Solar radiation modular collector

Abstract

The invention relates to the field of solar radiation collectors intended to convert energy of solar radiation into thermal energy, specifically, to the solar radiation collectors constructed as the combination of a concentrated solar radiation receiver, a single-curvature or compound-curvature concentrator and a tracking mechanism. A thermal insulation of the concentrated solar radiation receiver and the concentrated solar radiation receiver itself play a role of details in the tracking mechanism.

Description

FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT [0001] Not Applicable. BACKGROUND OF THE INVENTION [0002] This invention relates to the field of solar radiation collectors intended to convert energy of solar radiation into thermal energy, especially, to the solar collectors, which incorporate single-curvature or compound-curvature concentrators. [0003] In the case of application of single-curvature parabolic mirrors as the concentrators, the modular solar radiation collector is constructed as combination of an elongated receiver, the single-curvature concentrator and a tracking mechanism, which ensures steady positioning the elongated receiver in the focal zone of the single-curvature concentrator. [0004] It is known, that such solar collectors allow to achieve temperatures of a working fluid significantly higher than 100° C.; this in turn gives possibility to apply obtained thermal energy in different processes of industry or to convert this thermal energy into electricity with suffici...

AI Technical Summary

Benefits of technology

[0011] The metal envelope insulates most of the outer surface of the radiation receiving pipe with significant diminishment of heat losses caused by convection and radiation from this part of the outer surface.

[0039] The internal surface of the internal wall of the double-wall funnel can be provided with the property of high reflectivity for solar radiation; in such a way, this internal wall plays a role of an additional non-imaging concentrator of the solar radiation.

Problems solved by technology

Sealing the metal pipe of the receiver with the glass envelope is very expensive and sophisticated from the technological point of view.

It is impossible to insulate thermally the radiation receiving pipe in a modular manner.

Low strength of the glass envelope does not give possibility to apply this glass envelope as a carrying element of the construction of a solar collector.

Same drawbacks are true for the common solar collectors with application of compound-curvature dish-type concentrators.

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