Control of radiative properties of coatings pigmented with Fe 2O 3 nanoparticles

Hiroki Gonome, Mehdi Baneshi, Atsuki Komiya, Shigenao Maruyama

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

This study describes nanoparticles pigmented coatings used in controlling the radiative properties of surfaces exposed to sunlight. An optimization method that embraces both thermal and aesthetic requirements has been proposed. The proposed coatings maximize the reflectivity of the near infrared (NIR) region to reduce thermal heating, while for aesthetic appeal they minimize the visible (VIS) reflected energy. This spectral behavior can be achieved by controlling the size and concentration of pigment particles and coating thickness. In this study, both experimental and numerical approaches are applied on Fe 2O 3 pigmented coating samples with 0.2 μm and 1 μm of average particle size and different particle concentrations and coating thicknesses. For numerical part the radiation analysis using the Radiation Element Method by Ray Emission Model (REM 2) in a one dimensional parallel plane model is conducted. From the numerical results, it is shown that the optimum size of Fe 2O 3 particles for our desired spectral behavior is about 0.8 μm. The experimental results also show that the samples made from 1 μm particles have better performance for our objective.

本文言語English
ホスト出版物のタイトルASME/JSME 2011 8th Thermal Engineering Joint Conference, AJTEC 2011
出版ステータスPublished - 2011 12 1
イベントASME/JSME 2011 8th Thermal Engineering Joint Conference, AJTEC 2011 - Honolulu, HI, United States
継続期間: 2011 3 132011 3 17

出版物シリーズ

名前ASME/JSME 2011 8th Thermal Engineering Joint Conference, AJTEC 2011

Conference

ConferenceASME/JSME 2011 8th Thermal Engineering Joint Conference, AJTEC 2011
国/地域United States
CityHonolulu, HI
Period11/3/1311/3/17

ASJC Scopus subject areas

  • エネルギー工学および電力技術

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