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Building Envelope Design/Retrofit Utilizing Fresnel Type Overhangs in Hot Climates
Abstract
The selection of exterior elements for control of
solar incidence has been a major concern for
engineers, architects, and lighting designers.
This concern relates to problems of thermal heat
gain, direct glare and veiling reflectance. Of
equal concern is the quality of the view impacted
by these various shade elements. Researchers and
lighting designers have discovered these concerns
are integrally connected to each other. (Erhardt
1987) A common denominator is the concept of
luminance and adaptation levels that impact
occupant perception of the interior lighted space
and exterior views. A realistic solution to the
control of the visual environment is the Fresnel
Overhang System. This element has been available
for years but until recently has been largely
ignored. The qualities of this system and its
relationship to the thermo-visual environment
will be discussed.
Citation
Ryan, B. J.; Griffith, J. W. (1990). Building Envelope Design/Retrofit Utilizing Fresnel Type Overhangs in Hot Climates. Energy Systems Laboratory (http://esl.tamu.edu); Texas A&M University (http://www.tamu.edu). Available electronically from https : / /hdl .handle .net /1969 .1 /6598.