What is the transmittance of a single clear 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).

How much UV rays can a laminated glass absorb?

Laminated glasses can transmit only0.4 % of UV, compared to 44 % for 10mm clear float glass. A second option is to use a body-tinted glass, which will filter light selectively : for example, yellow glass absorbs mainly violet and blue light. Thirdly, glass with a low solar factor could be used to reduce the thermal effect of the radiation.

What is the SHGC of a glass window?

The window has a SHGC of 0.86, which equals the solar transmittance (83%) of the glass plus the glass absorbed heat that is re-radiated to the indoor space (3%). The transmittance of a single clear glass in the visible range (380–780 nm) is approximately 90%, as illustrated in Fig. 1 (b).

What is a TT glazing unit?

Zhou et al. (2014) fabricated a TT glazing unit consisting of a micrometre thick PNIPAm hydrogel film (LCST = 32 °C) laminated between two pieces of glass, and measured its optical performance with respect to different film thicknesses (26, 52 and 78 μm).

What is a thermotropic hydrogel laminated between two glass panes?

The thermotropic hydrogel laminated between two glass panes was synthesised of HPC, water, sodium chloride and an amphipathic compound, the last of which acts as a spacer to avoid the irreversible sedimentation of HPC aggregates during phase separation.

Can CdTe glazing reduce energy consumption?

Taking the case of an office building with a WWR of 75% in Beijing’s climate as an example, the result shows that replacing 80% of the clear-glass window area by the CdTe glazing can achieve a 67.9% reduction in annual total energy consumption.