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Article

Comparative Building Energy Simulation Study of Static and Thermochromically Adaptive Energy-Efficient Glazing in Various Climate Regions

by 1,2,*, 1,2, 1,2, 1,2,3 and 1,2,3,4,*
1
The Netherlands Organisation for Applied Scientific Research (TNO), High Tech Campus 25, 5656AE Eindhoven, The Netherlands
2
Brightlands Materials Center, Urmonderbaan 22, 6167RD Geleen, The Netherlands
3
Zuyd University of Applied Sciences, Nieuw Eyckholt 300, 6400AN Heerlen, The Netherlands
4
Institute for Materials Research, Inorganic and Physical Chemistry, Hasselt University, Agoralaan Building D, B-3590 Diepenbeek, Belgium
*
Authors to whom correspondence should be addressed.
Energies 2020, 13(11), 2842; https://doi.org/10.3390/en13112842
Received: 30 April 2020 / Revised: 25 May 2020 / Accepted: 26 May 2020 / Published: 3 June 2020
The building sector contributes approximately one third of the total energy consumption worldwide. A large part of this energy is used for the heating and cooling of buildings, which can be drastically reduced by use of energy-efficient glazing. In this study, we performed building energy simulations on a prototypical residential building, and compared commercially available static (low-e, solar IR blocking) to newly developed adaptive thermochromic glazing systems for various climate regions. The modeling results show that static energy-efficient glazing is mainly optimized for either hot climates, where low solar heat gain can reduce cooling demands drastically, or cold climates, where low-e properties have a huge influence on heating demands. For intermediate climates, we demonstrate that adaptive thermochromic glazing in combination with a low-e coating is perfectly suited. The newly developed thermochromic glazing can lead to annual energy consumption improvement of up to 22% in comparison to clear glass, which exceeds all other glazing systems. Furthermore, we demonstrate that in the Netherlands the use of this new glazing system can lead to annual cost savings of EU 638 per dwelling (172 m2, 25% window façade), and to annual nationwide CO2 savings of 4.5 Mt. Ergo, we show that further development of thermochromic smart windows into market-ready products can have a huge economic, ecological and societal impact on all intermediate climate region in the northern hemisphere. View Full-Text
Keywords: simulation; modelling; energy consumption; residential building; window; energy-efficient glazing; thermochromics; CO2 emission simulation; modelling; energy consumption; residential building; window; energy-efficient glazing; thermochromics; CO2 emission
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MDPI and ACS Style

Mann, D.; Yeung, C.; Habets, R.; Vroon, Z.; Buskens, P. Comparative Building Energy Simulation Study of Static and Thermochromically Adaptive Energy-Efficient Glazing in Various Climate Regions. Energies 2020, 13, 2842. https://doi.org/10.3390/en13112842

AMA Style

Mann D, Yeung C, Habets R, Vroon Z, Buskens P. Comparative Building Energy Simulation Study of Static and Thermochromically Adaptive Energy-Efficient Glazing in Various Climate Regions. Energies. 2020; 13(11):2842. https://doi.org/10.3390/en13112842

Chicago/Turabian Style

Mann, Daniel; Yeung, Cindy; Habets, Roberto; Vroon, Zeger; Buskens, Pascal. 2020. "Comparative Building Energy Simulation Study of Static and Thermochromically Adaptive Energy-Efficient Glazing in Various Climate Regions" Energies 13, no. 11: 2842. https://doi.org/10.3390/en13112842

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