Radiosity (heat transfer)
- Radiosity (heat transfer)
In the fields of optics and heat transfer, radiosity is the total emitted and reflected radiation leaving a surface.
The diffuse radiosity (J) is the integral of the hemispherical spectral radiosity () over the spectrum:
:
where is equal to integral over the hemispherical solid angle of the sum of emitted and reflected radiant intensities. [Incropera and deWitt, "Fundamentals of Heat and Mass Transfer", 3E, ISBN 0471386502]
The "radiosity method" is used to solve for the radiative heat transfer between a number of surfaces. This method requires the solution of a system of simultaneous equations using matrix methods because the radiation hitting each surface is determined by the temperatures of all the other surfaces.
See also
* Irradiance
* Radiant flux
* Radiosity (computer graphics)
References
Wikimedia Foundation.
2010.
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