Özet:

In this research, a unique PV glazing technology, thermally resistive PV glazing (TRPVG), is introduced, and its thermal, optical and acoustic performance parameters are experimentally investigated. In the previous works, multifunctional benefits of TRPVG as a novel building element such as high thermal resistance, promising electricity generation potential, self-cleaning and competitive cost are addressed. Within the scope of the present research, absorption of UVC and UVA part of incoming sunlight, control of visible light transmittance and solar thermal radiation, reduction of different noise levels, and temperature difference across the PV glazing are comprehensively analysed. The tests are conducted in April 2019 for a specific sample (TRPVG-Ar16) in which a 16 mm thick argon is utilised as inert gas behind a-Si PV cells for thermal resistance, and a novel low-e coated thermally resistive glass is reinforced at the rear. The results reveal that TRPVG-Ar16 is a very good thermal insulator at first glance. The average temperature difference between front and back surfaces is determined to be 16.59 oC, which is promising and a strong function of incoming solar radiation. The average solar radiation is measured to be 527.6 W/m2 during the test period, and the aforesaid value behind the PV glazing is found to be 41.6 W/m2. A similar tendency is observed for the visible light transmittance. Average light intensity measurements from the front and back of TRPVG-Ar16 are reported to be 622.3 and 75.4 Lux, respectively. UVC and UVA measurements reveal that the novel TRPVG-Ar16 technology is capable of blocking 100% of UV part of incoming sunlight, which needs to be noted. The tests carried out for various noise levels also demonstrate that TRPVG-Ar16 is a promising noise absorber. Outside the simulation environment, the noise level is measured to be 84.3 dBA while it is 56.5 dBA for the indoor, which corresponds to about 33% reduction in dBA value.

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