Potential Effects of Vacuum Insulating Glazing Application for Reducing Greenhouse Gas Emission (GHGE) from Apartment Buildings in the Korean Capital Region

Korea has set a goal of reducing greenhouse gas emissions (GHGEs) to levels 37% below the “business as usual (BAU)” level by 2030, and the building sector, in particular, aims to reduce GHGEs by 45,000,000-ton CO2-eq by 2020. In order to reach this goal, it is crucial to reduce GHGEs that result fro...

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Bibliographic Details
Published in:Energies (Basel) 2020-06, Vol.13 (11), p.2828
Main Authors: Baek, Sanghoon, Kim, Sangchul
Format: Article
Language:English
Subjects:
Apartment buildings
Apartments
Buildings
Carbon dioxide
Climate change
Concrete structures
Emissions
Energy consumption
Glazing
Greenhouse effect
greenhouse gas emissions
Greenhouse gases
Heat transfer
Households
Housing
Immunoglobulins
insulating glazing (IG)
Residential areas
Vacuum
vacuum insulating glazing (VIG)
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Summary:Korea has set a goal of reducing greenhouse gas emissions (GHGEs) to levels 37% below the “business as usual (BAU)” level by 2030, and the building sector, in particular, aims to reduce GHGEs by 45,000,000-ton CO2-eq by 2020. In order to reach this goal, it is crucial to reduce GHGEs that result from energy consumption in apartment buildings, which account for approximately 65% of all buildings in the capital region where the population is concentrated. Moreover, as apartment buildings not only have high window-to wall area ratios, but also use insulating glazing (IG) with low thermal performance, an advanced window system with low heat transmittance (U-value), such as a concrete structure, is necessary for effective GHGE reduction. Therefore, this study aims to evaluate the GHGE reduction effects from replacing existing IG vacuum insulating glazing (VIG) with low U-values in the apartment housing located in the capital region. The analysis revealed the possibility of a GHGE reduction by 45%–79% with the application of commercial VIG with U-values of 0.7 W/m2·K in lieu of the existing IG with U-values ranging from 1.2 to 3.3 W/m2·K for all apartment buildings located in the capital region. Furthermore, GHGEs could be reduced by 82%–93% by replacing the existing IG with VIG with U-values of 0.2 W/m2·K.
ISSN:1996-1073
1996-1073
DOI:10.3390/en13112828