High-flux solar concentration with imaging designs

    Research output: Contribution to journalArticlepeer-review

    30 Scopus citations


    Most large solar concentrators designed for high flux concentration at high collection efficiency are based on imaging primary mirrors and nonimaging secondary concentrators. In this paper, we offer an alternative purely imaging two-stage solar concentrator that can attain high flux concentration at high collection efficiency. Possible practical virtues include: (1) an inherent large gap between absorber and secondary mirror; (2) a restricted angular range on the absorber; and (3) an upward-facing receiver where collected energy can be extracted via the (shaded) apex of the parabola. We use efficiency-concentration plots to characterize the solar concentrators considered, and to evaluate the potential improvements with secondary concentrators.

    Original languageEnglish
    Pages (from-to)83-89
    Number of pages7
    JournalSolar Energy
    Issue number2
    StatePublished - 1 Feb 1999

    ASJC Scopus subject areas

    • Renewable Energy, Sustainability and the Environment
    • General Materials Science


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