Experimental and numerical investigation of thermal improvement of window frames
2021
Preuzimanje 🢃
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
This article presents experimental and numerical determinations of thermal transmittance performed on three different types of window frames (vinyl, aluminium, and wooden) within the same insulated glass unit. Good agreement between experimental and numerical results was attained. Using the numerical models, thermal improvement techniques of the frames and their influence on thermal transmittance of frames were studied. The first thermal improvement technique was using the insulation materials inserted inside large air cavities. By filling the cavity of vinyl frame with the polyurethane foam, thermal transmittance of vinyl frame was lowered by 10%. The second technique was based on repeating the procedure with materials installed inside frames with the materials that have lower thermal conductivity. This technique can be applied on thermal breaks and on steel profiles inside cavities. The result of this thermal improvement (attained by replacing thermal break material with material tha...t has lower thermal conductivity) was certain reduction of the thermal transmittance of frames, by 9%. Using stainless steel instead of the oxidized steel was reduction of the thermal transmittance of vinyl frame by 3%. For the case of wooden frames the influence of shifting glazing unit deeper into profile upon the thermal transmittance of the frame was analyzed. Installing the glass unit by 5 mm deeper into the wooden frame reduced glass thermal transmittance by 5%.
Ključne reči:
window frame / thermal transmittance / thermal improvements / numerical simulations / experimental analysisIzvor:
Thermal Science, 2021, 25, 4, 2579-2588Izdavač:
- Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd
DOI: 10.2298/TSCI200120189G
ISSN: 0354-9836
WoS: 000680669700014
Scopus: 2-s2.0-85111551280
Kolekcije
Institucija/grupa
Mašinski fakultetTY - JOUR AU - Gojak, Milan AU - Kijanović, Aleksandar I. AU - Rudonja, Nedžad AU - Todorović, Ružica PY - 2021 UR - https://machinery.mas.bg.ac.rs/handle/123456789/3610 AB - This article presents experimental and numerical determinations of thermal transmittance performed on three different types of window frames (vinyl, aluminium, and wooden) within the same insulated glass unit. Good agreement between experimental and numerical results was attained. Using the numerical models, thermal improvement techniques of the frames and their influence on thermal transmittance of frames were studied. The first thermal improvement technique was using the insulation materials inserted inside large air cavities. By filling the cavity of vinyl frame with the polyurethane foam, thermal transmittance of vinyl frame was lowered by 10%. The second technique was based on repeating the procedure with materials installed inside frames with the materials that have lower thermal conductivity. This technique can be applied on thermal breaks and on steel profiles inside cavities. The result of this thermal improvement (attained by replacing thermal break material with material that has lower thermal conductivity) was certain reduction of the thermal transmittance of frames, by 9%. Using stainless steel instead of the oxidized steel was reduction of the thermal transmittance of vinyl frame by 3%. For the case of wooden frames the influence of shifting glazing unit deeper into profile upon the thermal transmittance of the frame was analyzed. Installing the glass unit by 5 mm deeper into the wooden frame reduced glass thermal transmittance by 5%. PB - Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd T2 - Thermal Science T1 - Experimental and numerical investigation of thermal improvement of window frames EP - 2588 IS - 4 SP - 2579 VL - 25 DO - 10.2298/TSCI200120189G ER -
@article{ author = "Gojak, Milan and Kijanović, Aleksandar I. and Rudonja, Nedžad and Todorović, Ružica", year = "2021", abstract = "This article presents experimental and numerical determinations of thermal transmittance performed on three different types of window frames (vinyl, aluminium, and wooden) within the same insulated glass unit. Good agreement between experimental and numerical results was attained. Using the numerical models, thermal improvement techniques of the frames and their influence on thermal transmittance of frames were studied. The first thermal improvement technique was using the insulation materials inserted inside large air cavities. By filling the cavity of vinyl frame with the polyurethane foam, thermal transmittance of vinyl frame was lowered by 10%. The second technique was based on repeating the procedure with materials installed inside frames with the materials that have lower thermal conductivity. This technique can be applied on thermal breaks and on steel profiles inside cavities. The result of this thermal improvement (attained by replacing thermal break material with material that has lower thermal conductivity) was certain reduction of the thermal transmittance of frames, by 9%. Using stainless steel instead of the oxidized steel was reduction of the thermal transmittance of vinyl frame by 3%. For the case of wooden frames the influence of shifting glazing unit deeper into profile upon the thermal transmittance of the frame was analyzed. Installing the glass unit by 5 mm deeper into the wooden frame reduced glass thermal transmittance by 5%.", publisher = "Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd", journal = "Thermal Science", title = "Experimental and numerical investigation of thermal improvement of window frames", pages = "2588-2579", number = "4", volume = "25", doi = "10.2298/TSCI200120189G" }
Gojak, M., Kijanović, A. I., Rudonja, N.,& Todorović, R.. (2021). Experimental and numerical investigation of thermal improvement of window frames. in Thermal Science Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd., 25(4), 2579-2588. https://doi.org/10.2298/TSCI200120189G
Gojak M, Kijanović AI, Rudonja N, Todorović R. Experimental and numerical investigation of thermal improvement of window frames. in Thermal Science. 2021;25(4):2579-2588. doi:10.2298/TSCI200120189G .
Gojak, Milan, Kijanović, Aleksandar I., Rudonja, Nedžad, Todorović, Ružica, "Experimental and numerical investigation of thermal improvement of window frames" in Thermal Science, 25, no. 4 (2021):2579-2588, https://doi.org/10.2298/TSCI200120189G . .