A Novel Square Fresnel Lens Design for Illuminating Circular Solar Cells

1978 ◽  
Vol 17 (3) ◽  
Author(s):  
E. L. Burgess ◽  
D. L. Marchi ◽  
Helmut Walter
Keyword(s):  
Solar Cells ◽  
Fresnel Lens ◽  
Lens Design

scholarly journals Optical Performance of Single Point-Focus Fresnel Lens Concentrator System for Multiple Multi-Junction Solar Cells—A Numerical Study

Energies ◽  
2021 ◽  
Vol 14 (14) ◽  
pp. 4301
Author(s):  
Yassir A. Alamri ◽  
Saad Mahmoud ◽  
Raya Al-Dadah ◽  
Shivangi Sharma ◽  
J. N. Roy ◽  
...  
Keyword(s):  
Solar Cells ◽  
Numerical Study ◽  
Single Point ◽  
Optical Element ◽  
Fresnel Lens ◽  
Electrical Performance ◽  
High Concentration ◽  
Three Dimensional Model ◽  
Optical Efficiency ◽  
Concave Lens

This paper investigates the potential of a new integrated solar concentrated photovoltaic (CPV) system that uses a solo point focus Fresnel lens for multiple multi-junction solar cells (MJSCs). The proposed system comprises of an FL concentrator as the primary optical element, a multi-leg homogeniser as the secondary optical element (SOE), a plano-concave lens, and four MJSCs. A three-dimensional model of this system was developed using the ray tracing method to predict the influence of aperture width, height, and position with respect to MJSCs of different reflective and refractive SOE on the overall optical efficiency of the system and the irradiance uniformity achieved on the MJSCs’ surfaces. The results show that the refractive homogeniser using N-BK7 glass can achieve higher optical efficiency (79%) compared to the reflective homogeniser (57.5%). In addition, the peak to average ratio of illumination at MJSCs for the reflective homogeniser ranges from 1.07 to 1.14, while for the refractive homogeniser, it ranges from 1.06 to 1.34, causing minimum effects on the electrical performance of the MJSCs. The novelty of this paper is the development of a high concentration CPV system that integrates multiple MJSCs with a uniform distribution of rays, unlike the conventional CPV systems that utilise a single concentrator onto a single MJSC. The optical efficiency of the CPV system was also examined using both the types of homogeniser (reflective and refractive).

scholarly journals The use of convex lens as primary concentrator for multi-junction solar cells

2018 ◽  
Vol 2 ◽  
pp. 5
Author(s):  
Juan Paolo Lorenzo Gerardo Barrios ◽  
John Raffy Cortez ◽  
Gene Michael Herman ◽  
Aris Larroder ◽  
Bernice Mae Yu Jeco ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Output Power ◽  
Fresnel Lens ◽  
Lens System ◽  
Junction Solar Cell ◽  
Convex Lens

A concentrator lens system was designed for a multi-junction solar cell, CDO-100-C3MJ, with an added feature − a convex lens was added above the Fresnel lens in order to improve the output power of the setup and reduce the need for the use of solar trackers. The convex lens setup was tested with the Fresnel lens setup over a 3-day photoperiod by measuring the voltage, current, irradiance, and temperature at every hour. The results showed that the convex lens setup produced 1.94% more power, but only at around midday. The increase in power is due to the convex lens that focuses a greater amount of irradiance on the solar cell over the course of the day.

scholarly journals Evaluation the Performance of CPV with Different Concentration Ratio

2019 ◽  
Vol 20 (5) ◽  
pp. 23-34
Author(s):  
Alaa H. Shneishil ◽  
Emad J. Mahdi ◽  
Mohammed A. Hantosh
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Output Power ◽  
Solar Irradiance ◽  
Concentration Ratio ◽  
Cooling System ◽  
Low Cost ◽  
Fresnel Lens ◽  
Effect Of Temperature ◽  
Solar Cell Performance

The present work aims at decrease the cost of the photovoltaic (PV) solar system by decreasing the area of expensive solar cells by low cost optical concentrators that give the same output power. Output power of two types’ monocrystalline and polycrystalline silicon solar cells has been measured with and without presence of linear focus Fresnel lenses (FL) with different concentration ratios. Cooling system has been used to decrease the effect of temperature on solar cell performance. The results indicated that the increase in the output power is about 5.3 times by using Fresnel lens concentrator without using cooling system in comparison with solar cell without concentrator, while it is about 14.6 times by using cooling system. The efficiency of monocrystalline solar cell without cooling system is about 11.2% for solar irradiance 0.698 kW/m2, this value decrease to 3.3% for solar irradiance 12.4 kW/m2 and concentration ratio 17.7 by using Fresnel lens concentrator, while when using cooling system the efficiency enhance to 12.9% and 8.8% for solar irradiance 0.698 and 12.4, respectively.

scholarly journals Fresnel lens design for human posture estimation sensing

2020 ◽  
Vol 41 (3) ◽  
pp. 597-602
Author(s):  
HE Yelin ◽  
◽  
◽  
ZHANG Jun
Keyword(s):  
Fresnel Lens ◽  
Lens Design ◽  
Human Posture ◽  
Posture Estimation

scholarly journals High efficiency Fresnel lens design and fabrication in a two-stage photopolymer

2019 ◽  
Vol 44 (7) ◽  
pp. 1540 ◽  
Author(s):  
John E. Hergert ◽  
David J. Glugla ◽  
Amy C. Sullivan ◽  
Marvin D. Alim ◽  
Robert R. McLeod
Keyword(s):  
High Efficiency ◽  
Fresnel Lens ◽  
Lens Design ◽  
Two Stage

The Use of a Fresnel Lens on an Actual Failure

2016 ◽  
Author(s):  
Marc van Veenhuizen ◽  
Harry Kerver ◽  
Lei Peters-Wu ◽  
Sukho Lee ◽  
Frank Zachariasse
Keyword(s):  
Failure Analysis ◽  
Fresnel Lens ◽  
Fault Isolation ◽  
Field Of View ◽  
Design Parameters ◽  
Lens Design ◽  
Root Cause ◽  
Before And After ◽  
Fresnel Lenses ◽  
Silicon Thickness

Abstract We report on the use of Fresnel lenses in the failure analysis (FA) of actual failures. The design parameters affecting the performance of Fresnel lenses in terms of resolution, magnification, and field of view have been analyzed. It is demonstrated that the magnification depends linearly on the change in focus distance caused by the lens, normalized by the silicon thickness. The focus distance shift that can be obtained with the Fresnel lens is observed to saturate, whose root-cause remains to be investigated. The field of view is shown to increase with the silicon thickness and, to a lesser extent, with the number of lens rings. It has also been shown that these lenses are robust against patterning distortions. The OBIRCh responses of actual device failures before and after lens placement have been compared, demonstrating clearly the increase in magnification, resolution, and the ability to focus light which all translate into a better electrical fault isolation. All in all, this study proves the usefulness of Fresnel lenses for FA purposes and offers clear guidelines that will facilitate proper lens design.

Fresnel lens for photovoltaic solar cells

Solar Cells ◽  
1981 ◽  
Vol 3 (2) ◽  
pp. 149-161 ◽  
Author(s):  
F. Demichelis ◽  
E. Minetti-Mezzetti ◽  
G. Ferrari ◽  
M. Palazzetti
Keyword(s):  
Solar Cells ◽  
Fresnel Lens ◽  
Photovoltaic Solar Cells
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