Inverse Monte Carlo Ray-Tracing method (IMCRT) applied to line-focus reflectors

Serrano-Aguilera, J.J.; Valenzuela, Loreto; Fernández-Reche, Jesús

doi:10.1016/j.solener.2015.11.036

Cited by 19 publications

(8 citation statements)

References 17 publications

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“…Numerous approaches are considered by the researchers to provide the flux distribution on the absorber surface, and these include: photogrammetry, 10,11 flux mapping, 12 analytical formulation, 6 and ray tracing techniques such as Monte Carlo ray tracing (MCRT), [13][14][15][16][17][18][19][20] Inverse MCRT, 21 finite volume method 22,23 and reverse raytracing. 24 Some researchers used optical software such as Soltrace, 22,[25][26][27] and Zemax 28 for the flux distribution of PTSC.…”

Section: Introductionmentioning

confidence: 99%

Coupled optical and thermal analysis of large aperture parabolic trough solar collector

Malan

Kumar

2020

Int J Energy Res

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Summary Large‐aperture parabolic trough solar collector (PTSC) has the potential to improve the performance of the solar field and also to reduce the capital cost of the power plant. In the present study, coupled flux distribution and thermal analysis of large aperture PTSC are presented by incorporating the limb darkening effect. MATLAB tool is used to develop the in‐house model to obtain the circumferential flux distribution on the absorber surface. The analyses are performed for different Sun shape models, the number of rays, aperture, rim angle, slope error, and receiver displacement on the flux distribution. The flux distribution for large aperture PTSC such as 7, 8, 9, and 10 m has also been studied with an available absorber diameter of 70, 80, 90 and 110 mm. Better manufacturing standards need to be incorporated to improve the performance of the large aperture PTSC with available receiver sizes. There is no significant effect on the intercept factor for the upward and downward displacement of larger aperture PTSC receiver, but the downward displacement of the conventional PTSC receiver drastically decreases the intercept factor. Based on the flux distribution analysis, a collector geometry having an aperture of 9 m with an absorber diameter of 110 mm has been considered for the thermal analysis. The effect of variation of the mass flow rate, aperture, and various heat transfer fluids are studied on the PTSC thermal performance. Liquid sodium offers the least thermal gradient around the absorber circumference, which leads to less deformation of the receiver from the focal length.

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Section: Introductionmentioning

confidence: 99%

Coupled optical and thermal analysis of large aperture parabolic trough solar collector

Malan

Kumar

2020

Int J Energy Res

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“…This is one of the most efficient methods for radiation issues in PTCs. Serrano-Aguilera et al [12] used this method to analyze the efficiency of the parabolic trough concentrator in proportion to its shape. In another work, Wang et al [13] analyzed the effects of glass cover on the receiver tube using the Monte Carlo Ray Tracing method.…”

Section: Introductionmentioning

confidence: 99%

Numerical study of the transparent cover effects with miscellaneous shapes on the parabolic trough solar collector performance

Pourkafi¹,

Ziapour²,

Miroliaei³

2020

International Journal of Thermodynamics

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Optimization of energy production equipment due to significant production cost of each unit of energy is one of the most significant factors for economic development and countries progress. The aim of this work is to improve the efficiency of the parabolic trough collector (PTC) by reducing the heat losses from it. Therefore, it was utilized a PTC with a receiver tube in the focal center of the concentrator that was applied a phase change material (PCM) inside it to store better energy. In the present work, by adding a new section called transparent cover to envelope the PTC, waste of thermal energy from the receiver tube was prevented. The numerical solutions were performed for both summer and winter days. By using of existing formulas, energy and exergy efficiency of the PTC system with different geometrical shapes and heights were obtained and their performance were compared. The results showed that by reducing the height of the covers (i.e. reduction of the space), energy and exergy efficiencies were increased and by providing the triangular cover shape, the system performed better than two others elliptical and rectangular shapes.

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“…Due to the discontinuous, low energy flux, periodicity, and unsteady characteristics of solar energy, solar concentration is commonly utilized in solar engineering fields, among which the solar parabolic trough collectors (PTC) are the most widely accepted solar concentration style [1]. The light ray tracing [2][3][4] and structural analysis [5][6][7] for the PTC have been widely discussed in the literature.…”

Section: Introductionmentioning

confidence: 99%

“…Serrano-Aguilera et al studied the continuous linear reflectors for flat plate receivers with Inverse Monte Carlo ray-tracing method, where a quasi-planar-concentrated flux distribution is required [2]. Cheng et al made a 3D numerical study of heat transfer characteristics in the receiver tube of PTC [3], and they then carried out a comparative analysis for PTC with a detailed Monte Carlo ray-tracing optical model [4].…”

Section: Introductionmentioning

confidence: 99%

“…However, tube receivers are more commonly used in PTC combined with thermodynamic cycles [8][9][10]. In general, two kinds of tubes are commonly utilized in the PTC as the receiver, namely, the vacuum tube [2,[4][5][6][7][8][9][10] and the cavity tube [11][12][13]. The main advantages of the vacuum tube are the high thermal maintenances and low module cost, whereas its structure is frangible.…”

Section: Introductionmentioning

confidence: 99%

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Design and Optimization of Elliptical Cavity Tube Receivers in the Parabolic Trough Solar Collector

Cao

Wang

Zhu

2017

International Journal of Photoenergy

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The nonfragile cavity receiver is of high significance to the solar parabolic trough collector (PTC). In the present study, light distributions in the cavity under different tracking error angles and PTC configurations are analyzed. A new elliptical cavity geometry is proposed and analyzed. It is obtained from this study that light distribution on the tube receiver is asymmetrical when tracking error occurs. On increasing the tracking error angle, more lights are sheltered by the cavity outer surface. The PTC focal distance has negative correlation with the cavity open length, whereas the PTC concentration ratio has positive correlation with the cavity open length. Increasing the tracking error angle and increasing the PTC focal distance would both decrease the cavity blackness. Introducing a flat plate reflector at the elliptical cavity open inlet can largely increase the cavity darkness.

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Inverse Monte Carlo Ray-Tracing method (IMCRT) applied to line-focus reflectors

Cited by 19 publications

References 17 publications

Coupled optical and thermal analysis of large aperture parabolic trough solar collector

Coupled optical and thermal analysis of large aperture parabolic trough solar collector

Numerical study of the transparent cover effects with miscellaneous shapes on the parabolic trough solar collector performance

Design and Optimization of Elliptical Cavity Tube Receivers in the Parabolic Trough Solar Collector

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