A review of the FIVA project: Novel windows employing vacuum glazing products
Vacuum glazing products have been in development for the past decades. Such glazing products regularly feature two parallel glass panes that have a small, evacuated gap in their interstitial space. To maintain the vacuum and the form of the glass product, regularly vacuum tight edge seals and a grid...
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| Format: | Article |
| Language: | English |
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Czech Technical University in Prague
2022-12-01
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| Series: | Acta Polytechnica CTU Proceedings |
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| Online Access: | https://ojs.cvut.cz/ojs/index.php/APP/article/view/8249 |
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| author | Ulrich J. Pont Peter Schober Magdalena Wölzl Matthias Schuss Jakob Haberl |
| author_facet | Ulrich J. Pont Peter Schober Magdalena Wölzl Matthias Schuss Jakob Haberl |
| author_sort | Ulrich J. Pont |
| collection | DOAJ |
| description | Vacuum glazing products have been in development for the past decades. Such glazing products regularly feature two parallel glass panes that have a small, evacuated gap in their interstitial space. To maintain the vacuum and the form of the glass product, regularly vacuum tight edge seals and a grid of distance pillars are integrated. During the years of development, the major focus was set on the production and durability aspects of the glass products, but relatively few efforts had been conducted towards the integration of such glass products into window constructions. Employing typically used double- and triple glazing windows’ frames does not represent a feasible option. This is due to the specification given by vacuum glazing products, such as their small thickness and the requirement for sufficient glass edge coverage due to the major thermal bridge adjacent to the edge seal.
The authors, together with major players from the window producing industry, started a R&D effort that targeted disruptive new concepts for vacuum glass windows. Four different designs were developed that not only integrated vacuum glass products, but also featured unusual opening patterns, the latest generation of electrically driven fitting products, and specific seals. The thermal and acoustical performance of the prototypes was improved during the development via employment of numeric thermal simulation and lab testing. The present contribution illustrates the four prototypes and their performance, which – for instance – pertaining to the UW-value is down to 0.6–0.7 W · m−2 · K−1 at a glass thickness of less than 1 cm. |
| format | Article |
| id | doaj-art-4e2a1fecf8e54729bf30aca722f63fda |
| institution | DOAJ |
| issn | 2336-5382 |
| language | English |
| publishDate | 2022-12-01 |
| publisher | Czech Technical University in Prague |
| record_format | Article |
| series | Acta Polytechnica CTU Proceedings |
| spelling | doaj-art-4e2a1fecf8e54729bf30aca722f63fda2025-08-20T03:14:40ZengCzech Technical University in PragueActa Polytechnica CTU Proceedings2336-53822022-12-013836837410.14311/APP.2022.38.03685489A review of the FIVA project: Novel windows employing vacuum glazing productsUlrich J. Pont0Peter Schober1Magdalena Wölzl2Matthias Schuss3Jakob Haberl4TU Wien, Department of Building Physics and Building Ecology, Karlsplatz 13, A-1040 Vienna, AustriaAustrian Forest Products Research Society (HFA-ÖGH), Franz-Grill-Straße 7 A-1030 Vienna, AustriaTU Wien, Department of Building Physics and Building Ecology, Karlsplatz 13, A-1040 Vienna, AustriaTU Wien, Department of Building Physics and Building Ecology, Karlsplatz 13, A-1040 Vienna, AustriaAustrian Forest Products Research Society (HFA-ÖGH), Franz-Grill-Straße 7 A-1030 Vienna, AustriaVacuum glazing products have been in development for the past decades. Such glazing products regularly feature two parallel glass panes that have a small, evacuated gap in their interstitial space. To maintain the vacuum and the form of the glass product, regularly vacuum tight edge seals and a grid of distance pillars are integrated. During the years of development, the major focus was set on the production and durability aspects of the glass products, but relatively few efforts had been conducted towards the integration of such glass products into window constructions. Employing typically used double- and triple glazing windows’ frames does not represent a feasible option. This is due to the specification given by vacuum glazing products, such as their small thickness and the requirement for sufficient glass edge coverage due to the major thermal bridge adjacent to the edge seal. The authors, together with major players from the window producing industry, started a R&D effort that targeted disruptive new concepts for vacuum glass windows. Four different designs were developed that not only integrated vacuum glass products, but also featured unusual opening patterns, the latest generation of electrically driven fitting products, and specific seals. The thermal and acoustical performance of the prototypes was improved during the development via employment of numeric thermal simulation and lab testing. The present contribution illustrates the four prototypes and their performance, which – for instance – pertaining to the UW-value is down to 0.6–0.7 W · m−2 · K−1 at a glass thickness of less than 1 cm.https://ojs.cvut.cz/ojs/index.php/APP/article/view/8249vacuum glazingwindowsthermal performancefunctional prototypesnumeric thermal bridge simulation |
| spellingShingle | Ulrich J. Pont Peter Schober Magdalena Wölzl Matthias Schuss Jakob Haberl A review of the FIVA project: Novel windows employing vacuum glazing products Acta Polytechnica CTU Proceedings vacuum glazing windows thermal performance functional prototypes numeric thermal bridge simulation |
| title | A review of the FIVA project: Novel windows employing vacuum glazing products |
| title_full | A review of the FIVA project: Novel windows employing vacuum glazing products |
| title_fullStr | A review of the FIVA project: Novel windows employing vacuum glazing products |
| title_full_unstemmed | A review of the FIVA project: Novel windows employing vacuum glazing products |
| title_short | A review of the FIVA project: Novel windows employing vacuum glazing products |
| title_sort | review of the fiva project novel windows employing vacuum glazing products |
| topic | vacuum glazing windows thermal performance functional prototypes numeric thermal bridge simulation |
| url | https://ojs.cvut.cz/ojs/index.php/APP/article/view/8249 |
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