Assessment of the PVC Window Thermal Characteristics in Winter

The paper analyzes the thermal properties of the modern PVC windows in winter. According to the methods of existing regulatory documents, the selection of the PVC windows for several climatic regions (for Moscow, Rostov-on-Don, Novosibirsk) was made. The windows selection was made on the basis of ensuring their normalized heat transfer resistance. To assess the thermal performances of the PVC windows, numerical calculations of two-dimensional temperature fields were performed at different design outdoor temperatures (for the considered cities). The analysis of the humidity of the internal air was carried out to ensure the thermal protection requirements. Additionally, laboratory tests of these window in the cli matic chamber were done were carried out at negative outdoor temperatures (-5; -15; -25; -35; -45°С). Laboratory tests have shown that at negative outside temperatures there is a significant decrease in the thermal characteristics of PVC windows due to the temperature deformation of their profile elements. The identified effects are currently not taken into account in the design.

A.P. KONSTANTINOV, Candidate of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.)
A.A. KRUTOV, Master (This email address is being protected from spambots. You need JavaScript enabled to view it.)
A.M. TIKHOMIROV, Master (This email address is being protected from spambots. You need JavaScript enabled to view it.)

National Research Moscow State University of Civil Engineering (26, Yaroslavskoe Highway, Moscow, 129337, Russian Federation)

1. Boriskina I.V., Shvedov N.V., A. Plotnikov A.A. Sovremennye svetoprozrachnye konstrukcii grazhdanskih zdanij. Spravochnik proektirovshchika. Tom II Okonnye sistemy iz PVH [Modern translucent structures of civil buildings. Handbook of the designer. Volume II PVC Window systems]. Saint Petersburg: NIUPC «Mezhregional’nyj institut okna». 2012. 320 p.
2. Boriskina I.V., Plotnikov A.A., Zaharov A.V. Proektirovanie sovremennyh okonnyh sistem grazhdanskih zdanij. Uchebnoe posobie [Design of modern window systems for civil buildings. Text book]. Saint Petersburg: Vybor. 2008. 360 p.
3. Boriskina I.V., Shchurov A.N., Plotnikov A.A. Okna dlya individual’nogo stroitel’stva [Windows for individual building]. Moscow: Funke Rus. 2013. 320 p.
4. Korkina E.V. Criterion of efficiency of glass units replacing in the building with the purpose of energy saving. Zhilishchnoe Stroitel’stvo [Housing Construction]. 2018. No. 6, pp. 6–9. (In Russian).
5. Savin V.K., Savina N.V. Architecture and energy efficiency of a window. Stroitel’stvo i rekonstrukciya. 2015. No. 4 (60), pp. 124–130. (In Russian).
6. Umnyakova N.P., Butovsky I.N., Verkhovsky A.A., Chebotarev A.G. Requirements to heat protection of external enclosing structures of high-rise buildings. Zhilishchnoe Stroitel’stvo [Housing Construction]. 2016. No. 12, pp. 7–11. (In Russian).
7. Verkhovsky A.A., Zimin A.N., Potapov S.S. The applicability of modern translucent walling for the climatic regions of Russia. Zhilishchnoe Stroitel’stvo [Housing Construction]. 2015. No. 6, pp. 16–19. (In Russian).
8. Kupriyanov V.N., Ivantsov A.I. Analysis of calculating methods for estimation of resistance of light-transparent constructions to heat transfer. Privolzhskij nauchnyj zhurnal. 2018. No. 1 (45), pp. 33–42. (In Russian).
9. Kozlov V.V. Accuracy of calculation of the resistant resistance of heat transfer and temperature fields. Stroitel’stvo i rekonstruktsiya. 2018. Vol. 77. No. 3, pp. 62–74. (In Russian).
10. Konstantinov A.P., Verkhovsky A.A. Influence of negative temperatures on the thermal characteristics of PVC windows. Stroitel’stvo i rekonstruktsiya. 2018. Vol. 83. No. 3. pp. 72–82. (In Russian). DOI: https://doi.org/10.33979/2073-7416-2019-83-3-72-82.
11. Zimin A.N., Bochkov I.V., Kryshov S.I., Umnyakova N.P. Heat transfer resistance and temperature on internal surfaces of translucent enclosing structures of residential buildings of Moscow. Zhilishchnoe Stroitel’stvo [Housing Construction]. 2019. No. 6, pp. 24–29. (In Russian). DOI: https://doi.org/10.31659/0044-4472-2019-6-24-29
12. Kalabin V.A. Assessment of PVC profile thermal deformation. Part 1. Winter transverse deformations. Svetoprozrachnye konstrukcii. 2013. No. 1–2, pp. 6–9. (In Russian).
13. Kalabin V.A. Assessment of PVC profile thermal deformation. Part 2. Summer transverse deformations. Svetoprozrachnye konstrukcii. 2013. No. 3, pp. 12–15. (In Russian).
14. Kalabin V.A. Assessment of PVC profile thermal deformation. Part 3. The intensity of the direct solar radiation. Svetoprozrachnye konstrukcii. 2013. No. 4, pp. 34–38. (In Russian).
15. Eldashov Y.А., Sesyunin S.G., Kovrov V.N. Experimental study of typical window blocks on geometric stability and reduced resistance to heat transfer from the action of thermal loads. Vestnik MGSU. 2009. No. 3, pp. 146–149. (In Russian).
16. Shekhovtsov A.V. Air permeability of an PVC-window when exposed to freezing temperatures. Vestnik MGSU. 2011. No. 3–1, pp. 263–269. (In Russian).
17. Umnyakova N.P., Verkhovsky A.A. Assessment of air permeability of building envelopes. AVOK: Ventilyaciya, otoplenie, kondicionirovanie vozduha, teplosnabzhenie i stroitel’naya teplofizika. 2013. No. 5, pp. 48–53. (In Russian).