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Reflecting parabolic construction for solar heating systems

a technology of solar heating system and parabolic construction, which is applied in the direction of solar heat devices, solar-ray concentration, liquid/solution decomposition chemical coating, etc., can solve the problems of insufficient optimality of prior methods or technologies, and achieve the effects of reliable and safe operation, small weight, and low installation cos

Inactive Publication Date: 2009-03-05
XELIOX
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0006]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.
[0007]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.
[0008]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.

Problems solved by technology

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.

Method used

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  • Reflecting parabolic construction for solar heating systems
  • Reflecting parabolic construction for solar heating systems
  • Reflecting parabolic construction for solar heating systems

Examples

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Effect test

first embodiment

[0020] the reflecting parabola comprises a central aluminum fretted layer, on the opposite faces thereof are applied two respective aluminum layers, a very small thickness (less than 1 mm) crystal mirror being further applied to the concave portion of the parabola.

second embodiment

[0021]The second embodiment consists of a reflecting parabola including a central fretted aluminum layer, on the opposite faces thereof are applied two further respective aluminum layers, one of which is made of a reflecting aluminum material obtained by depositing vapors and being protected by a few micron thickness sol-gel material.

[0022]As clearly shown, the parabolic mirrors are made starting from a laminated material 20, including a central aluminum fretted portion 21, on the opposite faces of which are applied layers 22, also made of aluminum.

[0023]According to the present invention, the reflecting surface 23 comprises a colloidal suspension, adapted to solidify to a gel consistency.

[0024]The thus made porous product is chemically purified and heated to high temperatures, thereby providing high purity oxides.

[0025]To the thus formed gel further doping substances are advantageously added to provide the made glass like solid material with particular properties, the set glass mat...

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Abstract

A reflecting parabolic construction for solar heating systems comprises at least a reflecting parabola for concentrating solar beams on a thermal carrier containing receiver tube, wherein the parabola comprises an aluminum fretted central layer, on the faces thereof two opposite aluminum layers are applied. According to a first embodiment, in the concave part of the reflecting parabolic construction a crystal mirror of minimum thickness is applied. According to a further aspect of the invention, one of the layers is a reflecting aluminum layer made by depositing vapors, and protected by a sol-gel protective layer having a thickness corresponding to few microns.

Description

BACKGROUND OF THE INVENTION[0001]The present invention relates to a reflecting parabolic construction designed for concentrating solar radiations to be used in heating systems.[0002]Systems exploiting different technologies or methods for collecting an concentrating solar radiation are already commercially available.[0003]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.[0004]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.SUMMARY OF THE INVENTION[0005]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.[0006]Wit...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): F24J2/12F24S23/71F24S23/70F24S23/74
CPCC23C18/1208C23C18/1254F24J2/1057Y02E10/45F24J2002/1071G02B1/105G02B5/0808F24J2/14F24S23/74F24S2023/86F24S23/82G02B1/14Y02E10/40
Inventor DONATI, FRANCESCODONATI, GIUSEPPE
Owner XELIOX
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