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Sustainability 2014, 6(5), 2786-2801; doi:10.3390/su6052786

Solar and Lighting Transmission through Complex Fenestration Systems of Office Buildings in a Warm and Dry Climate of Chile

1
School of Architecture, Pontificia Universidad Católica de Chile, El Comendador 1916, Providencia, Santiago 7520245, Chile
2
Department of Construction Engineering and Management, School of Engineering, Pontificia Universidad Católica de Chile, Vicuña Mackenna 4860, Macul, Santiago 7820436, Chile
3
Center for Sustainable Urban Development (CEDEUS), Pontificia Universidad Católica de Chile, El Comendador 1916, Providencia, Santiago 7520245, Chile
These authors contributed equally to this work.
*
Author to whom correspondence should be addressed.
Received: 28 January 2014 / Revised: 28 April 2014 / Accepted: 28 April 2014 / Published: 13 May 2014
(This article belongs to the Section Energy Sustainability)
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Abstract

Overheating, glare, and high-energy demand are recurrent problems in office buildings in Santiago, Chile (33°27'S; 70°42'W) during cooling periods. Santiago climate is warm and dry, with high solar radiation and temperature during most of the year. The objective of this paper is to evaluate the thermal and daylighting performance of office buildings transparent façades composed of three different complex fenestration systems (CFS). Each CFS contains a different external shading device (ESD): (1) external roller, (2) vertical undulated and perforated screens, and (3) tilted undulated and perforated screens. The study was carried out by in situ monitoring in three office buildings in Santiago, Chile. Buildings were selected from a database of 103 buildings, representing those constructed between 2005 and 2011 in the city. The monitoring consisted of measuring the short wave solar and daylighting transmission through fenestration systemsby means of pyranometers and luxometers, respectively. This paper shows measurements that were carried out during summer period. A good performance is observed in a building with the external roller system. This system—applied to a northwest façade—shows a regular and high solar and daylighting control of incoming solar radiation. The other two ESD systems evidence a general good performance. However, some deficiencies at certain times of the day were detected, suggesting a non-appropriated design. View Full-Text
Keywords: external shading devices; short-wave solar transmission; daylighting transmission; office buildings external shading devices; short-wave solar transmission; daylighting transmission; office buildings
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MDPI and ACS Style

Bustamante, W.; Vera, S.; Prieto, A.; Vásquez, C. Solar and Lighting Transmission through Complex Fenestration Systems of Office Buildings in a Warm and Dry Climate of Chile. Sustainability 2014, 6, 2786-2801.

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