Design and thermal performances of Semi-Parabolic Linear Fresnel Reflector solar concentration collector

Zhu, Jun; Huang, Hulin

doi:10.1016/j.enconman.2013.10.015

Cited by 50 publications

(27 citation statements)

References 11 publications

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“…Cosine effect, cleanliness, reflectivity, absorptivity of tube, transmissivity of the receiver cover and other thermal losses, increases the levelised cost of energy of LFR [54]. Some new design of semi parabolic LFR solar concentrator proposed by researchers eliminates the losses of shading and blocking between two adjacent layers [55]. LFR also has the capability of molten salts based thermal storage as the operating temperature of LFR can reach up to 550°C with molten nitrate(molten nitrate is contained in molten salts) as heat transfer fluid [54].…”

Section: Linear Fresnel Reflector (Lfr)mentioning

confidence: 98%

Concentrated solar power technology in India: A review

Bijarniya

Sudhakar

Baredar

2016

Renewable and Sustainable Energy Reviews

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Section: Linear Fresnel Reflector (Lfr)mentioning

confidence: 98%

Concentrated solar power technology in India: A review

Bijarniya

Sudhakar

Baredar

2016

Renewable and Sustainable Energy Reviews

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“…The levelized cost of energy of LFR increases because of some reasons such as reflectivity, cosine effect, tube absorptivity, heat losses and etc . Some novel designs are proposed for semi parabolic LFR solar concentrator in order to eliminate the losses occur due to shading and blocking between two adjacent layers . In addition, LFR has the capability of thermal storage (based on molten salts) since the working temperature can achieve up to 550°C with molten nitrate (molten salts contained molten nitrate) as HTF …”

Section: Solar Thermal Power Generation Systems With Various Solar Comentioning

confidence: 99%

“…Currently, the technology of linear Fresnel reflectors have attracted many researchers and it is under the process of developing . So numerous investigations have been conducted to evaluate and enhance the performance of LFR .…”

Section: Solar Thermal Power Generation Systems With Various Solar Comentioning

confidence: 99%

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Solar power technology for electricity generation: A critical review

Ahmadi

Ghazvini

Sadeghzadeh

et al. 2018

Energy Science & Engineering

304

111

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Negative environmental impact of fossil fuel consumption highlight the role of renewable energy sources and give them a unique opportunity to grow and improve. Among renewable energy sources solar energy attract more attention and many studies have focused on using solar energy for electricity generation. Here, in this study, solar energy technologies are reviewed to find out the best option for electricity generation. Using solar energy to generate electricity can be done either directly and indirectly. In the direct method, PV modules are utilized to convert solar irradiation into electricity. In the indirect method, thermal energy is harnessed employing concentrated solar power (CSP) plants such as Linear Fresnel collectors and parabolic trough collectors. In this paper, solar thermal technologies including soar trough collectors, linear Fresnel collectors, central tower systems, and solar parabolic dishes are comprehensively reviewed and barriers and opportunities are discussed. In addition, a comparison is made between solar thermal power plants and PV power generation plants. Based on published studies, PV‐based systems are more suitable for small‐scale power generation. They are also capable of generating more electricity in a specific area in comparison with CSP‐based systems. However, based on economic considerations, CSP plants are better in economic return.

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“…In such plants, a linear fixed receiver is suspended above a solar field composed by strips of mirrors, flat or slightly concentrating; each strip rotates on a fixed horizontal axis in order to reflect the sun radiation towards the receiver. Several studies have been devoted to plant configurations (Abbas et al, 2013;Grena and Tarquini, 2011;Häberle et al, 2002;Mills and Morrison, 2000;Zhu and Huang, 2014), study and simulation of various aspects of the plant work MunozAnton et al, 2014;Pino et al, 2013;Velazquez et al, 2010;Zheng et al, 2014), analysis of different types of receivers Facao and Oliveira, 2011;Lin et al, 2013;Natarajan et al, 2012;Singh et al, 2010), or comparisons with linear trough systems (Giostri et al, 2013;Morin et al, 2012;Schenk et al, 2014); prototypes have been proposed and built (Areva, 2015;Bernhard et al, 2008Bernhard et al, , 2009Novatec Solar, 2015;Solar Power Group, 2015). The main advantages with respect to trough systems are the fixed receiver, the larger collection area for each receiver (which reduces the cost of the receivers and simplifies the management of the fluid circulation), the small moving parts (mirrors are far smaller than the single-block mirror of a solar trough) and the lower cost of optical components (mirrors are almost flat, and their construction is simpler).…”

Section: Introductionmentioning

confidence: 99%

Optimization of the geometry of Fresnel linear collectors

Boito

Grena

2016

Solar Energy

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Methods and results concerning the optical optimization of a linear Fresnel collector are presented. The variables considered in the optimization are the positions, widths and focal lengths of the mirrors; the mirrors can be of variable size and focal length, and they can be nonuniformly spaced. The target function to be optimized is the plant cost divided by the collected solar radiation in a year. The computation of the collected radiation and of its average on the year, and the optimization of the cost/radiation function are carried out via suitable mathematical methods and the choice of a plausible cost function. Four different levels of optimization (uniformly spaced identical mirrors; nonuniformly spaced identical mirrors; mirrors of the same width with uniform spacing and variable focal lengths; and finally a full optimization) are presented, with a discussion of the resulting gain on the target function (i.e. the reduction of the ratio between the plant cost and the collected radiation). The results show that the application of suitable optimization strategies can lead to an estimated gain around 12% with respect to the initial configuration (all mirrors identical and adjacent), and that a full optimization leads to a gain of 4.5% over a simple uniform optimization. This gain is due in large part to the possibility of regulating the focal lengths (the optimization of focals leads to a 2.8% gain over the uniform case), while only a minor improvement (less than 0.4%) is obtained with nonuniformly spaced identical mirrors

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Design and thermal performances of Semi-Parabolic Linear Fresnel Reflector solar concentration collector

Cited by 50 publications

References 11 publications

Concentrated solar power technology in India: A review

Concentrated solar power technology in India: A review

Solar power technology for electricity generation: A critical review

Optimization of the geometry of Fresnel linear collectors

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