Fresnel lens solar collector development considering local conditions

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2022-9

Author

Değirmenci, Deniz

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In this thesis, the development of Fresnel lens solar collectors is investigated considering local conditions. The Fresnel lens solar collector focuses the sun's rays on a receiver located at the focal line using the principle of refraction. This collector system can reach relatively high temperatures that can be used in industrial processes. To analyze the lens, a ray tracing code and an auxiliary lens design code has been developed that work with a wavelength-dependent spectrum and takes the refraction, reflection, absorption, and extinction coefficients of transparent materials into account. For obtaining the efficiency of the designed collector, the heat loss from the system, and the time-dependent variation of the operating temperatures reached during the day, a thermal model of the collector receiver and an annual performance model, which uses the actual TMY data, were developed. Combining these two models, operating temperature values obtained during the day and collector performance data are obtained and presented.

Subject Keywords

Fresnel lens solar collector, Solar heat for industrial processes, Ray tracing, Heat flux distribution

URI

https://hdl.handle.net/11511/99479

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Graduate School of Natural and Applied Sciences, Thesis

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Citation Formats

D. Değirmenci, “Fresnel lens solar collector development considering local conditions,” M.S. - Master of Science, Middle East Technical University, 2022.