Conjugate Refractive – Reflective based Building Integrated Photovoltaic system
Baig, H; Chemisana, D; Sundaram, S; et al.Mallick, T
Date: 29 May 2018
Journal
Materials Letters
Publisher
Elsevier
Publisher DOI
Abstract
Building Integrated Concentrating Photovoltaic (BICPV) systems make use of optical elements to
concentrate the incoming solar radiation on small-sized solar cells with the aim of integrating PV
technology into the building. We present a novel conjugate system designed to utilize the merits of
both reflective and refractive optics. ...
Building Integrated Concentrating Photovoltaic (BICPV) systems make use of optical elements to
concentrate the incoming solar radiation on small-sized solar cells with the aim of integrating PV
technology into the building. We present a novel conjugate system designed to utilize the merits of
both reflective and refractive optics. The optical geometry under study is a dielectric based threedimensional
cross compound parabolic concentrator (3DCCPC) enveloped by a reflective geometry
of similar shape whilst maintaining an air gap between them. Monte Carlo ray-trace simulations are
used to model and optimize the system configuration. The theoretical analysis shows that the
optical performance of the system can be improved by 11 % whilst maintaining an air gap of 0.1 mm
between the reflective and the refractive surfaces. Experiments are carried out by making a
prototype of the proposed system to evaluate the proof of concept. A maximum power ratio of 2.76
was found under standard testing conditions at an incidence angle of 10°. Results show that the
average power output from the proposed system increases by 5.46 % compared to its predecessor
Engineering
Faculty of Environment, Science and Economy
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