Assessment of Parabolic Trough Solar Thermal Plant in Algeria

2021 ◽  
pp. 273-278
Author(s):  
Mihoub Sofiane ◽  
Hani Beltagy ◽  
Mohamed Belhocine
Keyword(s):  
Solar Thermal ◽  
Parabolic Trough ◽  
Thermal Plant

Estimation of the energy production of a parabolic trough solar thermal power plant using analytical and artificial neural networks models

2021 ◽  
Vol 170 ◽  
pp. 620-638
Author(s):  
Anass Zaaoumi ◽  
Abdellah Bah ◽  
Mihaela Ciocan ◽  
Patrick Sebastian ◽  
Mugur C. Balan ◽  
...  
Keyword(s):  
Neural Networks ◽  
Artificial Neural Networks ◽  
Power Plant ◽  
Thermal Power Plant ◽  
Energy Production ◽  
Thermal Power ◽  
Solar Thermal ◽  
Parabolic Trough ◽  
Solar Thermal Power ◽  
Artificial Neural

Comparison of Two Linear Collectors in Solar Thermal Plants: Parabolic Trough vs Fresnel

2011 ◽  
Author(s):  
A. Giostri ◽  
M. Binotti ◽  
P. Silva ◽  
E. Macchi ◽  
G. Manzolini
Keyword(s):  
Power Plants ◽  
Thermal Power ◽  
Solar Thermal ◽  
Heat Transfer Fluid ◽  
Steam Generation ◽  
Parabolic Trough ◽  
Research Activity ◽  
Optical Efficiency ◽  
Synthetic Oil ◽  
Yearly Average

Parabolic trough can be considered the state of the art for solar thermal power plants thanks to the almost 30 years experience gained in SEGS and, recently, Nevada Solar One plants in US and Andasol plants in Spain. One of the major issues that limits the wide diffusion of this technology is the high investment cost of the solar field and, particularly, of the solar collector. For this reason, since several years research activity has been trying to develop new solutions with the aim of cost reduction. This work compares commercial Fresnel technology with conventional parabolic trough plant based on synthetic oil as heat transfer fluid at nominal conditions and evaluates yearly average performances. In both technologies, no thermal storage system is considered. In addition, for Fresnel, a Direct Steam Generation (DSG) case is investigated. Performances are calculated by a commercial code, Thermoflex®, with dedicated component to evaluate solar plant. Results will show that, at nominal conditions, Fresnel technology have an optical efficiency of 67% which is lower than 75% of parabolic trough. Calculated net electric efficiency is about 19.25%, while parabolic trough technology achieves 23.6%. In off-design conditions, the gap between Fresnel and parabolic trough increases because the former is significantly affected by high radiation incident angles. The calculated sun-to-electric annual average efficiency for Fresnel plant is 10.2%, consequence of the average optical efficiency of 38.8%, while parabolic trough achieve an overall efficiency of 16%, with an optical one of 52.7%. An additional case with Fresnel collector and synthetic oil outlines differences among investigated cases. Finally, because part of performance difference between PT and Fresnel is simple due to different definitions, additional indexes are introduced in order to make a consistent comparison.

Optimized variable-focus-parabolic-trough reflector for solar thermal concentrator system

Solar Energy ◽  
2012 ◽  
Vol 86 (5) ◽  
pp. 1164-1172 ◽  
Author(s):  
Chung-Yu Tsai ◽  
Psang Dain Lin
Keyword(s):  
Solar Thermal ◽  
Parabolic Trough ◽  
Variable Focus
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