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Energy Savings Resulting from Shading Devices on Single-Family Residences in Austin, Texas
Abstract
Potential annual energy savings resulting from
window shading devices on three prototypical
Austin, Texas, single-family residences were
computed in this study. Savings were calculated
for interior (shades, blinds, draperies, window
film, and tinted windows) and exterior (solar
screens, awnings, overhangs, and the effects of
recessed windows and vegetation) shading devices.
The analysis was conducted with the DOE-2
building energy analysis computer program. Nominal
baseline cases (single glazing, gas heating, and
nominal shading from eaves and neighboring
buildings) were run for each prototype. Selected
baseline variants (double glazing, all electric,
and no eaves or neighbor shading) were run to test
parameter sensitivity.
Results are reported in terms of the annual
heating and cooling energy use and energy cost,
with each device in place, as compared to the
baseline cases. The devices are ranked in term of
energy savings and energy coat savings. Another
significant result is the multiple-regression
correlation of annual heating and cooling energy
savings with Shading Coefficient and U-value that
generalizes the performance of the shading devices.
Citation
Pletzer, R. K.; Jones, J. W.; Hunn, B. D. (1987). Energy Savings Resulting from Shading Devices on Single-Family Residences in Austin, Texas. Energy Systems Laboratory (http://esl.tamu.edu); Texas A&M University (http://www.tamu.edu). Available electronically from https : / /hdl .handle .net /1969 .1 /6484.