Method for distributing heliostats in tower plant

a technology of heliostats and tower plants, applied in the direction of solar heat systems, solar heat simulation/prediction, lighting and heating apparatus, etc., can solve problems such as blockag

Inactive Publication Date: 2013-04-18
ABENGOA SOLAR NEW TECH SA
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  • Abstract
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  • Application Information

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Problems solved by technology

All of these types of plants feature a configuration in which the heliostats are distributed as a function of the size and distance to the tower, following certain common radial dispositions from the tower and known as “corn

Method used

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  • Method for distributing heliostats in tower plant
  • Method for distributing heliostats in tower plant
  • Method for distributing heliostats in tower plant

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Embodiment Construction

[0007]The object of the invention is the application of the arrangement presented by leaves, stems and seeds in plants to the heliostats' specific distribution in the solar field. Said arrangement is known as phyllotaxis and it is characteristic of each plant species. Its function is for those plants, stems and seeds to be exposed to the sun with the least interferences possible from their companions maximizing the collection of light.

[0008]This specific distribution enables the heliostats to be able to be placed in such a way that they minimize the optical losses produced by shadows and blockings among the neighbouring heliostats, atmospheric attenuation, and an increase in the interception caused by the large distances between the heliostats and the tower, thus optimizing the use of the solar radiation upon being able to maximize the density of heliostats in the solar field.

[0009]The golden section or “divine proportion” (employed in Greek classicism) comes from the division of a ...

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Abstract

Method for distributing heliostats in a tower solar plant surrounded by a field of heliostats which reflect solar radiation on said tower. The distribution method for said heliostats consists of imitating the systems that are found in nature to maximize the collection of light (plant seeds, leaves and petals) and which is mathematically described by Fermat spirals in a number belonging to the Fibonacci series, through the placement, in polar coordinates, of each heliostat according to a radius and an angle defined by
rn=cn·n;θn=n·2·πτ2;
being:
    • rn distance from the tower (2) to the position of the heliostat n (3),
    • θn the angle formed by the radius rn with the radius rn-1,
    • n number of the heliostat (3) we wish to place,
    • cn parameter that corresponds to the compactness index of the heliostats (3) in the plant,
    • τ the irrational limit of the golden section, i.e.,
τ=1+1+1+1+1+…

Description

TECHNICAL AREA OF THE INVENTION[0001]This invention is encompassed within the area of electric energy generation from solar radiation through a plant like those with a central tower receptor.[0002]The object of the invention consists of achieving optimal performance of the thermo electric plant through the selective distribution of the heliostats relative to the receptor tower.BACKGROUND OF THE INVENTION[0003]A thermo electric solar plant is an industrial facility in which, through the heating of a fluid by way of solar radiation and its use in a convectional thermo dynamic cycle, the necessary power is produced to move an alternator for the generation of electric energy in the same way as in a classic thermal plant.[0004]Constructively, it is necessary to concentrate the solar radiation in order to be able to achieve elevated temperatures, of over 300° C., and thus obtain an acceptable performance in a thermo dynamic cycle, which would not be attainable with lower temperatures. The...

Claims

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Application Information

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IPC IPC(8): F24J2/10F24S23/70
CPCF24J2/10F24J2002/0084F24J2200/04Y02E10/40F24J2002/1076F24S2020/16F24S2201/00F24S2023/87F24S23/70
Inventor QUERO GARCIA, MANUELPFANDER, MARKUSGERTIG, CHRISTIANOSUNA GONZALES-AGUILAR, RAFAEL
Owner ABENGOA SOLAR NEW TECH SA
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