Binarti, Floriberta and Dewi, Sinta (2016) The Effectiveness of Light Shelf in Tropical Urban Context. Environmental and Climate Technologies, 18. pp. 42-53. ISSN 1691-5208
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Text (Floriberta BINARTI and Sinta DEWI)
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Abstract
Light shelf was developed to create uniform indoor illuminance. However, in hot climates the unshaded clerestory above the shelf transmits high solar heat gain. In dense urban context, these advantages and disadvantages might vary regarding the context and position of the fenestration. This study employed an integrated energy simulation software to investigate the effectiveness of light shelf application in a tropical urban context in terms of building energy consumption. Radiance and EnergyPlus based simulations performed the effects of urban canyon aspect ratio and external surface albedo on the daylighting performances, space cooling load, as well as the lighting energy consumption of the building equipped with lightshelves in 2 humid tropical cities. Comparison of the energy performances of 3 fenestration systems, i.e. fenestration without any shading device, with overhangs, and with light shelves, yielded some recommendations concerning the best application of light shelf on the certain floor levels and aspect ratio of the urban context.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Cooling load; daylighting performance; electrical lighting load; light shelf; urban geometry; urban surface albedo |
| Subjects: | Arsitektur > Teknologi Arsitektural Penelitian Dosen > Arsitektur > Teknologi Arsitektural |
| Divisions: | Fakultas Teknik > Program Studi Arsitektur |
| Depositing User: | Editor 3 uajy |
| Date Deposited: | 27 May 2022 14:28 |
| Last Modified: | 27 May 2022 14:28 |
| URI: | http://e-journal.uajy.ac.id/id/eprint/26939 |
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