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Efficiency of fresnel lenses with respect to thermal losses

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  • Gupta, Pramod Kumar

Abstract

Experimental observations and heat loss calculations for a Fresnel lens under forced and natural convection have both been obtained. A lens with a 2·0 mm step width and 325·99 cm2 area when exposed to solar radiation and kept normal to solar radiation with an intensity of 43·116 cal/cm2/h has given a steady-state temperature of 187·5°C at its focus.

Suggested Citation

  • Gupta, Pramod Kumar, 1982. "Efficiency of fresnel lenses with respect to thermal losses," Applied Energy, Elsevier, vol. 12(2), pages 87-98, October.
    • Handle: RePEc:eee:appene:v:12:y:1982:i:2:p:87-98
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    Cited by:

    1. Kandil, A.A. & Awad, Mohamed M. & Sultan, Gamal I. & Salem, Mohamed S., 2022. "Investigating the performance characteristics of low concentrated photovoltaic systems utilizing a beam splitting device under variable cutoff wavelengths," Renewable Energy, Elsevier, vol. 196(C), pages 375-389.

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