Journal of Optoelectronical Nanostructures، جلد ۶، شماره ۳، صفحات ۵۹-۸۰

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عنوان انگلیسی Analysis and Implementation of a New Method to Increase the Efficiency of Photovoltaic Cells by Applying a Dual Axis Sun Tracking System and Fresnel Lens Array
چکیده انگلیسی مقاله Nowadays conversion efficiency of photovoltaic (PV)
equipment is considered as an important issue. In this
article, the effects of a semi-Fresnel lens as a convergent
structure will be simulated in COMSOL Multiphysics
software and the results would make improvements in the
characteristic responses of PV cells which are verified
with our experimental results. Besides, because the groove
angles of the semi-Fresnel lens are calculated based on the
orthogonal sun rays, a novel dual-axis sun tracking system
has been designed and constructed for panel orientation
adjustment. So, the sun rays always radiate at the same
efficient angles on PV cells. This issue leads to a reduction
in light concentration area, the total area of the cells and
their costs. Results show a significant improvement in
output power of the PV cells array in comparison to the
previous study by more than 2.5 times. Also, the effective
time of cell performance from sunrise to sunset, extends
longer during a day, regardless of location and time zone.
کلیدواژه‌های انگلیسی مقاله COMSOL Multiphysics, Semi-Fresnel Lens, Solar Cell, Sun Tracking System

نویسندگان مقاله Meraj Rajaee |
Assistant professor, Department of Electrical and Computer Engineering, Technical and Vocational University (TVU), Tehran, Iran

Sahel Rabiee |
PhD Candidate, Department of Energy Engineering and Physics, Amirkabir University of Technology, Tehran, Iran


نشانی اینترنتی http://jopn.miau.ac.ir/article_4981_36f5f8a376d0bee5b0cc4d4ba512ba7c.pdf
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