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U.S. Department of Energy
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Development of daylighting prediction algorithms for atrium design

Thesis/Dissertation ·
OSTI ID:7008291
To the extent that daylight can be effectively admitted and distributed in large buildings, daylighting can reduce dependence on artificial light and conserve energy. This research analyzes the daylighting performance in actual building atriums including 4-sided, 3-sided, and linear atriums, and also to develop and validate algorithms for the prediction of daylight levels in these atriums under various sky conditions. Daylight patterns of three generic forms of building atriums are tested through extensive actual building measurements in combination with scale model tests and first-principle theories. Also, actual measured data are compared with scale model data by using statistical analysis tests to show the degree of correlation. Algorithms are developed for the prediction of daylight levels at the wall and on the ground floor of the atrium, and then conventional techniques can be used to calculate daylight levels in perimeter offices adjoining the atrium. Final algorithms based on the scale-model tests are validated by comparing with actual building measurement data for selected buildings in the Texas region. Office lighting performance and energy performance are not dealt with, but rather constitute a logical extension of this work.
Research Organization:
Texas A and M Univ., College Station (USA)
OSTI ID:
7008291
Country of Publication:
United States
Language:
English