2D Computational Analysis of a Vacuum Glazing Installation in a Wood-Based Window Frame in the Context of the Linear Thermal Transmittance Ψg
This study investigates the linear thermal transmittance coefficient Ψg of vacuum glazing when installed in a wooden window frame. Vacuum glazing is a promising technology for enhancing the energy efficiency of a building by eliminating convective and conductive heat transfer within a vacuum gap. Ho...
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| Format: | Article |
| Language: | English |
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Sciendo
2025-06-01
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| Series: | Slovak Journal of Civil Engineering |
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| Online Access: | https://doi.org/10.2478/sjce-2025-0012 |
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| author | Blažo Adam Palko Milan |
| author_facet | Blažo Adam Palko Milan |
| author_sort | Blažo Adam |
| collection | DOAJ |
| description | This study investigates the linear thermal transmittance coefficient Ψg of vacuum glazing when installed in a wooden window frame. Vacuum glazing is a promising technology for enhancing the energy efficiency of a building by eliminating convective and conductive heat transfer within a vacuum gap. However, thermal losses at the edge seal can significantly impact its overall performance. A 2D computational analysis was conducted to evaluate Ψg values for different vacuum glazing configurations and installation positions. Unlike previous studies, this research systematically analyzes the effect of the depth of an installation on Ψg and the internal surface temperature at the glazing-frame interface. The findings indicate that vacuum glazing with an indium-based edge seal exhibits Ψg values comparable to insulating glazing units with metallic spacers, while vacuum glazing with a glass fusion seal achieves lower Ψg values. Furthermore, the study emphasizes that increasing the depth of an installation significantly reduces Ψg and improves the distribution of the surface temperature, thereby mitigating the risk of condensation. These results provide valuable insights into optimizing the integration of vacuum glazing in wooden window frames and offer practical guidelines for enhancing thermal efficiency in building applications. |
| format | Article |
| id | doaj-art-6470a1eddfb647779d539b113e12daa4 |
| institution | DOAJ |
| issn | 1338-3973 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Sciendo |
| record_format | Article |
| series | Slovak Journal of Civil Engineering |
| spelling | doaj-art-6470a1eddfb647779d539b113e12daa42025-08-20T02:42:46ZengSciendoSlovak Journal of Civil Engineering1338-39732025-06-01332536310.2478/sjce-2025-00122D Computational Analysis of a Vacuum Glazing Installation in a Wood-Based Window Frame in the Context of the Linear Thermal Transmittance ΨgBlažo Adam0Palko Milan11Faculty of Civil Engineering, Slovak University of Technology, Radlinského 11, 810 05Bratislava, Slovakia1Faculty of Civil Engineering, Slovak University of Technology, Radlinského 11, 810 05Bratislava, SlovakiaThis study investigates the linear thermal transmittance coefficient Ψg of vacuum glazing when installed in a wooden window frame. Vacuum glazing is a promising technology for enhancing the energy efficiency of a building by eliminating convective and conductive heat transfer within a vacuum gap. However, thermal losses at the edge seal can significantly impact its overall performance. A 2D computational analysis was conducted to evaluate Ψg values for different vacuum glazing configurations and installation positions. Unlike previous studies, this research systematically analyzes the effect of the depth of an installation on Ψg and the internal surface temperature at the glazing-frame interface. The findings indicate that vacuum glazing with an indium-based edge seal exhibits Ψg values comparable to insulating glazing units with metallic spacers, while vacuum glazing with a glass fusion seal achieves lower Ψg values. Furthermore, the study emphasizes that increasing the depth of an installation significantly reduces Ψg and improves the distribution of the surface temperature, thereby mitigating the risk of condensation. These results provide valuable insights into optimizing the integration of vacuum glazing in wooden window frames and offer practical guidelines for enhancing thermal efficiency in building applications.https://doi.org/10.2478/sjce-2025-0012vacuum glazingψg value2d computational analysisthermal transmittancecondensation risk |
| spellingShingle | Blažo Adam Palko Milan 2D Computational Analysis of a Vacuum Glazing Installation in a Wood-Based Window Frame in the Context of the Linear Thermal Transmittance Ψg Slovak Journal of Civil Engineering vacuum glazing ψg value 2d computational analysis thermal transmittance condensation risk |
| title | 2D Computational Analysis of a Vacuum Glazing Installation in a Wood-Based Window Frame in the Context of the Linear Thermal Transmittance Ψg |
| title_full | 2D Computational Analysis of a Vacuum Glazing Installation in a Wood-Based Window Frame in the Context of the Linear Thermal Transmittance Ψg |
| title_fullStr | 2D Computational Analysis of a Vacuum Glazing Installation in a Wood-Based Window Frame in the Context of the Linear Thermal Transmittance Ψg |
| title_full_unstemmed | 2D Computational Analysis of a Vacuum Glazing Installation in a Wood-Based Window Frame in the Context of the Linear Thermal Transmittance Ψg |
| title_short | 2D Computational Analysis of a Vacuum Glazing Installation in a Wood-Based Window Frame in the Context of the Linear Thermal Transmittance Ψg |
| title_sort | 2d computational analysis of a vacuum glazing installation in a wood based window frame in the context of the linear thermal transmittance ψg |
| topic | vacuum glazing ψg value 2d computational analysis thermal transmittance condensation risk |
| url | https://doi.org/10.2478/sjce-2025-0012 |
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