Radiation Shielding of a Spherical Black Body
Radiation Shielding of a Spherical Black Body
This Demonstration shows how radiation shields affect radiative heat transfer to a ball. The ball in the center is the object that is shielded; you can remove the shield by unchecking the shield control checkbox. The enclosure around the shield and ball is assumed to be a black body at a temperature of 600 K. The diameter of the radiation shield is always 0.2 m larger than the diameter of the ball, and the shield is assumed thin enough that conductive heat transfer can be ignored. Three views are possible: a 3D physical representation, a radiation network, and a plot of the radiative heat transfer from the enclosure to the ball as a function of the emissivity of the radiation shield. The emissivity of the radiation shield can be adjusted to match emissivities of targeted materials.