Modeling method for metal-ceramic solar selective adsorbing coating emissivity model

A technology of absorbing coatings and modeling methods, which is applied in the directions of instruments, design optimization/simulation, calculations, etc., can solve problems such as difficult to accurately predict the spectral selectivity transformation law of emissivity of cermet coatings, and achieve the effect of promoting development

Inactive Publication Date: 2017-05-10
BOHAI UNIV
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Problems solved by technology

[0006] The purpose of the present invention is to provide a kind of modeling method of emissivity model of metal-ceramic solar energy selective absorbing coating, to overcome prior art is difficult to set up metal-ceramic solar energy selective absorbing coating for the multilayer structure of metal-ceramic coating The pitfalls of the modeling problem of layer emissivity
[0007] The present invention further solves the defects in the prior art that it is difficult to accurately predict the spectral selective transformation law of the emissivity of the cermet coating and realize the optimal design of the structural parameters of the coating

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  • Modeling method for metal-ceramic solar selective adsorbing coating emissivity model

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[0017] The present invention will be described in further detail below in conjunction with the accompanying drawings. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0018] see figure 1 and figure 2 , the invention provides a kind of modeling method of metal-ceramic solar energy selective absorbing coating emissivity model, it comprises:

[0019] Known optical constants of metal and ceramic materials （n m， k m ) and (n s， k s ） , the independent variables modeled on the structural parameters of the coating, including the doping volumes of the low and high absorbing layers ( f L , f H ) and thickness ( h L , h H ).

[0020] Step 1, according to the relationship between the complex dielectric function and the complex refractive index ε´=N 2 , to get the complex dielectric functions of metals and ceramics:

[0021] (1)

[0022] The complex dielectric function and ...

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Abstract

The invention discloses a modeling method for a metal-ceramic solar selective adsorbing coating emissivity model. According to the method, structure parameters of a metal-ceramic solar selective adsorbing coating serve as independent variables, and the metal-ceramic coating emissivity model of a multilayer film structure is established through the effective medium theory, derivation of a propagation matrix correlation formula and an operational program written with Lab-view software. Through the method, the change law of spectral selectivity of coating emissivity can be predicted, and the method has important scientific value for optimal design of the structure parameters of the coating and has profound social significance for promoting development of the solar thermal power generation technology and solving energy crisis and environmental pollution.

Description

technical field [0001] The invention relates to the establishment of an emissivity model for metal-ceramic solar selective absorption coatings, and belongs to the research field of emissivity formation mechanism and modeling method of multi-film composite materials. Background technique [0002] The world-wide energy crisis and environmental pollution problems are prominent, and the development and utilization of new energy sources have been valued by research institutions all over the world, especially solar energy utilization technology. As the core component of Concentrating Solar Power (CSP), selective absorbing coatings play a vital role in the conversion between solar energy and thermal energy. [0003] In the early days, the working temperature of solar selective absorbing coatings was relatively low, generally below 200°C. With the continuous advancement of solar energy utilization technology, the working temperature of selective absorbing coatings continues to incr...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/20G06F2113/26Y02E60/00
Inventor 张宇峰李明戴景民邵珠峰楚春雨付莹
Owner BOHAI UNIV
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