Journal
Sustainable Built Environment Tallinn and Helsinki Conference SBE16 Build Green and Renovate Deep
Volume 96, Issue -, Pages 965-972Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.egypro.2016.09.175
Keywords
Facade; Glazing; Spectrophotometer Tests; Energy Efficiency
Categories
Funding
- Erasmus Mundus ISAC - Improving Skills Across Continents
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A large variety of transparent materials is available for uses in buildings facades and all glazing properties must be considered in their choice. Such a selection should be a careful process of evaluation and weighing of tradeoffs. The correct glazing specifications for facades can reduce energy consumption in buildings, because the heat exchange and passage of radiation into the building as light and heat occur through transparent surfaces. Therefore, glazing significantly contributes to the heat transfer between outdoor and indoor spaces, which act directly on daylighting and thermal comfort. This manuscript addresses a spectrophotometric characterization of glazings for the study of components for the design of a modular facade system based on the climate of Portugal. The study focused on results of spectrophotometric measurements of an optical behavior in different solar spectrum intervals (ultraviolet, visible and near infrared), specifically the transmittance of some types of simple glazings. The results show the percentage of transmission to spectrum intervals, which enabled the analysis (OK?) of the efficiency of the glazing regarding daylighting and correlation to the thermal performance. Indications for specifications and adequate uses based on transmission of transparent surfaces have been obtained and complemented the datasheets available from the manufactures. (C) 2016 The Authors. Published by Elsevier Ltd.
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