Software simulation and experimental characterisation of a rotationally asymmetrical concentrator under direct and diffuse solar radiation

Daria Freier, Firdaus Muhammad-Sukki, Siti Hawa Binti Abu Bakar, Roberto Ramirez-Iniguez, Abdullahi Abubakar Mas'ud, Ricardo Albarracín, Jorge Alfredo Ardila-Rey, Abu Munir, Siti Yasin, Nurul Aini Bani

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    Abstract

    Making housing carbon neutral is one of the European Union (EU) targets with the aim to reduce energy consumption and to increase on-site renewable energy generation in the domestic sector. Optical concentrators have a strong potential to minimise the cost of building integrated photovoltaic (BIPV) systems by replacing expensive photovoltaic (PV) material whilst maintaining the same electrical output. In this work, the performance of a recently patented optical concentrator known as the rotationally asymmetrical dielectric totally internally reflective concentrator (RADTIRC) was analysed under direct and diffuse light
    conditions. The RADTIRC has a geometrical concentration gain of 4.969 and two half acceptance angles of ±40 and ±30 respectively along the two axes. Simulation and experimental work has been carried out to determine the optical concentration gain and the angular response of the concentrator. It was
    found that the RADTIRC has an optical concentration gain of 4.66 under direct irradiance and 1.94 under diffuse irradiance. The experimental results for the single concentrator showed a reduction in concentration gain of 4.2% when compared with simulation data.
    Original languageEnglish
    Pages (from-to)223-238
    Number of pages16
    JournalEnergy Conversion and Management
    Volume122
    Early online date1 Jun 2016
    DOIs
    Publication statusPublished - Aug 2016

    Keywords

    • photovoltaic optical concentrator
    • asymmetrical concentrator

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    Freier, D., Muhammad-Sukki, F., Abu Bakar, S. H. B., Ramirez-Iniguez, R., Mas'ud, A. A., Albarracín, R., Ardila-Rey, J. A., Munir, A., Yasin, S., & Bani, N. A. (2016). Software simulation and experimental characterisation of a rotationally asymmetrical concentrator under direct and diffuse solar radiation. Energy Conversion and Management, 122, 223-238. https://doi.org/10.1016/j.enconman.2016.05.072