A lab-scale rotary kiln for thermal treatment of particulate materials under high concentrated solar radiation: Experimental assessment and transient numerical modeling

Solar Energy ◽  
2019 ◽  
Vol 188 ◽  
pp. 1013-1030 ◽  
Author(s):  
Alessandro Gallo ◽  
Elisa Alonso ◽  
Carlos Pérez-Rábago ◽  
Edward Fuentealba ◽  
María Isabel Roldán
Keyword(s):  
Numerical Modeling ◽  
Thermal Treatment ◽  
Solar Radiation ◽  
Rotary Kiln ◽  
Experimental Assessment ◽  
Particulate Materials ◽  
Concentrated Solar Radiation

Numerical modeling and experimental assessment of sustainable woody biomass torrefaction via coupled TG-FTIR

2021 ◽  
Vol 146 ◽  
pp. 105981
Author(s):  
Edgar A. Silveira ◽  
Sandra M. Luz ◽  
Rosineide M. Leão ◽  
Patrick Rousset ◽  
Armando Caldeira-Pires
Keyword(s):  
Numerical Modeling ◽  
Woody Biomass ◽  
Experimental Assessment

Evaluation of the Hourly Global Solar Radiation on a Horizontal Plane for Two Sites in Algeria

2014 ◽  
Vol 925 ◽  
pp. 641-645 ◽  
Author(s):  
Mohamed Salmi ◽  
Hassen Bouzgou ◽  
Yarub Al-Douri ◽  
Abdelhakim Boursas
Keyword(s):  
Solar Radiation ◽  
Gaussian Distribution ◽  
Horizontal Plane ◽  
Experimental Validation ◽  
Global Solar Radiation ◽  
Distribution Model ◽  
Experimental Assessment ◽  
Precise Prediction ◽  
Gaussian Distribution Model ◽  
Modelling Approach

We present three models for the estimation of hourly global solar radiation for two sites in Algeria, namely: Djelfa (Latitude 34.68°N, Longitude 3.25°E, Altitude 1126 (m)) and Ain Bessem (Latitude 36.31°N, Longitude 3.67°E, Altitude 629 (m)). The models are: the Gaussian distribution model, the model by Collares-Pereira-RabI and the H.A. model (Hourly absolute modelling approach). The experimental assessment was done using recorded values of the hourly global solar radiation on a horizontal plane during the period 2000-2004. The obtained results show a close similarity between the solar radiation values calculated by the three models and the measured values, especially for the first model. The experimental validation shows promising results for the estimation and precise prediction of the hourly global 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.

Sign in / Sign up

Export Citation Format

Share Document