Daylight luminous environment with prismatic film glazing in deep depth manufacture buildings
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In this paper, indoor illuminance distributions with a microstructured prismatic film glazing in a deep depth manufacture space were measured. The measured illuminance data with the prismatic film glazing were compared to Radiance simulation results with a conventional glazing. This study shows that using prismatic film glazing at side windows can improve indoor illuminance levels and illuminance uniformity for inner spaces. The technology can work effectively for deep depth manufacture spaces under a clear sky but less effective under an overcast sky for improving illuminance levels and illuminance uniformity. Luminance image and glare metrics were also compared between the prismatic film glazing and conventional glazing. The angle-dependent transmittance properties of light-scattering for the prismatic films with direct sunlight present a different luminance pattern from the conventional glazing with higher peak luminance values but smaller peak luminance areas. In general, the simulated glare metrics with the prismatic film glazing presented lower DGP and DGI glare index than those with the conventional glazing. The time and orientation which may cause high glare metrics and possible discomfort glare with the prismatic film glazing in the deep depth manufacture space are also discussed.
Keywordsluminous environment manufacture buildings illuminance uniformity luminance glare metrics
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The project is supported by the Jiangsu Nature Science Research Funding (SBK2016021215), the MOHURD Science and Technology Research Project (2017-K1-010), and Suzhou Municipal Research Funding (SS201730).
- 3M (2017). Daylight redirect film. Available at https://doi.org/multimedia.3m.com/mws/media/1209715O/3m-daylight-redirecting-film.pdf. Accessed 10 Jul 2017.
- Andersen M (2004). Innovative bidirectional video-goniophotometer for advanced fenestration systems. PhD Thesis. E’cole polytechnique f’ed’erale de Lausanne, Switzerland.Google Scholar
- CIE (1995). Discomfort glare in interior lighting, CIE 117–1995. International Commission on Illumination.Google Scholar
- Heschong Mahone Group (2003). Windows and Offices: A Study of Office Work Performance and The Indoor Environment. Sacremento CA, USA: California Energy Commission.Google Scholar
- IEA (2000). Daylight in Buildings: A Source Book on Daylighting Systems and Components. International Energy Agency Energy.Google Scholar
- Klems JH (1994a). A new method for predicting the solar heat gain of complex fenestration systems: I. Overview and derivation of the matrix layer calculation. ASHRAE Transactions, 100 (1): 1065–1072.Google Scholar
- Klems JH (1994b). A new method for predicting the solar heat gain of complex fenestration systems: II. Detailed description of the matrix layer calculation. ASHRAE Transactions, 100 (1): 1073–1086.Google Scholar
- LBNL (2017). BSDFViewer, Version1.2. Available at https://doi.org/www.radianceonline.org/download-install/third-party-utilities/bsdf-viewer. Accessed 10 Jul 2017.
- RETROSolar (2014). RETROLux. Available at https://doi.org/www.retrosolar.de/flash/ani_rlux_e.html. Accessed 25 Feb 2014.. Accessed 25 Feb 2014.
- Standardization Administration (2008). Method of Daylighting Measurements, GB/T5699-2008. Beijing: Standards Press of China. (in Chinese)Google Scholar