Effect of diffuse radiation on the performance of a rotationally asymmetrical optical concentrator

Daria Freier, Firdaus Muhammad-Sukki, Siti Hawa Binti Abu Bakar, Roberto Ramirez-Iniguez, Abu Bakar Munir, Siti Hajar Mohd Yasin, Abdullahi Abubakar Mas'ud, Nurul Aini Bani

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

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    Abstract

    This paper evaluates the performance of a recently patented rotationally asymmetrical dielectric totally internally reflective concentrator (RADTIRC) under diffuse radiation. The RADTIRC has a geometrical concentration gain of 4.969 and two half acceptance angles of ± 30° and ± 40° along the x-axis and z-axis respectively. Simulation and experimental work have been carried out to determine the optical concentration gain under diffuse radiation. It was found that the RADTIRC has an optical concentration gain of 1.94 under diffuse irradiance. The experimental results for the single concentrator showed an optoelectronic gain of 2.13, giving a difference of 9.8% due to factors such as the presence of direct radiation during experiments, the increase in diffuse radiation due to the reflection from surrounded buildings as well as from the ground reflection.
    Original languageEnglish
    Title of host publicationIEEE 6th International Conference on Photonics (ICP)
    PublisherIEEE
    Pages71-73
    Number of pages3
    ISBN (Electronic)9781467381536
    ISBN (Print)9781467381543
    DOIs
    Publication statusPublished - Aug 2016

    Keywords

    • solar photovoltaic
    • building integrated photovoltaic systems
    • opto-electronic gain
    • rotationally asymmetrical dielectric totally internally reflecting concentrator

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