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.

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

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.

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.

Hydrodesulphurization of thiophene over zirconia and alumina supported Co-Mo catalysts

1989 ◽  
Vol 54 (8) ◽  
pp. 2064-2068 ◽  
Author(s):  
Jiří Sedláček ◽  
Zdeněk Vít
Keyword(s):  
Total Pressure ◽  
Supported Catalysts ◽  
Atomic Concentration ◽  
Commercial Sample ◽  
Sulphur Oxidation ◽  
Como Catalysts ◽  
Zirconia Support ◽  
Como Catalyst ◽  
Concentration Ratios

The zirconia supported CoMo catalysts and the commercial sample CoMo/Al2O3 were characterized by XPS measurements and by testing of activity in the HDS of thiophene at 280 °C and 1 MPa of total pressure. The XPS measurements revealed the better reducibility of molybdenum, higher sulphidability of cobalt and the absence of surface sulphur oxidation in the presence of zirconia support. The surface atomic concentration ratios S/Mo were 1.2 and 2.2 for zirconia and alumina supported catalysts, respectively. The activity of the zirconia supported CoMo catalyst normalized to the overal amounts of active metals was lower than that of the commercial CoMo/Al2O3 catalyst.

scholarly journals Contamination from Possible Solar Light Exposures in ESR Dosimetry Using Human Tooth Enamel.

1998 ◽  
Vol 39 (3) ◽  
pp. 185-191 ◽  
Author(s):  
NORI NAKAMURA ◽  
JANINE F. KATANIC ◽  
CHYUZO MIYAZAWA
Keyword(s):  
Tooth Enamel ◽  
Solar Light ◽  
Human Tooth ◽  
Human Tooth Enamel

Solar-light responsive efficient H2 evolution using a novel ternary hierarchical SrTiO3/CdS/carbon nanospheres photocatalytic system

2021 ◽  
Author(s):  
Saikumar Manchala ◽  
Ambedkar Gandamalla ◽  
Vempuluru Navakoteswara Rao ◽  
Shankar Muthukonda Venkatakrishnan ◽  
Vishnu Shanker
Keyword(s):  
Solar Light ◽  
H2 Evolution ◽  
Carbon Nanospheres ◽  
Photocatalytic System
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