Comprehensive analysis of electrical-optical performance and application potential for 3D concentrating photovoltaic window

Zhang, Wei; Li, Jianhui; Xie, Lingzhi; Hao, Xia; Mallick, Tapas K.; Wu, Yupeng; Shanks, Katie; Sun, Yanyi; Yan, Xiaoyu; Tian, Huixin; Li, Zihao

doi:10.1016/j.renene.2022.02.121

Cited by 12 publications

(1 citation statement)

References 19 publications

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“…The study in [19] proposes a new type of window, known as an asymmetric concentrator-PV window, which can achieve an optical efficiency above 80% over a broad acceptance range of 10 • -85 • . In addition, [20] report a novel kind of photovoltaic glazing called 3D concentrating photovoltaic, which has been shown to increase the maximum power output by 2.89 times in tests. Another example is the Building Integrated Concentrating Photovoltaic (BICPV) smart window described in [21].…”

Section: Introductionmentioning

confidence: 99%

Experimental Characterization of the Optical Performance of Concentrating Photovoltaic Glazing (CoPVG) Systems

Ghoraishi¹,

Hyde²,

Zacharopoulos³

et al. 2023

Energies

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An experiment was conducted to test the optical efficiency of the lenses of the Concentrating Photovoltaic Glazing (CoPVG) concept. The CoPVG is a seasonal glazing system consisting of longitudinal prismatic lenses. The lenses concentrate sunlight onto the focus where Photovoltaic (PV) cells are bonded, generating electricity while simultaneously preventing excessive glare indoors during summer. The system transmits sunlight for daylight purposes in winter. The experimental results were compared with an analytical model developed at Ulster University. Although there were discrepancies between the model and the experimental results, the model can still predict the optical performance of the lenses reliably, and can therefore still provide an overview of the concept’s optical performance. The model was then used to create a visual representation of the glazing’s annual optical performance, demonstrating how the glazing responds to changes in the sun’s position in the sky throughout the year. This analysis allows for balancing the need for natural lighting and energy generation, and so enables designers to evaluate annual optical performance of the CoPVG lens quickly and accurately. A case study of a building in Belfast is presented to demonstrate the application of the model. As an example, the results indicate that utilizing the lenses in glazing towards the south leads to a shift in its performance from room lighting to shading on 1st April, and vice versa on 15 September. The analyses also show that utilizing the CoPVG lenses can potentially enhance the electrical output power of the glazing ranging between 5% and 8% and from 46% up to 52% during winter and summer, respectively, compared with traditional Semi-Transparent Photovoltaic (STPV) glazing with the same opaque area percentage.

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Section: Introductionmentioning

confidence: 99%