Field studies of solar radiation transmission by glazing with multifunctional coatings

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Abstract

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.

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About the authors

I. L. Shubin

Scientific-Research Institute of Building Physics of RAACS

Author for correspondence.
Email: shuig@mail.ru

Doctor of Sciences (Engineering), Corresponding member of RAACS

Russian Federation, 21, Lokomotivniy Driveway, Moscow, 127238

E. V. 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)

Russian Federation, 21, Lokomotivniy Driveway, Moscow, 127238; 26, Yaroslavskoe Highway, Moscow, 129337

I. A. Shmarov

Scientific-Research Institute of Building Physics of RAACS

Email: shmarovigor@yandex.ru

Candidate of Sciences (Engineering)

Russian Federation, 21, Lokomotivniy Driveway, Moscow, 127238

S. S. Kucherov

National Research Moscow State University of Civil Engineering

Email: wysifalay@yandex.ru

Engineer

Russian Federation, 26, Yaroslavskoe Highway, Moscow, 129337

References

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2. Fig. 1. Photovoltaic installation with test glass panes and luxmeters: 1 – Post and lintel; 2 – Glazing rails; 3 – Glazed units; 4 – Data processing unit; 5 – Luxmeters. Front view (a), side view (b)

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3. Fig. 2. Vertical day lighting, klx, at south (a), east and west orientation of glazed units (b): 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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4. Fig. 3. Vertical day lighting, klx, at south (a), east and west (b) orientation of glazed units: 6 Suncool 70/40-16-4 М1; 4 Suncool 70/40-16-4Optifloat Clear; 6 Suncool 70/40-16-6М1

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5. Fig. 4. Vertical day lighting, klx, at south (a), east and west (b) orientation of glazed units: 4 Suncool 70/40-16-4Optifloat Clear; 6 Suncool 70/40-16-6И; 4 Suncool 70/40-16-4М1

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6. Fig. 5. Vertical day lighting, klx, at south (a), east and west (b) orientation of glazed units: 4 mm Suncool 70/40; 4 mm Clima Guard Solar; 4 mm Stopray Neo

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7. Fig. 6. Vertical day lighting, klx, at south (a), east and west (b) orientation of glazed units: 4М1-16-6 K-glass; 4М1-16-4 K-glass; 4 Stopray Neo-16-4М1

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8. Fig. 7. Vertical day lighting, klx, at south (a), east and west (b) orientation of glazed units: 8 мм Planibel Clearvision Rodaj Mat – 12 мм Ar – 8 mm Planibel Clear-vision Rodaj Mat; 8 мм Planibel Clearvision CNC Duz – 12 мм Ar – 8 мм Planibel Clearvision CNC Duz, 4М1

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