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Absorbing film of solar flat plate collector

A solar panel and absorbing film technology, applied in solar thermal power generation, solar thermal devices, heating devices, etc., can solve the problems of complex film structure, weak film layer, low absorption rate, etc., achieve simple film structure, improve Endothermic effect, high absorption rate effect

Inactive Publication Date: 2013-06-12
SUN YAT SEN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Most of the existing solar flat collector absorption films have low absorptivity and high emissivity, and the film structure is complex, and the film layer is not firm and unstable

Method used

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  • Absorbing film of solar flat plate collector
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Embodiment Construction

[0018] The accompanying drawings are for illustrative purposes only, and should not be construed as limitations on this patent; in order to better illustrate this embodiment, certain components in the accompanying drawings will be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art It is understandable that some well-known structures and descriptions thereof may be omitted in the drawings.

[0019] Such as figure 1 Shown, a kind of absorbing film of solar panel heat collector, wherein, film system structure is

[0020] G︱α 1 m 1 beta 1 Ca 2 m 2 beta 2 C︱A, where G stands for substrate, A stands for air, M 1 stands for metal reflective layer, M 2 Represents the metal absorption layer, C represents the dielectric layer, α 1 Represents metal reflective layer M 1 thickness, α 2 metal absorbing layer M 2 thickness, β 1 , β 2 Represents the thickness of the dielectric layer C. The absorption film is coated w...

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Abstract

The invention relates to the technical field of solar flat plate collectors, particularly to an absorbing film of a solar flat plate collector. The absorbing film of the solar flat plate collector adopts the film structure of G / alpha1 M1 beta 1 C alpha2 M2 beta 2 C / A, wherein G refers to a substrate, A refers to air, M1 refers to a metal reflection layer, M2 refers to a metal absorption layer, C refers to medium layers, alpha 1 refers to the thickness of the metal reflection layer M1, alpha 2 refers to the thickness of the metal reflection layer M2, and beta 1 and beta 2 refer to thickness of the medium layers. The film structure enables the solar flat plate collector adopting the absorbing film to have higher spectrum absorptivity under the premise of absorption at the visible region and reflection of near-infrared rays and further have lower emissivity; and the absorbing film improves the heat absorption effect of the solar flat plate collector, greatly reduces the solar flat plate collector through adopting a wider infrared reflection design, and effectively improves the depth of heat absorption.

Description

technical field [0001] The invention relates to the technical field of solar flat panel heat collectors, and more particularly relates to an absorbing film of a solar flat panel heat collector. Background technique [0002] Solar energy generally refers to the radiant energy of sunlight, which is generally used for power generation in modern times. Since the formation of the earth, organisms have mainly survived on the heat and light provided by the sun. Since ancient times, humans have also known to use sunlight to dry objects and use it as a method of preserving food, such as making salt and drying salted fish. But with the reduction of fossil fuels, there is an intention to further develop solar energy. There are two ways to utilize solar energy: passive utilization (photothermal conversion) and photoelectric conversion. Solar power is an emerging renewable energy source. [0003] A solar panel collector is a device that absorbs solar radiation and transfers the genera...

Claims

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Application Information

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IPC IPC(8): F24J2/48B32B15/20B32B15/18B32B15/00B32B9/04
CPCY02E10/40
Inventor 江绍基钟金池黄辰迪余丽娜
Owner SUN YAT SEN UNIV
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