scholarly journals Ideal shape of Fresnel lens for visible solar light concentration

2020 ◽  
Vol 28 (12) ◽  
pp. 18141
Author(s):  
Xinglong Ma ◽  
Rihui Jin ◽  
Shen Liang ◽  
Hongfei Zheng
Keyword(s):  
Fresnel Lens ◽  
Solar Light ◽  
Light Concentration

Photoelectrochemical experiments under various solar light concentration ratios

1999 ◽  
Vol 09 (PR3) ◽  
pp. Pr3-301-Pr3-306
Author(s):  
O. Enea ◽  
J. Blanco ◽  
S. Malato ◽  
M. I. Maldonado
Keyword(s):  
Solar Light ◽  
Light Concentration ◽  
Concentration Ratios

Light-Concentration Characteristic of Water Lens and its Application to Thermoelectric Generation

2014 ◽  
Vol 617 ◽  
pp. 247-250
Author(s):  
Keita Ito ◽  
Hong Tao Sui ◽  
Hidetoshi Hakozaki ◽  
Hiroshi Kinoshita ◽  
Ryosuke O. Suzuki
Keyword(s):  
Power Generation ◽  
Energy Distribution ◽  
Large Energy ◽  
Solar Light ◽  
Thermoelectric Generation ◽  
Solar Altitude ◽  
Light Concentration ◽  
Simulation Results ◽  
Concentration Characteristic

A water lens was used to concentrate sunlight on the surface of a thermoelectric (TE) module in order to heat it. The shape of this water lens could be flexibly adjusted to compensate for solar altitude changes. The light condensed by the water lens produced a large energy distribution on the top of the module. In this study, we simulated the power generation properties when the top of the module was heated by light with a certain condensing distribution. The simulation results revealed that the energy distribution had little effect on the TE generation if the solar light was effectively condensed on a plate with a condensing width of a few millimeters.

Boosting CO2 photoreduction activity by large Fresnel lens concentrated solar light

2019 ◽  
Vol 125 ◽  
pp. 48-51 ◽  
Author(s):  
Xiaoxiang Fang ◽  
Zhihong Gao ◽  
Hanfeng Lu ◽  
Zekai Zhang
Keyword(s):  
Fresnel Lens ◽  
Solar Light ◽  
Co2 Photoreduction

Concentrated solar light for rapid crystallization of nanomaterials and extreme enhancement of photoelectrochemical performance

2018 ◽  
Vol 54 (19) ◽  
pp. 2373-2376 ◽  
Author(s):  
Yina Zhao ◽  
Beilei Qiu ◽  
Zhonghai Zhang
Keyword(s):  
Solar Energy ◽  
Energy Input ◽  
Fresnel Lens ◽  
Solar Light ◽  
Photoelectrochemical Performance ◽  
Rapid Crystallization

A concentrated solar light annealing strategy is proposed with a Fresnel lens as the concentrator for rapid and effective crystallization of nanomaterials, and all energy input comes from renewable solar energy as the source.

Solar Pumped Nd:YAG Laser by the Fresnel Lens

2013 ◽  
Vol 552 ◽  
pp. 345-348
Author(s):  
Dan Fang ◽  
Fei Wang ◽  
Xiao Hua Wang ◽  
Si Ning Liu
Keyword(s):  
Concentration Ratio ◽  
Fresnel Lens ◽  
Direct Conversion ◽  
Energy Utilization ◽  
Solar Light ◽  
Laser Output Power ◽  
Solar Energy Utilization ◽  
Side Pumping ◽  
Incoming Energy ◽  
Nd:Yag Crystal

Shortly after the invention of the laser, researchers began to dream of converting sunlight into laser radiation directly. A direct conversion of concentrated solar light into a coherent laser beam improved the conversion efficiency because of the simple design of the structure, which is an innovation in the new field of solar energy utilization. We utilize the Fresnel lens of 1m2 to collect solar light, which is coupled into the conical chamber pumping Nd:YAG crystal, in 5mm-diameter 80mm-length rod. The pumping cavity is designed to combine end-pumping with side-pumping, in which the pumping light comes from many directions. It could compensate the drawbacks of single end-pumping or side-pumping. In the experiment, we obtain the maximum laser output power of 2.5 W, with a slope efficiency achieving 1.3%. By the Tracepro ray-tracing software, simulating the incoming energy distribution in the focus of the Fresnel lens, the concentration ratio of 104 is achieved.

Dual-sensitized upconversion-assisted, triple-band absorbing luminescent solar concentrators

Nanoscale ◽  
2020 ◽  
Vol 12 (33) ◽  
pp. 17265-17271
Author(s):  
Seong Kyung Nam ◽  
Kiwon Kim ◽  
Ji-Hwan Kang ◽  
Jun Hyuk Moon
Keyword(s):  
Solar Light ◽  
Photovoltaic Systems ◽  
Solar Concentrator ◽  
Solar Concentrators ◽  
Luminescent Solar Concentrators ◽  
Luminescent Solar Concentrator ◽  
Triple Band

Luminescent solar concentrator-photovoltaic systems (LSC-PV) harvest solar light by using transparent photoluminescent plates, which is expected to be particularly useful for building-integrated PV applications.

Far-Infrared Fresnel Lens for Thermal Imaging

2013 ◽  
Vol 133 (7) ◽  
pp. 274-279
Author(s):  
Tomoyuki Takahata ◽  
Kiyoshi Matsumoto ◽  
Isao Shimoyama
Keyword(s):  
Thermal Imaging ◽  
Far Infrared ◽  
Fresnel Lens

Photocatalytic Discolouration of Solutions of Reactive Dyes in the Presence of H2O2

1995 ◽  
Vol 30 (1) ◽  
pp. 53-60 ◽  
Author(s):  
Deng Nansheng ◽  
Tian Shizhong ◽  
Xia Mei
Keyword(s):  
Photochemical Reaction ◽  
Uv Light ◽  
Reactive Dyes ◽  
Solar Light ◽  
Rate Equations ◽  
Oh Radical ◽  
Test Results ◽  
Dye Molecules ◽  
First Order ◽  
Dye Solutions

Abstract Tests for the photocatalytic degradation of solutions of three reactive dyes, Red M-5B, Procion Blue MX-R and Procion Black H-N, in the presence of H2O2 were carried out. When the solutions of the three reactive dyes were irradiated by UV or solar light, the colour of the solutions disappeared gradually. A statistical analysis of the test results indicated a linear relation between the concentration of dyes and the time of irradiation. The discolouration reaction of the solutions was of the first order. Rate equations for the discolouration reactions of dye solutions were developed. The dark reactions or the dye solutions containing H2O2 were very slow, illustrating that the photochemical reaction played a very important role. It was demonstrated that UV light and solar light (300 to 380 nm) photolyzes the HO and that the resulting OH radical reacts with the dye molecules and destroys the chromophore.

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