Dependence of the Light Transmission Coefficients of Multifunctional Glazing on the Angle of Incidence of Radiation

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The operation of buildings with translucent facades increases the load on the heating and ventilation system due to transmission heat losses through the glazing, and on the air conditioning system due to possible overheating in summer. For this reason, glazing with sun protection, low-emissivity and multifunctional coatings is used in such facades. The characteristics of translucent enclosing structurers, as calculated according to normative documents, are taken into account when calculating the load on heating, ventilation and air conditioning systems, as well as when selecting the structures themselves in a given climate in order to save energy. In this case, the characteristics of the glazing were obtained in laboratory conditions when the radiation is perpendicular to the glazing, which is different from field conditions where the sun rays fall on the glazing at an angle. The available research works on the transmittance of solar radiation falling on glazing at an angle is based on laboratory studies, where various physical processes cannot be manifested and accounted for. Currently, research is being conducted in the Research Institute of Building Physics of the Russian Academy of Architecture and Construction Sciences to determine the empirical dependence of the light transmission coefficients of glazing with special coatings on the angle of incidence of the sun rays. The article presents part of the research and considers the determination of the light transmission coefficient of glazing with and without coatings from the angle of incidence of solar radiation.

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作者简介

I. Shubin

Scientific-Research Institute of Building Physics of RAACS

编辑信件的主要联系方式.
Email: shuig@mail.ru

Doctor of Sciences (Engineering), Corresponding Member of RAACS

俄罗斯联邦, 21, Lokomotivniy Driveway, Moscow, 127238

E. Korkina

Scientific-Research Institute of Building Physics of RAACS; National Research Moscow State University of Civil Engineering

Email: elena.v.korkina@gmail.com

Candidate of Sciences (Engineering)

俄罗斯联邦, 21, Lokomotivniy Driveway, Moscow, 127238; 26, Yaroslavskoe Highway, Moscow, 129337

V. Zemtsov

Scientific-Research Institute of Building Physics of RAACS

Email: ins-es@yandex.ru

Engineer

俄罗斯联邦, 21, Lokomotivniy Driveway, Moscow, 127238

S. Kucherov

National Research Moscow State University of Civil Engineering

Email: wysifalay@yandex.ru

Engineer

俄罗斯联邦, 26, Yaroslavskoe Highway, Moscow, 129337

参考

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2. Fig. 1. Experimental dependence of day light transmission coefficient on angle of incidence and approximation curve for glazing: 6 Suncool 66/33-16-4 Optifloat; 6 Suncool 50/27-16-4 Optifloat; 6 Suncool 50/25-16-4 Optifloat

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3. Fig. 2. Experimental dependence of day light transmission coefficient on angle of incidence and approximation curve for glazing: 6 Suncool 70/40-16-4М1; 4 Suncool 70/40-16-4 Optifloat Clear; 6 Suncool 70/40-16-6М1

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4. Fig. 3. Experimental dependence of day light transmission coefficient on angle of incidence and approximation curve for glazing: 4 Suncool 70/40-16-4 Optifloat Clear; 6 Suncool 70/40-16-6И; 4 Suncool 70/40-16-4М1

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5. Fig. 4. Experimental dependence of day light transmission coefficient on angle of incidence and approximation curve for glazing: 4 мм Suncool 70/40; 4 мм Clima Guard Solar; 4 мм Stopray Neo

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6. Fig. 5. Experimental dependence of day light transmission coefficient on angle of incidence and approximation curve for glazing: 4М1-16-6 K-glass; 4М1-16-4 K-glass; 4 Stopray Neo-16-4М1

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7. Fig. 6. Experimental dependence of day light transmission coefficient on angle of incidence and approximation curve for glazing: 8 Planibel Clearvision Rodaj Mat-12 Ar-8 Planibel Clearvision Rodaj Mat; 8 Planibel Clearvision CNC Duz-12 Ar-8 Planibel Clearvision CNC Duz; 4М1

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8. Fig. 7. 3rd degree polynomial approximation and interpolation dependence of the day light transmission coefficient on the angle of incidence for glazing: 6 Suncool 70/40-16-4М1; 4 Suncool 70/40-16-4 Optifloat Clear; 6 Suncool 70/40-16-6М1

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9. Fig. 8. 3rd degree polynomial approximation and interpolation dependence of the day light transmission coefficient on the angle of incidence for glazing: 6 Suncool 70/40-16-4М1; 4 Suncool 70/40-16-4 Optifloat Clear; 6 Suncool 70/40-16-6М1

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