Radiative Heat Transfer and Selective Emission in Planar Slab Coatings on Hot Emissive Substrates.

Abstract

The spectral radiance of infrared radiation emitted from a smooth planar coating in thermal contact with a hot substrate is analyzed by radiative transport theory. The solution of the radiative transfer equation, which governs the spectral radiance within the coating, is used to determine whether selective (nonblackbody) emitter coatings in infrared banded regions can be obtained in the limiting cases of optically thin or thick regimes. For the reader not interested in the mathematical details of this report, the key conclusions are given following Eq. (22). The results are presented in a summary that shows how varying the optical thickness of the coating, the coating material, and the substrate parameters affect the emitted radiation. Keywords: Radiative transport; Selective emission; Infrared materials.

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Document Details

Document Type
Technical Report
Publication Date
Dec 31, 1987
Accession Number
ADA193133

Entities

People

  • Harold D. Ladouceur
  • John A. Lafemina

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Absorption Coefficients
  • Coefficients
  • Composite Materials
  • Differential Equations
  • Energy
  • Energy Transfer
  • Engineering
  • Equations
  • Heat Transfer
  • Heat Transmission
  • Materials
  • Polyethylenes
  • Radiation
  • Radiative Transfer
  • Scattering
  • Temperature Gradients
  • Thermal Conductivity

Fields of Study

  • Physics

Readers

  • Atmospheric Remote Sensing.
  • Calculus or Mathematical Analysis
  • Surface Engineering/Surface Coating Technology.