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Open AccessArticle

Optimum Design and Energy Performance of Hybrid Triple Glazing System with Vacuum and Carbon Dioxide Filled Gap

1
Industry Academic Cooperation Foundation, Hankyong National University, 327, Jungang-ro, Anseong-si, Gyeonggi-do 17579, Korea
2
School of Architecture, Hankyong National University, 327, Jungang-ro, Anseong-si, Gyeonggi-do 17579, Korea
*
Author to whom correspondence should be addressed.
Sustainability 2019, 11(19), 5543; https://doi.org/10.3390/su11195543
Received: 5 September 2019 / Revised: 20 September 2019 / Accepted: 7 October 2019 / Published: 8 October 2019
(This article belongs to the Section Sustainable Engineering and Science)
This study develops a hybrid triple glazing technology that combines vacuum and carbon dioxide (CO2) gaps to help store CO2 in buildings. We determine the optimal thickness of glazing and calculate its thermal transmission (U-value). The amount of energy saved by using the proposed glazing system is then compared with that when using conventional insulating gases (air, argon, and krypton). Therm & Window, a modeling and analysis program for glazing, and EnergyPlus, a building environment and energy evaluation program, were used for the analysis. The optimal thickness determined for the vacuum and CO2 sections is 6.2 mm and 19 mm, respectively. The latter section comprises a 15-mm CO2 gap and 4 mm of glass. The total thickness of the glazing is 25.2 mm and the U-value is 0.259 W/m2∙K. The energy performance of the triple glazing using vacuum and CO2 gaps is between that of glazing using vacuum and air and that using vacuum and krypton gas gaps. Further, its performance is comparable to that of triple glazing using vacuum and argon gas gaps. Therefore, the hybrid triple glazing proposed in this paper represents an advanced glazing technique that can absorb CO2 and reduce energy consumption in buildings. View Full-Text
Keywords: hybrid triple glazing; carbon dioxide; vacuum gap; U-value; energy performance hybrid triple glazing; carbon dioxide; vacuum gap; U-value; energy performance
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Baek, S.; Kim, S. Optimum Design and Energy Performance of Hybrid Triple Glazing System with Vacuum and Carbon Dioxide Filled Gap. Sustainability 2019, 11, 5543.

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