scholarly journals High-Temperature Monitoring in Central Receiver Concentrating Solar Power Plants with Femtosecond-Laser Inscribed FBG

Sensors ◽  
2021 ◽  
Vol 21 (11) ◽  
pp. 3762
Author(s):  
Roberto Rodríguez-Garrido ◽  
Alejandro Carballar ◽  
Jonathan Vera ◽  
José González-Aguilar ◽  
Adeodato Altamirano ◽  
...  
Keyword(s):  
High Temperature ◽  
Femtosecond Laser ◽  
Power Plants ◽  
Solar Power ◽  
Temperature Measurements ◽  
Fiber Optic Sensor ◽  
Spectral Interval ◽  
Concentrating Solar Power ◽  
Surface Distribution ◽  
Solar Power Plants

This work deals with the application of femtosecond-laser-inscribed fiber Bragg gratings (FsFBGs) for monitoring the internal high-temperature surface distribution (HTSD) in solar receivers of concentrating solar power (CSP) plants. The fiber-optic sensor system is composed of 12 FsFBGs measuring points distributed on an area of 0.4 m2, which leads to obtain the temperature map at the receiver by means of two-dimensional interpolation. An analysis of the FsFBG performance in harsh environment was also conducted. It describes the influence of calibration functions in high-temperature measurements, determines a required 10 nm spectral interval for measuring temperatures in the range from 0 to 700 °C, and reveals wavelength peak tolerances in the FsFBG fabrication process. Results demonstrate the viability and reliability of this measuring technique, with temperature measurements up to 566 °C.

scholarly journals A Review of Conventional and Innovative- Sustainable Methods for Cleaning Reflectors in Concentrating Solar Power Plants

2018 ◽  
Vol 10 (11) ◽  
pp. 3937 ◽  
Author(s):  
Sahar Bouaddi ◽  
Aránzazu Fernández-García ◽  
Chris Sansom ◽  
Jon Sarasua ◽  
Fabian Wolfertstetter ◽  
...  
Keyword(s):  
Power Plants ◽  
Solar Power ◽  
Alternative Methods ◽  
Concentrating Solar Power ◽  
Water Based ◽  
Solar Power Plants ◽  
Cleaning Methods ◽  
The Cost ◽  
Solar Field ◽  
High Reflectance

The severe soiling of reflectors deployed in arid and semi arid locations decreases their reflectance and drives down the yield of the concentrating solar power (CSP) plants. To alleviate this issue, various sets of methods are available. The operation and maintenance (O&M) staff should opt for sustainable cleaning methods that are safe and environmentally friendly. To restore high reflectance, the cleaning vehicles of CSP plants must adapt to the constraints of each technology and to the layout of reflectors in the solar field. Water based methods are currently the most commonly used in CSP plants but they are not sustainable due to water scarcity and high soiling rates. The recovery and reuse of washing water can compensate for these methods and make them a more reasonable option for mediterranean and desert environments. Dry methods, on the other hand, are gaining more attraction as they are more suitable for desert regions. Some of these methods rely on ultrasonic wave or vibration for detaching the dust bonding from the reflectors surface, while other methods, known as preventive methods, focus on reducing the soiling by modifying the reflectors surface and incorporating self cleaning features using special coatings. Since the CSP plants operators aim to achieve the highest profit by minimizing the cost of cleaning while maintaining a high reflectance, optimizing the cleaning parameters and strategies is of great interest. This work presents the conventional water-based methods that are currently used in CSP plants in addition to sustainable alternative methods for dust removal and soiling prevention. Also, the cleaning effectiveness, the environmental impacts and the economic aspects of each technology are discussed.

Optimal scheduling in concentrating solar power plants oriented to low generation cycling

2019 ◽  
Vol 135 ◽  
pp. 789-799 ◽  
Author(s):  
Emilian Gelu Cojocaru ◽  
José Manuel Bravo ◽  
Manuel Jesús Vasallo ◽  
Diego Marín Santos
Keyword(s):  
Power Plants ◽  
Solar Power ◽  
Optimal Scheduling ◽  
Concentrating Solar Power ◽  
Solar Power Plants

A review of concentrating solar power plants in the world and their potential use in Serbia

2012 ◽  
Vol 16 (6) ◽  
pp. 3891-3902 ◽  
Author(s):  
Tomislav M. Pavlović ◽  
Ivana S. Radonjić ◽  
Dragana D. Milosavljević ◽  
Lana S. Pantić
Keyword(s):  
Power Plants ◽  
Solar Power ◽  
Concentrating Solar Power ◽  
The World ◽  
Solar Power Plants ◽  
Potential Use
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