Photocatalytic reduction of Cr(VI) in aqueous titania suspensions exposed to concentrated solar radiation

2007 ◽  
Vol 26 (4) ◽  
pp. 195-207 ◽  
Author(s):  
Kavita Kabra ◽  
R. Chaudhary ◽  
R. L. Sawhney
Keyword(s):  
Solar Radiation ◽  
Photocatalytic Reduction ◽  
Concentrated Solar Radiation

scholarly journals Solar thermochemical splitting of CO2 into separate streams of CO and O2 with high selectivity, stability, conversion, and efficiency

2017 ◽  
Vol 10 (5) ◽  
pp. 1142-1149 ◽  
Author(s):  
Daniel Marxer ◽  
Philipp Furler ◽  
Michael Takacs ◽  
Aldo Steinfeld
Keyword(s):  
Solar Radiation ◽  
High Selectivity ◽  
Redox Cycle ◽  
Solar Reactor ◽  
Reactor Technology ◽  
Concentrated Solar Radiation ◽  
Solar Thermochemical

Solar reactor technology for splitting CO2via a 2-step thermochemical redox cycle using concentrated solar radiation.

scholarly journals Minimizing the Cosine Loss in a Solar Tower Power Plant by a Change in the Heliostat Position and Number

2020 ◽  
Vol 9 (3) ◽  
pp. 2302-2304
Keyword(s):  
Solar Radiation ◽  
Tracking System ◽  
Working Fluid ◽  
The Sun ◽  
Incident Solar Radiation ◽  
Concentrated Solar Energy ◽  
Central Receiver ◽  
Receiver System ◽  
Concentrated Solar Radiation ◽  
Solar Rays

Concentrating Solar Power (CSP) focuses sunlight in order to use the heat energy of the sun. In a central receiver system configuration, many mirrors (heliostats) individually track the sun and reflect the concentrated solar energy onto a receiver on top of a tower. The receiver contains the working fluid which is heated by the concentrated solar radiation. The useful energy that absorbed by the water flows through the receiver in solar tower plant depending on the angle between the solar rays and the position of heliostat in the region of work. Heliostat will reflect the incident solar radiation in the direction of the receiver founded in the top of the tower, in order to get a maximum incident solar radiation on the heliostat reflection area. Because of the cosine factor loss effect due to the sun position is variable along the day from sunrise to sunset, which must be in a minimum value, therefore an automated tracking system with dual axes as a control system with sensors had been built and used to stay the sunrays incident on the receiver, and enable the heliostat to flow the sun where it was

Influence of gaseous medium on crystallization of cordierite glasses, synthesized by exposure to concentrated solar radiation

2009 ◽  
Vol 45 (2) ◽  
pp. 102-104
Author(s):  
G. T. Adylov ◽  
M. A. Zufarov ◽  
G. V. Voronov ◽  
N. A. Kulagina ◽  
E. P. Mansurova ◽  
...  
Keyword(s):  
Solar Radiation ◽  
Gaseous Medium ◽  
Concentrated Solar Radiation

SOLAR PUMPED LASER BASED ON COMPOSITE TITANIUMSAPPHIRE ACTIVE MEDIUM

2018 ◽  
Vol 20 (5) ◽  
pp. 321-323
Author(s):  
Sh. Payziyev ◽  
Kh. Makhmudov ◽  
S. Bakhramov ◽  
A. Kasimov
Keyword(s):  
Laser Radiation ◽  
Pump Power ◽  
Solar Radiation ◽  
Solar Energy ◽  
Computer Simulations ◽  
Active Element ◽  
Radiation Energy ◽  
Laser Radiation Energy ◽  
Optimal Geometry ◽  
Concentrated Solar Radiation

On the basis of the active element of Ti3+:Al2O3, the possibility of converting solar energy into laser radiation energy is investigated. By the computer simulations, it was shown the possibility of reducing the threshold pump power by choosing the optimal geometry of the crystal parameters for end-pumping scheme of concentrated solar radiation.

Interaction of Concentrated Solar Radiation with Materials

2020 ◽  
pp. 1-3
Author(s):  
Muhammad-Sultanhan Paizullahanov ◽  
◽  
Rasul Akbarov ◽  
Abdurashid Abdurakhim Uglu ◽  
Kholmatov, Muslimbek Mukhsinjon ugli Sobirov ◽  
...  
Keyword(s):  
Dielectric Properties ◽  
Solar Radiation ◽  
Recovery Process ◽  
Solar Furnace ◽  
Structure And Properties ◽  
Technological Parameters ◽  
Fine Grained ◽  
Concentrated Solar Radiation ◽  
The Relationship ◽  
Synthesis Of Materials

The paper analyzes approaches to modeling the processes of interaction of concentrated solar radiation with materials. The experimental results obtained on the synthesis of materials from a melt in a solar furnace are presented. It is shown that when melting in a solar furnace under the influence of concentrated solar radiation of high density due to the acceleration of the recovery process, it is possible to obtain a fine-grained microstructure that gives the material enhanced mechanical and dielectric properties. It is shown that the relationship between the structure and properties of the materials obtained with the technological parameters of melting and cooling in a solar furnace can be used as an approach to modeling the interaction of concentrated solar radiation with materials

scholarly journals Solar Heat for Materials Processing: A Review on Recent Achievements and a Prospect on Future Trends

2019 ◽  
Vol 3 (4) ◽  
pp. 83 ◽  
Author(s):  
Rosa
Keyword(s):  
High Temperature ◽  
Solar Radiation ◽  
Materials Processing ◽  
Future Trends ◽  
Solid Materials ◽  
Modular Systems ◽  
Solar Heat ◽  
Thermochemical Processes ◽  
Reaction Chambers ◽  
Concentrated Solar Radiation

Considering works published in the literature for more than a decade (period from January 2008 till June 2019), this paper provides an overview of recent applications of the so-called “solar furnaces”, their reactors, process chambers and related devices, aiming specifically at the processing of (solid) materials. Based on the author’s own experience, some prospects on future trends are also presented. The aim of this work is to demonstrate the tremendous potentialities of the usage of solar heat for materials processing, but also to reveal the necessity of further developing solar-driven high-temperature technologies (which are required to displace the use of electricity or natural gas). In particular, it is essential to improve the temperature homogeneity conditions inside reaction chambers for materials processing using solar heat. Moreover, new innovative modular systems, practical and flexible, for capture, concentration, control and conduction of concentrated solar radiation are suggested. Solar thermal technologies for the production of electricity, as well as solar thermochemical processes for production of gases or liquids, are outside the scope of this review.

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