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Uncertainty of Daylighting Performance of Manual Solar Shades and its Influence on Lighting Energy L&E 28 (2) 2020

Light & Engineering 28 (2)

Volume 28
Date of publication 04/13/2020
Pages 77–84

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Uncertainty of Daylighting Performance of Manual Solar Shades and its Influence on Lighting Energy L&E 28 (2) 2020
Articles authors:
Jian Yao, LiYi Chen, Wu Jin

Jian Yao, Ph.D. and Associate Professor at the department of architecture of Ningbo University. Dr. Yao has many years of experience in studying solar shading performance, daylighting and occupant behaviour

LiYi Chen is a lecturer at the department of architecture of Ningbo University. He has many years of experience in studying architectural design

Wu Jin is a lecturer at the department of architecture of Ningbo University. He has many years of experience in architectural education and architecture design, including commercial buildings, residential buildings, school buildings, etc.

Abstract:
Occupant behaviour significantly influences building energy consumption. This paper is devoted to studies the uncertainty of daylighting performance and lighting energy of manual solar shades on the south facade. A developed stochastic model for manual solar shades was used for co-simulation by BCVTB. Results show that uncertainty of shade action was not suppressed by the shade behaviour model with very weak relationship between different simulation outputs. Uncertainty of daylighting performance is 15.08 % while lighting energy uncertainty is 10.38 %. Although this level of energy uncertainty is not very significant, it influences economic analysis of manual solar shades and therefore, occupant related uncertainty should be taken into consideration when predicting energy performance of manual shades.
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