A Novel Portable Device to Measure Transmittance and Reflectance of Parabolic Trough Receiver Tubes in the Field

2014 ◽  
Author(s):  
Guillermo Espinosa-Rueda ◽  
Noelia Martinez-Sanz ◽  
David Izquierdo-Nuñez ◽  
Marta Osta-Lombardo
Keyword(s):  
Power Plants ◽  
Solar Power ◽  
Portable Device ◽  
Plant Production ◽  
Laboratory Studies ◽  
Concentrated Solar Power ◽  
Parabolic Trough ◽  
Solar Power Plants ◽  
Technical Features ◽  
Solar Field

The performance of parabolic trough (PT) receiver tubes (RT) has a direct impact on concentrated solar power (CSP) plant production. As a result, one major need of operation and maintenance (O&M) in operating plants is to monitor the state of the receiver tube as a key element in the solar field. In order to fulfill this necessity, Abengoa Solar has developed the first existing portable device for measuring transmittance and reflectance of parabolic trough receiver tubes directly in the field. This paper offers a description of the technical features of the instrument and reviews the issues related to its usability as a workable portable device in operating solar fields. To evaluate its performance, laboratory studies have been carried out using two patterns to determine the accuracy and standard deviation of the measurements, obtaining excellent results. This information is complemented with data collected by O&M using this instrument in solar power plants. Studies have been carried out to determine the effect of both rainfall and artificial cleaning on the increase of transmittance. These values are then compared to those obtained from hand-cleaning and show important differences. The results are discussed in this paper.

A Novel Portable Device to Measure Transmittance and Reflectance of Parabolic Trough Receiver Tubes in the Field

2016 ◽  
Vol 138 (6) ◽  
Author(s):  
Guillermo Espinosa-Rueda ◽  
Noelia Martinez-Sanz ◽  
David Izquierdo-Nuñez ◽  
Marta Osta-Lombardo
Keyword(s):  
Power Plants ◽  
Solar Power ◽  
Portable Device ◽  
Plant Production ◽  
Laboratory Studies ◽  
Concentrated Solar Power ◽  
Parabolic Trough ◽  
Solar Power Plants ◽  
Technical Features ◽  
Solar Field

The performance of parabolic trough (PT) receiver tubes (RTs) has a direct impact on concentrated solar power (CSP) plant production. As a result, one major need of operation and maintenance (O&M) in operating plants is to monitor the state of the receiver tube as a key element in the solar field. In order to fulfill this necessity, Abengoa Solar has developed the first existing portable device for measuring the transmittance and reflectance of parabolic trough receiver tubes directly in the field. This paper offers a description of the technical features of the instrument and reviews the issues related to its usability as a workable portable device in operating solar fields. To evaluate its performance, laboratory studies have been carried out using two patterns to determine the accuracy and standard deviation of the measurements, obtaining excellent results. This information is complemented with data collected by O&M using this instrument in solar power plants. Studies have been carried out to determine the effect of both rainfall and artificial cleaning on the increase of transmittance. These values are then compared to those obtained from hand-cleaning, and show important differences. The results are discussed in this paper.

Optimized control of the Solar Field in parabolic trough solar power plants

2016 ◽  
Author(s):  
Lourdes A. Barcia ◽  
Fernando Nuno ◽  
Juan A. Martinez ◽  
Juan Diaz ◽  
Antonio Nevado ◽  
...  
Keyword(s):  
Power Plants ◽  
Solar Power ◽  
Parabolic Trough ◽  
Solar Power Plants ◽  
Solar Field

scholarly journals The efficiency of steam production by the Parabolic Trough Collector PTC with the use of nanofluids in the region of Ouargla

2021 ◽  
Vol 1204 (1) ◽  
pp. 012005
Author(s):  
Intissar Achouri ◽  
Mouhamed Elbar Soudani ◽  
Tlili Salah
Keyword(s):  
Thermal Efficiency ◽  
Power Plants ◽  
Solar Power ◽  
Production Capacity ◽  
Fluid Temperature ◽  
Concentrated Solar Power ◽  
Parabolic Trough ◽  
Parabolic Trough Collector ◽  
Solar Power Plants ◽  
Concentrated Solar Power Plants

Abstract Concentrated solar power plants (CSP) contribute to global production (at present) with a capacity of 400 MW, and by 2020 they will reach approximately 20 GW, then nearly 800 GW by 2050, This will prevent the emission of 32 million tons of CO2 annually in 2020, and rise to 1.2 billion tons in 2050, according to the International Greenpeace “Solar Thermal Electricity” 2016 report. Among all the concentrated solar power (CSP) technology available to date, Parabolic Trough Collector (PTC) is the most promising, cost-effective, and efficient solution to generating electrical power, as PTC plants contribute in terms of global production capacity by 73.58% of the overall capacity of concentrated solar power plants (CSP). PTC stations in the production of electricity depend on the generation of hot and pressurized steam that rotates the turbines and to increase the effectiveness of PTC in the production of steam, we use in this study nanofluids by adding copper nanomaterials in different proportions to improve the Thermal efficiency of PTC. We also studied the effect of the width of the PTC slot on the fluid temperature. And from it on the amount of steam produced. The results of the study showed that the Thermal efficiency increases with the increase in the ratio of copper nanomaterials in the water, as the temperature of outlet water reaches 98°C, for the ratio of nanomaterials, 20%, in order to water flow 0.01 Kg/s and display the aperture 3.5 m.

scholarly journals Dynamic Modeling of the Solar Field in Parabolic Trough Solar Power Plants

Energies ◽  
2015 ◽  
Vol 8 (12) ◽  
pp. 13361-13377 ◽  
Author(s):  
Lourdes Barcia ◽  
Rogelio Peón Menéndez ◽  
Juan Martínez Esteban ◽  
Miguel José Prieto ◽  
Juan Martín Ramos ◽  
...  
Keyword(s):  
Dynamic Modeling ◽  
Power Plants ◽  
Solar Power ◽  
Parabolic Trough ◽  
Solar Power Plants ◽  
Solar Field
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