborg University
Number of pages9
Publication statusPublished - 1999
SeriesIndoor Environmental Engineering

Bibliographical note

Presented at the First International One Day Forum on Natural and Hybrid Ventilation, HybVent Forum '99, Sidney, Australia, September 1999

PDF for print: 16 pp.


  • Ventilation
  • Air Flow
  • Windows


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