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Reflecting parabolic construction for solar heating systems

Reflecting parabolic construction for solar heating systems description/claims

The present invention relates to a reflecting parabolic construction designed for concentrating solar radiations to be used in heating systems.

Systems exploiting different technologies or methods for collecting an concentrating solar radiation are already commercially available.

The most diffused technologies relate to the linear parabolic collectors, which are so designed as to cause the solar beams to be converged toward a collector, including a diathermal fluid operating as a heat accumulator.

Prior methods or technologies, however, have not provided optimum results, because of the need of making, for carrying out them, very heavy and complex structures.

Accordingly, the aim of the present invention is to overcome the above mentioned problems, by providing a reflecting construction, to be used in solar energy concentrating systems, which reflect construction has a very broad reflecting surface.

Within the scope of the above mentioned aim, a main object of the invention is to provide such a construction of small weight and making and installing cost.

Another object of the present invention is to provide such a construction which is very reliable and safe in operation and can be made with any desired parabolic geometries or shapes.

Yet another object of the present invention is to provide such a construction which can be easily made and which, moreover, is very competitive from a mere economic standpoint.

According to one aspect of the present invention, the above mentioned aim and objects, as well as yet other objects, which will become more apparent hereinafter, are achieved by a reflecting parabolic construction for concentrating solar radiation, characterized in that said construction comprises a parabola including an aluminum fretted central layer having two opposite faces thereon are applied two opposite aluminum layers.

According to a first embodiment of the invention, to the concave part of said parabola a crystal mirror having a very small thickness (less than 1 mm) is applied.

According to a further aspect of the invention, one of the reflecting aluminum layers is made by depositing vapors and is protected by a sol-gel protective layer having a thickness of few microns.

Further characteristics and advantages of the present invention will become more apparent hereinafter from the following detailed disclosure of a preferred, though not exclusive, embodiment of a reflecting parabolic construction, which is shown, by way of an indicative, but not limitative example, in the accompanying drawings, where:

FIG. 1 is a schematic perspective view showing the reflecting parabolic construction according to the invention;

FIG. 2 shows a possible configuration of the subject construction including supporting elements therefor; and

FIG. 3 is a schematic cross-sectional view showing the parabolic mirror structure.

• Provisional Patent
• Utility Patent

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