Transactions of the Korean Society of Mechanical Engineers B (대한기계학회논문집B)

The Korean Society of Mechanical Engineers (대한기계학회)
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Numerical study of a coating with pigment to selectively reflect the thermal radiation from fire

화염 열복사의 파장별 선택적 반사를 위한 도료 코팅에 대한 수치적 연구

  • Byeon, Do-Yeong (Dept. of Aerospace Engineering, Korea Advanced Institute of Science and Technology) ;
  • Baek, Seung-Uk (Dept. of Aerospace Engineering, Korea Advanced Institute of Science and Technology)
  • 변도영 (한국과학기술원 항공우주공학과) ;
  • 백승욱 (한국과학기술원 항공우주공학과)
  • Published : 1998.03.01
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Abstract

The infrared reflection coatings with pigment can be used to protect the surfaces of combustible materials exposed to fire. To obtain high reflectivities in the infrared range (0.5-10.mu.m) important to fire, several dielectric pigments, such as titanium dioxide, iron oxide, and silicon, can be synthesized to polymer coatings. The theoretical analysis shows that the coating design with particles diameter in the 1.5 to 2.5.mu.m range and volume fraction in the 0.1 to 0.2 range is estimated to be optimal. In the analysis of the radiation, the dependent scattering, absorption by polymeric binder, and the internal interface reflection are considered. In addition, the temperature distribution in the semi-transparent coating layer and an opaque substrate (PMMA) is also presented.

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References

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