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Abstract:
The lighting performance of top light pipe in summer of Beijing has been measured to analyze whether the top light pipe can satisfy the general job's lighting or not. The results showed that the indoor maximum and minimum average illuminance were 314.188 lx and 54.996 lx respectively in the sunshine day and which were 138.596 lx and 29.28 lx respectively in the cloudy day. According to the 'Design Standard of Civil Building and Illuminance' GBJ 133-90, the top lighting performance can satisfy the lighting in office building, meeting room et al. Therefore, the top light pipe can be the accessorial illuminance equipment to substitute partial or total artificial light sources in daily life to decrease the energy consumption of lighting.
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Journal of Engineering Thermophysics
ISSN: 0253-231X
Year: 2008
Issue: 6
Volume: 29
Page: 1039-1041
ESI Discipline: PHYSICS;
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ESI Highly Cited Papers on the List: 0 Unfold All
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30 Days PV: 0