Modeling and simulation of a Linear Fresnel solar collector

Alj, Soukaina El; Mers, Ahmed Al; Boutammachte, Noureddine; Bouatem, Abdelfattah; Merroun, Ossama

doi:10.1109/irsec.2014.7059855

Cited by 3 publications

(1 citation statement)

References 6 publications

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“…2. The architecture of the code is constituted of the following libraries [29]: -Shape library: contains several parametric functions that identify the geometrical shape of the solar field such as flat plane, cylindrical and parabolic shapes, etc … -Intersection library: it allows the calculation of intersection points between sun rays and solar field components, and the determination of their corresponding normal vector at the given point. -Track-Ray library: within this library, the new directions of reflected or refracted sun rays are calculated.…”

Section: Optical Codementioning

confidence: 99%

Impact of heliostat curvature on optical performance of Linear Fresnel solar concentrators

Benyakhlef¹,

Mers²,

Merroun³

et al. 2016

Renewable Energy

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a b s t r a c tThe present paper gives a numerical investigation of the effect of mirror curvature on optical performance of a Linear Fresnel Reflector solar field installed recently in Morocco. The objective is to highlight and discuss the effect of mirror curvature on the flux density distribution over the receiver and the system optical efficiency. For this purpose, a Monte Carlo-ray tracing simulation tool is developed and used to optimize the optical design taking into account the curvature degree of the heliostat field. In order to assess the accuracy of the numerical code developed and the validity of simulation results, a set of verification tests were developed and detailed within this article. Then, the optical performance of the system is evaluated as a function of mirror curvature and receiver height. The major challenge of this study is to find a trade-off between heliostat curvature and receiver height since lower and smaller receivers may reduce the system cost. It has been found that the flux distribution over the receiver and the optical efficiency of the system are relatively sensitive to the mirror curvature. We have demonstrated quantitatively how the use of curved mirrors can enhance the optical performance and reduce the required receiver size.

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Section: Optical Codementioning

confidence: 99%

Impact of heliostat curvature on optical performance of Linear Fresnel solar concentrators

Benyakhlef¹,

Mers²,

Merroun³

et al. 2016

Renewable Energy

View full text Add to dashboard Cite

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Optical Modeling and Analysis of the First Moroccan Linear Fresnel Solar Collector Prototype

Alj¹,

Mers²,

Merroun³

et al. 2017

Journal of Solar Energy Engineering

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Recently, linear Fresnel reflectors (LFR) arouse an increasing interest by the scientific and industrial community and have had a really fast development in the domain of concentrated solar power (CSP). LFR is considered as a promising technology which could produce an optical performance lower than those of parabolic trough collector, but its component simplicity would allow high cost reductions in its manufacturing compared to high investment costs of parabolic troughs. The purpose of this paper is to analyze the optical performances of an LFR prototype developed in the framework of CHAMS project, Morocco. The development of this prototype comes to supply industrial applications needing heat at small to medium temperature levels. To achieve this objective, an optical code based on the Monte Carlo (MC) ray tracing technique was developed for optical optimization purposes. The developed code identifies geometrical parameters that have a greater influence on optical efficiency of the LFR system as the mirror spacing arrangement, the receiver height, the receiver geometrical configuration taking into account the secondary reflector shape, and the absorber tube diameter. An analysis is conducted to identify the contribution of each mode of optical losses (blocking, shading, cosine…) in the optical efficiency of the system. Then, an optimization procedure is applied to enhance the optical performances of the prototype.

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Thermal and Optical Efficiency Analysis of the Linear Fresnel Concentrator Compound Parabolic Collector Receiver

Ajdad¹,

Baba²,

Mers³

et al. 2018

Journal of Solar Energy Engineering

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A solar heating compound parabolic collector (CPC) using air and palm oil as heat carrier fluid is proposed and analyzed within this study via heat transfer and ray tracing simulations. The system is a linear focusing solar system intended to be used for applications across a broad range of industrial sectors for generating medium temperature heat up to 250 °C. The Monte Carlo ray tracing method was used to predict the optical performances of the receiver. We have developed a simplified thermal model to investigate and analyze the thermal performances of the receiver under different conditions. It has been demonstrated that the investigated receiver satisfactorily matches the heat demand by producing low and medium temperature heat with an annual system efficiency of 45%.

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Modeling and simulation of a Linear Fresnel solar collector

Cited by 3 publications

References 6 publications

Impact of heliostat curvature on optical performance of Linear Fresnel solar concentrators

Impact of heliostat curvature on optical performance of Linear Fresnel solar concentrators

Optical Modeling and Analysis of the First Moroccan Linear Fresnel Solar Collector Prototype

Thermal and Optical Efficiency Analysis of the Linear Fresnel Concentrator Compound Parabolic Collector Receiver

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