scholarly journals Measurement Techniques for the Optical Quality Assessment of Parabolic Trough Collector Fields in Commercial Solar Power Plants

2007 ◽  
Author(s):  
Steffen Ulmer ◽  
Klaus Pottler ◽  
Eckhard Lu¨pfert ◽  
Marc Ro¨ger
Keyword(s):  
Manufacturing Process ◽  
Power Plants ◽  
Solar Power ◽  
Optical Quality ◽  
Optical Performance ◽  
Parabolic Trough ◽  
High Optical Quality ◽  
Parabolic Trough Collector ◽  
Solar Power Plants

The optical quality of the collector field of concentrating solar power plants is an essential factor for their profitability. High optical quality can be achieved and guaranteed when the manufacturing process is continuously monitored and adjusted in its essential steps. A stationary, automatic photogrammetry system has been developed for the shape accuracy control of concentrator structures. It uses a digital camera, automatically moved around the object, computer controlled automatic image evaluation and continuous calibration checks. It is robust and fast enough to be integrated in a solar collector production line. For on-site measurements of mirror slope in parabolic trough collector fields, a new method is presented. It uses a set of pictures of the reflections of the absorber tube in the concentrator. The slope errors of the mirror surface are calculated with high spatial resolution and accuracy. The effects of the reflector slope deviations on the optical performance are evaluated with ray-tracing. The results give detailed information about the optical quality of the concentrator, inaccuracies in the manufacturing process, and their optical performance penalty.

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 Optimal start-up operating strategies for gas-boosted parabolic trough solar power plants

Solar Energy ◽  
2018 ◽  
Vol 176 ◽  
pp. 589-603 ◽  
Author(s):  
Davide Ferruzza ◽  
Monika Topel ◽  
Björn Laumert ◽  
Fredrik Haglind
Keyword(s):  
Power Plants ◽  
Solar Power ◽  
Parabolic Trough ◽  
Start Up ◽  
Solar Power Plants ◽  
Operating Strategies

scholarly journals Conceptual Study of a Thermal Storage Module for Solar Power Plants with Parabolic Trough Concentrators

10.5772/54060 ◽  
2013 ◽  
Author(s):  
Valentina A. ◽  
Carmelo E. ◽  
Giuseppe M. ◽  
Rosa Di ◽  
Fabrizio Girardi ◽  
...  
Keyword(s):  
Power Plants ◽  
Solar Power ◽  
Thermal Storage ◽  
Parabolic Trough ◽  
Solar Power Plants ◽  
Conceptual Study

Model and control scheme for recirculation mode direct steam generation parabolic trough solar power plants

2017 ◽  
Vol 202 ◽  
pp. 700-714 ◽  
Author(s):  
Su Guo ◽  
Deyou Liu ◽  
Xingying Chen ◽  
Yinghao Chu ◽  
Chang Xu ◽  
...  
Keyword(s):  
Power Plants ◽  
Solar Power ◽  
Steam Generation ◽  
Parabolic Trough ◽  
Control Scheme ◽  
Direct Steam ◽  
Solar Power Plants ◽  
And Control

scholarly journals Reducing the Cost of Energy From Parabolic Trough Solar Power Plants

Solar Energy ◽  
2003 ◽  
Author(s):  
Henry Price ◽  
David Kearney
Keyword(s):  
Mojave Desert ◽  
Power Plants ◽  
Large Scale ◽  
Solar Power ◽  
Parabolic Trough ◽  
Cost Of Energy ◽  
Solar Power Plants ◽  
The Cost ◽  
The Impact ◽  
Fossil Fuel Power Plants

Parabolic trough solar technology is the most proven and lowest cost large-scale solar power technology available today, primarily because of the nine large commercial-scale solar power plants that are operating in the California Mojave Desert. However, no new plants have been built during the past ten years because the cost of power from these plants is more expensive than power from conventional fossil fuel power plants. This paper reviews the current cost of energy and the potential for reducing the cost of energy from parabolic trough solar power plant technology based on the latest technological advancements and projected improvements from industry and sponsored R&D. The paper also looks at the impact of project financing and incentives on the cost of energy.

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