Design of a solar concentrator combining paraboloidal and hyperbolic mirrors using ray tracing method

Chen, Chi Feng; Lin, Chih Hao; Jan, Huang Tzung; Yang, Yun Ling

doi:10.1016/j.optcom.2008.10.017

Cited by 56 publications

(24 citation statements)

References 16 publications

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“…The result of the RX concentrator by revealed that while field of view is minimum (< 6 degrees full angle), despite the concentrations are up to 95% of the theoretical maximum, its imaging function has peculiarity with normal incidence of plano convex spherical lens with optimum loss of focus [61,62]. Therefore the RX and RXI concentrator with acceptance angle that is below 5 degrees typifies a good potential in 3-D [63].…”

Section: Hyperboloid Concentratormentioning

confidence: 99%

“…A solar concentrator with primary parabolodial and secondary hyperboloidal mirrors that was examined via the ray tracing technique to get higher concentration ratio, gave results that showed tracing technique have the potential to increase the concentration of solar flux twice while concentration tracking error exit [55]. The proposition of some equations for designing hyperboloid concentrators was made by [56].…”

Section: Hyperboloid Concentratormentioning

confidence: 99%

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A brief review of solar concentrators

Olawole

2015

2015 International Conference on Energy Economics and Environment (ICEEE)

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For efficient and cost effective utilization Solar energy solar concentrators are vital. These are finding increasing applications in many solar energy applications such as concentrated solar photovoltaics, solar steam power generation, solar energy storage, solar cooking etc.. In this brief review we discuss the various types of solar concentrators, their current applications, advantages and disadvantages. We also suggest future new applications of solar concentrators.

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Section: Hyperboloid Concentratormentioning

confidence: 99%

Section: Hyperboloid Concentratormentioning

confidence: 99%

A brief review of solar concentrators

Olawole

2015

2015 International Conference on Energy Economics and Environment (ICEEE)

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“…Cagnoli et al [11] performed numerical research on influence of geometry and air--flow on performance of central tower solar plant. Chen et al [12] modeled concentrator consisting of paraboloidal and hyperboloidal disks to investigate the influence of parabola shape and its focal length on collector effectiveness. Hachicha et al [13] presented a CFD simulation of fluid flow around parabolic solar concentrator.…”

Section: Irradiance In Polandmentioning

confidence: 99%

Numerical studies on capability to focus solar radiation with mirrors of different curvatures

Kaczor¹,

Buliński²,

Werle³

2019

THERM SCI

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Original scientific paper https://doi.org/10.2298/TSCI19S4153KThe article presents the methodology and results of a parametric analysis performed to investigate the effects of changes in the curvature of the solar concentrator mirror on its ability to focus the radiation. Working conditions of the concentrator, i. e. possible values of radiation intensity, were adopted according to irradiance typical for Poland, and, therefore, similar to the conditions in many European countries. The curvatures of examined mirrors were obtained by modification of a parabolic curve. The calculations were conducted for two cases: when the Sun radiation falls completely directly and when it's half diffuse. The 2-D simulations were conducted in ANSYS FLUENT 18.2 software. Discrete ordinates model was employed to simulate radiation phenomenon. Also, a sensitivity analysis was carried on discrete ordinates model parameters and density of the computational mesh. The results allow stating that some of the new curvatures provide only slightly worse focus than the classical parabolic shape, but also show greater insensitivity to the increasing share of diffusive part of radiation. The presented model is a quick and proven tool for testing new curvatures of solar concentrator mirrors.

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“…They commonly use the Monte Carlo ray-tracing to predict the concen- [3], [4], [9]. In this approach, solar radiation is assumed to be composed of discrete energy bundles and the computation consists of following their probable paths which are generated randomly from the solar source up to the optical components [17].…”

Section: Modeling Of Radiative Heat Transfermentioning

confidence: 99%

Contribution to the Optical Design of A Concentrator with Uniform Flux for Photovoltaic Panels

Sanfo¹,

Ouédraogo²

2015

aep

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In this investigation the aim is to broaden the space of optics for Low Concentrating Photovoltaic applications. The main target is to achieve the concentration of sunlight uniformly over a large photovoltaic receiver. To solve this problem we implemented a Monte-Carlo method and defined a new parameter in order to facilitate the analysis of irradiance distributions. The geometric parameters to consider in order to reach the optimization goals have been established by dichotomous search. Utilizing this numeric method, we analyzed the influence of several geometrical parameters on the behavior of hypothetical optics. With this procedure we obtained a probative configuration made of simple geometries, leading to an uniform irradiation distribution.

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Design of a solar concentrator combining paraboloidal and hyperbolic mirrors using ray tracing method

Cited by 56 publications

References 16 publications

A brief review of solar concentrators

A brief review of solar concentrators

Numerical studies on capability to focus solar radiation with mirrors of different curvatures

Contribution to the Optical Design of A Concentrator with Uniform Flux for Photovoltaic Panels

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