 High performance natural lighting system combined with SPSCShih-Chuan Yeh Renewable Energy, 2019, vol. 143, issue C, 226-232 Abstract: This paper analyzed the characteristics of the transmitted light of SPSC by a numerical model and simulation program. The measured daylight illuminances during the summer of 2016 were combined with the numerical model to assess the efficiency of this separate natural lighting system. The results showed that the average efficiency of the emerging sunlight that was transmitted from the undersides of the sunlight collector during the day were more than 64% for SPSCs with both a 70° apex and a 110° apex. The measured results showed that the average sunlight illuminance was more than 80 kLux under both clear sky and scattered sky conditions during the day at New Taipei city during the summer of 2016. This study also evaluated the splitting ratio of light beam when daylight illuminating different apex SPSC at different time. The distribution of the incident sunlight of an SPSC could improve the flexibility of using solar energy in separate hybrid natural lighting systems. Keywords: Natural lighting; Solar energy; Degree of splitting; Prismatic sunlight collector (search for similar items in EconPapers) Downloads: (external link) Related works: Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:143:y:2019:i:c:p:226-232 DOI: 10.1016/j.renene.2019.05.002 Access Statistics for this article Renewable Energy is currently edited by Soteris A. Kalogirou and Paul Christodoulides More articles in Renewable Energy from Elsevier |
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