Abstract
Window solar gain is known to have a strong influence on building energy consumption and peak cooling load. Venetian blinds are routinely used to control solar gain. Software based on one-dimensional models is available to accurately predict the thermal performance of glazing systems, but the development of models for windows with shading devices is at a very early stage. A guarded heater plate apparatus has been used to measure center-glass heat transfer rates through a double-glazed window with a venetian blind in the glazing cavity. Variables examined include pane spacing, temperature difference, slat angle, and the presence of a low-emissivity coating. Results were compared with earlier measurements. The data collected provide direct guidance in the development of models to predict U-factor and solar gain for this type of glazing/shading system, leading to a more structured and quantitative design procedure.
Original language | English |
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Pages (from-to) | 13-21 |
Number of pages | 9 |
Journal | ASHRAE Transactions |
Volume | 112 PART 2 |
State | Published - 1 Jan 2006 |
Event | 2006 Annual Meeting of the American Society of Heating, Refrigerating and Air-Conditioning Engineers, ASHRAE - Quebec City, QC, Canada Duration: 24 Jun 2005 → 28 Jun 2005 |
ASJC Scopus subject areas
- Building and Construction
- Mechanical Engineering