Exchange of Thermal Radiation Between Surfaces Separated by Transparent Medium

  • Rajendra KarwaEmail author


Radiation heat exchange between two black surfaces depends on the shape and size of the bodies, relative position and distance between them while the radiation exchange between gray bodies also depends on their emissivity. For calculation of the radiation exchange between two black surfaces, basic integral equation of the shape factor has been derived which represents the fraction of the total radiation emitted by a surface intercepted by other surfaces. Salient features of the shape factor have been presented and numbers of illustrative examples on calculation of the shape factor for different systems have been given.

Radiation exchange between gray bodies is a complex process. Electrical analogy-based method is given to solve such problems wherein the actual system is reduced to an equivalent electric network. Concept of radiation shield, which reduces the radiation heat transfer from a body by placing a thin opaque partition between the surfaces, has been explained in Sect. 11.9. In the end of the chapter, Newton’s law of cooling is presented.


Shape or geometrical or view factor Shape factor characteristics Radiosity Irradiation Electrical analogy Radiation network Radiation shield Newton’s law of cooling 

Supplementary material


  1. Howell JR (1982) A catalog of radiation configuration factors. McGraw-Hill Book Co, New YorkGoogle Scholar
  2. Mikheyev M (1968) Fundamental of heat transfer. Mir Publishers, MoscowGoogle Scholar
  3. Siegel R, Howell JR (2002) Thermal radiation heat transfer. Taylor & Francis, New YorkGoogle Scholar

Copyright information

© Springer Nature Singapore Pte Ltd. 2020

Authors and Affiliations

  1. 1.Jodhpur Institute of Engineering and TechnologyJodhpurIndia

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