Light-scattering properties of a woven shade-screen material used for daylighting and solar heat-gain control

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Shade-screens are widely used in commercial buildings as a way to limit the amount of direct sunlight that can disturb people in the building. The shade screens also reduce the solar heat-gain through glazing the system. Modern energy and daylighting analysis software such as EnergyPlus and Radiance require complete scattering properties of the scattering materials in the system. In this paper a shade screen used in the LBNL daylighting testbed is characterized using a photogoniometer and a normal angle of incidence integrating sphere. The data is used to create a complete bi-directional scattering distribution function (BSDF) that can be used ... continued below

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Jonsson, Jacob; Jonsson, Jacob C.; Lee, Eleanor S. & Rubin, Mike August 1, 2008.

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Shade-screens are widely used in commercial buildings as a way to limit the amount of direct sunlight that can disturb people in the building. The shade screens also reduce the solar heat-gain through glazing the system. Modern energy and daylighting analysis software such as EnergyPlus and Radiance require complete scattering properties of the scattering materials in the system. In this paper a shade screen used in the LBNL daylighting testbed is characterized using a photogoniometer and a normal angle of incidence integrating sphere. The data is used to create a complete bi-directional scattering distribution function (BSDF) that can be used in simulation programs. The resulting BSDF is compared to a model BADFs, both directly and by calculating the solar heat-gain coefficient for a dual pane system using Window 6.

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  • SPIE Optics+Photonics, San Diego, CA, August 10-14, 2008

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  • Report No.: LBNL-828E
  • Grant Number: DE-AC02-05CH11231
  • Office of Scientific & Technical Information Report Number: 936585
  • Archival Resource Key: ark:/67531/metadc902743

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  • August 1, 2008

Added to The UNT Digital Library

  • Sept. 27, 2016, 1:39 a.m.

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  • Jan. 4, 2017, 5:52 p.m.

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Jonsson, Jacob; Jonsson, Jacob C.; Lee, Eleanor S. & Rubin, Mike. Light-scattering properties of a woven shade-screen material used for daylighting and solar heat-gain control, article, August 1, 2008; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc902743/: accessed August 17, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.