Field Studies of Solar Radiation Transmission by Glazing with Multifunctional Coatings

In order to reduce energy consumption for heating, ventilation and air conditioning, multi-functional and sun-protective glazing is installed in translucent faсades. In this case, the coefficient of transmittance of visible light and solar radiation is used in calculations of the coefficient of natural illumination of building premises and incoming solar radiation. These coefficients are determined at normal incidence of solar radiation on the glazing, according to normative documents. However, in real conditions, the angle of incidence is different from the normal angle of incidence. National and foreign research works on this issue have been carried out in laboratory conditions, while in fieldwork the effects related to the physical processes of interaction of radiation with sun-protective coatings may appear. At present, research is being carried out in NIISF RAASN to determine the empirical dependence of transmittance coefficients of glazing with special coatings on the angle of incidence of sunlight. This paper is part of this research and deals with the determination under in-situ conditions of the transmittance of solar radiation in the visible range by glazing with multifunctional and sun-protective coatings as a function of its orientation on the sides of light.

I.L. SHUBIN¹, Doctor of Sciences (Engineering), Corresponding member of RAACS (This email address is being protected from spambots. You need JavaScript enabled to view it.);
E.V. KORKINA^1,2, Candidate of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.);
I.A. SHMAROV¹, Candidate of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.);
S.S. KUCHEROV², Engineer (This email address is being protected from spambots. You need JavaScript enabled to view it.)

¹ Scientific-Research Institute of Building Physics of RAACS (21, Lokomotivniy Driveway, Moscow, 127238, Russian Federation)
² National Research Moscow State University of Civil Engineering (26, Yaroslavskoe Highway, Moscow, 129337, Russian Federation)

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