thermal radiation


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thermal radiation

[′thər·məl ‚rād·ē′ā·shən]
(thermodynamics)
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

thermal radiation

The transmission of heat from a hot surface to a cooler one in the form of invisible electromagnetic waves, which, on being absorbed by the cooler surface, raise the temperature of that surface without warming the space between.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
References in periodicals archive ?
Using shooting method, Bhattacharyya and Layek [25] obtained the numerical solutions for the flow and heat transfer over a porous shrinking sheet in the presence of thermal radiation. The shrinking sheet problem was extended to micropolar fluids by Ishak et al.
Physically, the thermal radiation therapy is administered on the patient for time t > 0.
This is called the "Soret effect" The Dufour effect is neglected in this study because it is of a smaller order of magnitude than the magnitude of thermal radiation which exerts a stronger effect on the energy flux.
Magnetohydrodynamic boundary-layer flow and heat transfer characteristic due to exponentially stretching sheet in the presence of thermal radiation, Darcy resistance, and variable thermal conductivity have been studied in the paper.
Hence, the equation for net thermal radiation heat transfer [q.sub.r] from the surface, when [T.sub.s] +++++ [T.sub.a], can be written as:
ETFe and ETU can temperature-convert the effect of air temperature and air velocity, long-wave thermal radiation in outdoor space, short-wave solar radiation, contact member's surface temperature, and humidity into individual meteorological elements.
The MHD stagnation-point flow of Casson fluid and heat transfer over a stretching sheet are investigated taking into consideration the thermal radiation effect.
Radiant thermal transmission can be calculated according to the equations of long wave thermal radiation energy transfer between the surfaces with different temperatures.
The third mechanism of heat transfer is thermal radiation which is usually viewed as the most complex.
Also it may be observed that increase in thermal radiation parameter (Rd) produces significant increase in the thickness of the thermal boundary layer of the fluid and so the temperature profile [theta]([eta]) increases and tends to zero at the edge of the boundary layer.
It is now proposed to study the thermal radiation effects on the oscillatory past a vertical plate with uniform heat flux.