Thermal performance of a supply-air window

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ConferenceProc. 12th Annual Passive Solar Conference: 11 July 1987, Portland, Oregon, USA
Pages152158; # of pages: 7
Subjectnatural ventilation; windows; fresh air; air quality; thermal performance; windows; air quality; fresh air; energy consumption impact; Heat performance
AbstractAn experimental study to assess the thermal performance of a supply-air window and its impact on energy consumption is described. The supply-air window was a factory-sealed double-glazed window retrofitted with extra glazing on the outside. It was installed on the south wall of a two-room rear unit that was continuously monitored. Ventilation air was drawn between the sealed double-glazing and the retrofit pane through inlet holes at the bottom of the frame. An adjacent, similar two-room unit fitted with an identical factory-sealed double-glazed window was monitored as a control. Calibrated fans exhausted an air flow equivalent of 0.5 ACH from each unit. In the control unit the outdoor supply was drawn directly into the room. The paper describes the supply-air window concept and presents details of the experimental procedure and results. The thermal performance of the two test units is assessed, as well as the calculated performance of a similar unit fitted with a triple-glazed window.
Publication date
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
NRC number28363
NPARC number20375551
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Record identifier9d666156-a0f9-4793-bb69-cd5878fc87f2
Record created2012-07-23
Record modified2016-05-09
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