Analysis of the daylight performance of a glazing system with Parallel Slat Transparent Insulation Material (PS-TIM)
Daylight plays an important role in the energy efficiency and indoor environmental quality of an office building. An innovative façade system where parallel transparent/translucent plastic slats are sandwiched between glass panes to form a Parallel Slat Transparent Insulation Material (PS-TIM) is pr...
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| Format: | Article |
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Elsevier
2017
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| Online Access: | https://eprints.nottingham.ac.uk/41860/ |
| _version_ | 1848796370462310400 |
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| author | Sun, Yanyi Wu, Yupeng Wilson, Robin |
| author_facet | Sun, Yanyi Wu, Yupeng Wilson, Robin |
| author_sort | Sun, Yanyi |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | Daylight plays an important role in the energy efficiency and indoor environmental quality of an office building. An innovative façade system where parallel transparent/translucent plastic slats are sandwiched between glass panes to form a Parallel Slat Transparent Insulation Material (PS-TIM) is proposed as a strategy to effectively increase the thermal resistance of window systems, while providing better daylight performance. In this paper, the optical performance (as defined by Bidirectional Scattering Distribution Function) of a double glazed window containing PS-TIM systems with different slat pitches (the distance between neighbouring slats), slat tilt angles, as well as the slat materials (transparent and translucent) was obtained using a ray-tracing technique. Then, the annual daylight performance of a typical office building with various PS-TIM applied under different climatic conditions and at different orientations was investigated using RADIANCE. The simulation results show that PS-TIM with translucent slats offers better daylight performance than conventional double glazing: it can increase the percentage of annual working hours under daylight, where the illuminance lies in the useful range by up to 79%. It also achieves a homogenous distribution of daylight within the internal working space and effectively reduces the possibility of glare. When applying PS- TIM at higher site latitude, smaller slat pitches are required to maximise useful daylight. Optimised PS-TIM geometry is also affected by local prevailing sky conditions. |
| first_indexed | 2025-11-14T19:46:54Z |
| format | Article |
| id | nottingham-41860 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:46:54Z |
| publishDate | 2017 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-418602020-05-04T18:37:47Z https://eprints.nottingham.ac.uk/41860/ Analysis of the daylight performance of a glazing system with Parallel Slat Transparent Insulation Material (PS-TIM) Sun, Yanyi Wu, Yupeng Wilson, Robin Daylight plays an important role in the energy efficiency and indoor environmental quality of an office building. An innovative façade system where parallel transparent/translucent plastic slats are sandwiched between glass panes to form a Parallel Slat Transparent Insulation Material (PS-TIM) is proposed as a strategy to effectively increase the thermal resistance of window systems, while providing better daylight performance. In this paper, the optical performance (as defined by Bidirectional Scattering Distribution Function) of a double glazed window containing PS-TIM systems with different slat pitches (the distance between neighbouring slats), slat tilt angles, as well as the slat materials (transparent and translucent) was obtained using a ray-tracing technique. Then, the annual daylight performance of a typical office building with various PS-TIM applied under different climatic conditions and at different orientations was investigated using RADIANCE. The simulation results show that PS-TIM with translucent slats offers better daylight performance than conventional double glazing: it can increase the percentage of annual working hours under daylight, where the illuminance lies in the useful range by up to 79%. It also achieves a homogenous distribution of daylight within the internal working space and effectively reduces the possibility of glare. When applying PS- TIM at higher site latitude, smaller slat pitches are required to maximise useful daylight. Optimised PS-TIM geometry is also affected by local prevailing sky conditions. Elsevier 2017-03-15 Article PeerReviewed Sun, Yanyi, Wu, Yupeng and Wilson, Robin (2017) Analysis of the daylight performance of a glazing system with Parallel Slat Transparent Insulation Material (PS-TIM). Energy and Buildings, 139 . pp. 616-633. ISSN 1872-6178 Parallel Slat Transparent Insulation Material (PS-TIM); RADIANCE; Daylight performance http://www.sciencedirect.com/science/article/pii/S0378778817300075 doi:10.1016/j.enbuild.2017.01.001 doi:10.1016/j.enbuild.2017.01.001 |
| spellingShingle | Parallel Slat Transparent Insulation Material (PS-TIM); RADIANCE; Daylight performance Sun, Yanyi Wu, Yupeng Wilson, Robin Analysis of the daylight performance of a glazing system with Parallel Slat Transparent Insulation Material (PS-TIM) |
| title | Analysis of the daylight performance of a glazing system with Parallel Slat Transparent Insulation Material (PS-TIM) |
| title_full | Analysis of the daylight performance of a glazing system with Parallel Slat Transparent Insulation Material (PS-TIM) |
| title_fullStr | Analysis of the daylight performance of a glazing system with Parallel Slat Transparent Insulation Material (PS-TIM) |
| title_full_unstemmed | Analysis of the daylight performance of a glazing system with Parallel Slat Transparent Insulation Material (PS-TIM) |
| title_short | Analysis of the daylight performance of a glazing system with Parallel Slat Transparent Insulation Material (PS-TIM) |
| title_sort | analysis of the daylight performance of a glazing system with parallel slat transparent insulation material (ps-tim) |
| topic | Parallel Slat Transparent Insulation Material (PS-TIM); RADIANCE; Daylight performance |
| url | https://eprints.nottingham.ac.uk/41860/ https://eprints.nottingham.ac.uk/41860/ https://eprints.nottingham.ac.uk/41860/ |