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Optical and thermal properties of functional coatings on glass and plastics for energy efficient windows and daylighting
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Solid State Physics.
2008 (English)Conference paper, Published paper (Refereed)
Abstract [en]

Over the past couple of decades a number of coated glazing products have appeared on the market, converting the window from an energy drain to a possible resource in the building’s energy supply system. In this paper the light transmittance, total solar transmittance, and thermal conductivity of coated glazing currently available on the market and of future dynamic electrochromic coatings are reviewed and their function in heating or cooling dominated climates discussed. Electrochromic coatings can switch between a transparent state and an absorbing or reflecting state when a small electrical potential is applied, and hence adapt their optical properties to the present condition. Energy balance calculations for the window component stress the importance of selecting the window depending on climate. In a heating dominated climate a low-e coating with a high g-value can result in a net energy gain on a south facing façade and thus be better than an ideal wall.

 

Place, publisher, year, edition, pages
2008.
Keyword [en]
coated glazing, climate, energy efficiency, electrochromics
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:uu:diva-125236OAI: oai:DiVA.org:uu-125236DiVA: diva2:318921
Conference
7th International Conference on Coatings on Glass and Plastics
Available from: 2010-05-11 Created: 2010-05-11 Last updated: 2016-04-13Bibliographically approved

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Nilsson, Annica

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