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Energy Performance of Dynamic Windows in Different Climates
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Building Technology.
2015 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesisAlternative title
Energiprestanda för dynamiska fönster under olika klimatförhållanden (Swedish)
Abstract [en]

The European Union (EU) has expressed determination of reducing its energy consumption and the EU’s 2010 Energy Performance of Buildings Directive states that all new buildings must be nearly zero energy by the end of the year 2020.

Dynamic or “smart” windows have been shown to be able to reduce HVAC energy consumption, lighting energy and peek cooling loads in hot climates in the US but it is difficult to find any work concerned with colder climates. This study is intended to capture the performance of dynamic windows in a variety of European climates to explore potential contributions to reaching the EU’s energy goals.

The building energy simulations of this study have been conducted in IDA ICE for an office section with a large window. Three model variants are compared: without a window shading, with an external window blind and with a dynamic window. This comparison is repeated for six different locations; Kiruna, Reykjavik, Stockholm, Copenhagen, Paris and Madrid.

The results of this study show that the dynamic window can reduce the total consumed energy for lighting, heating and cooling in the range of 10%-30% more than the external blind, depending on location. The reduction is 50%-75% when compared to the unshaded window. This level of performance can move Europe a step closer to zero energy buildings.

Place, publisher, year, edition, pages
2015. , 55 p.
TRITA-BYTE, Master Thesis 437, 2015
, ISSN, ISSN 1651-5536
Keyword [en]
IDA ICE, Building Energy Simulation, Electrochromic Window, Smart Window, Window Shading
National Category
Building Technologies
URN: urn:nbn:se:kth:diva-169866ISRN: KTH/BYTE/EX-437-SEOAI: diva2:825465
Educational program
School of Architecture and the Built Environment (ABE) - Master of Science in Engineering
Available from: 2015-08-11 Created: 2015-06-23 Last updated: 2015-08-11Bibliographically approved

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