Firstly, the transmittance of the full solar spectrum by commonly used glass materials in buildings was investigated, and the transmittance characteristics of five glass materials to the solar spectrum by different wavelengths were discussed, and then the transmittance model are established.
Examples of Film Measurements The spectral transmittance is obtained by measuring the transmittance of 3 mm-thick glass with film attached to one face. For these tests, we determined the visible light transmittance, UV transmittance, solar transmittance, solar reflectance, and shading coefficients for four types of film adhered to glass.
The transmittance of a single clear glass in the visible range (380–780 nm) is approximately 90%, as illustrated in Fig. 1 (b). Traditional windows with both high SHGC and visible light transmittance (τvis) are often the reasons for overheating and glare issues (Tällberg et al., 2019).
Therefore, in addition to the transmittance models for different wavebands, the transmittance of visible light and the complete solar spectrum at an inclination angle of 0° are provided in percentage form for use (Table 6). Table 6. Spectral transmittance of different glass materials. Table 7.
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Spectral transmittance of different structured glasses, together with flat glass and a commercial PV glass with AR coating.
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The spectral transmittance is obtained by measuring the transmittance of 3 mm-thick glass with film attached to one face. For these tests, we determined the visible light …
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