Fundamentals of Thermal Radiation


Thermal radiation is emitted from any body whose temperature exceeds absolute zero. It is the mechanism by which heat is exchanged among bodies at different temperatures in the absence of an intervening medium. In this chapter we present the basic concepts from electromagnetic theory and geometrical optics that are required for the formulation of mathematical models describing radiation heat transfer. Included is an introductory treatment of the radiation behavior of dielectrics and metals.

2.1Thermal Radiation
2.3Intensity of Radiation (Radiance)
2.4Directional Spectral Emissive Power
2.5Hemispherical Spectral Emissive Power
2.6Hemispherical Total Emissive Power
2.7The Blackbody Radiation Distribution Function
2.8Blackbody Properties
2.9Emission and Absorption Mechanisms
2.10Definition of Models for Emission, Absorption, and Reflection
2.11Introduction to the Radiation Behavior of Surfaces
2.12Radiation Behavior of Surfaces Composed of Electrical Non-Conductors (Dielectrics)
2.13Radiation Behavior of Surfaces Composed of Electrical Conductors (Metals)

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