What does the Y value of solar glass transmittance mean

4 FAQs about [What does the Y value of solar glass transmittance mean ]

What is the difference between solar energy transmittance and solar energy reflectance?

Solar energy transmittance: the fraction of solar energy transmitted through a glass. Solar energy reflectance, front: the fraction of solar energy reflected by the front side of a glass. Solar energy reflectance, back: the fraction of solar energy reflected by the back side of a glass.

What are the factors affecting the choice of glass?

The main values in the choice of glass are thermal transmittance, light transmittance, and the solar factor. The solar factor g is the ratio between the solar energy that manages to pass through the glass entering the environment and the total solar energy that strikes the outer surface of the glazing.

What is the difference between spectral reflectance and UV transmittance?

Spectral reflectance, front: the fraction of radiation of a specific wavelength reflected by the front side of a glass. Spectral reflectance, back: the fraction of radiation of a specific wavelength reflected by the front side of a glass. UV transmittance: the fraction of ultraviolet (UV) radiation transmitted through a glass.

What is solar energy direct transmittance (Te)?

Solar Energy Direct Transmittance (Te, %) is the percentage of incident solar energy in the wavelength range of 300 nm to 2500 nm that is directly transmitted by the glass. Solar Direct Reflectance Outdoors/Indoors (Re out/in, %) is the percentage of incident solar energy directly reflected by the glass.

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