Suppression of insolation heating using paint admixed with silica spheres - An approach from infrared band electromagnetic scattering

Ohkawa E.; Mikada H.; Goto T.-N.Onishi K.Takekawa J.Taniguchi K.Ashida Y.

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Suppression of insolation heating using paint admixed with silica spheres - An approach from infrared band electromagnetic scattering

机译：Suppression of insolation heating using paint admixed with silica spheres - An approach from infrared band electromagnetic scattering

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The temperature of materials would be raised when the materials are exposed to the sunlight. Recently, it has been experimentally confirmed that such temperature rise may be restrained when coating the materials with paint admixed with fine silica spheres. Experimental consideration of this type of paint has been conducted, but how the paint controls the temperature rise has merely been clarified theoretically. The best diameter of the silica spheres to be admixed is not well understood, either. In this study, we hypothesized that the scattering of light would be attributed to restrain the temperature rise and tried to estimate the optimum size of the silica spheres. We confirmed that our hypothesis would be justified. In the calculation of the scattering intensity, the diameter of spheres in conjunction with the wavelength of incident lights would be the predominant parameter to the scattering effects. Our results might explain that our experimentally observed phenomenon is caused by the scattering of light, i.e., electromagnetic waves.

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来源
《Physics and chemistry of the earth》 |2011年第16期|1412-1418|共7页
作者
Ohkawa E.; Mikada H.; Goto T.-N.Onishi K.Takekawa J.Taniguchi K.Ashida Y.;
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作者单位

Kyoto University, Department of Civil and Earth Resources Engineering, Japan;

NPO Environment, Energy, Forestry and Agriculture Network (EEFA), Executive President, Japan;

Nittoc Osaka Branch Engineering Department, Japan;

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原文格式 PDF
正文语种英语
中图分类地球物理学;
关键词
Electromagnetic wave; Heat radiation suppression; MIE theory; Scattering; Silica spheres;

Suppression of insolation heating using paint admixed with silica spheres - An approach from infrared band electromagnetic scattering

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