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Storefront Glazing on West Facade of Florida A&M University School of Architecture Building | |
| West Glass | Student: Rachel Andrews |
Interior & Exterior Glass Surfaces Temperatures for 24-hour Period on Cloudy Day
This graph compares the interior and exterior glass surface temperatures during a 24-hour period. HOBO data spans from 00:07 on Thursday 22 February 2001 through 23:55 on Thursday 22 February 2001. This particular day was generally cloudy. The exterior measurement represents the outer surface of the outer pane of a double glazed window unit. The interior measurement represents the inner surface temperature of the inner pane of the same unit. The 2 sensors are offset approximately 12" to minimize interference effects. Isolating a single day's data permits a better view of the cyclic patterns between these 2 measurements.
Questions: Based upon these glass temperature data, why is this thought to be a cloudy day; what accounts for the varying distance between the 2 curves throughout the day; could you estimate the glazing's U-value if the exterior and interior air temperatures were known?
Last updated 18 April 2001
http://www99.pair.com/vsfamu/thing/glcloud.htm