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  • 1.  Nonimaging Compound Parabolic Concentrator (CPC) reflector shapes

    Posted 13 days ago
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    Nonimaging Compound Parabolic Concentrator (CPC) reflector shapes include: a) ordinary; and b) involute (rounded W). Both have trough and asymmetric (dashed lines) options. Both CPC shapes are being studied as large-size building-integration elements for solar cooking and process heat applications mainly for tropical locations without dust storms.  



  • 2.  RE: Nonimaging Compound Parabolic Concentrator (CPC) reflector shapes

    Silver
    Contributor
    Posted 13 days ago
    Edited by william fitch 13 days ago

    This is a picture of GE's Solaratron TC-100 evac tube collector with a cusp shape reflector. It debuted back in the 80's..

    First evac collector in the USA

    The easiest way to improve evacs is to just put a foil faced bubble wrap behind them. Any light that "misses" the tubes bounces back on to the back side of the tubes. But if ground mounted, it does increase wind loading if your mounting surface is not solid to begin with....



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