0
$\begingroup$

In this question there is a value given for absorptivity of infrared radiation however in order to work out a value for heat flux emitted from the solar panel in order to answer part (a) surely I'd need a value of emissivity? I have been stuck on this and have no clue how to work part (a) out without a value for emissivity.

enter image description here

$\endgroup$
0
$\begingroup$

You don't get the the emissivity coefficient because it is already factored in the problem. You have a constant temperature of $71[^oC]$ on the external surface, and this is explicitly stated as a steady state problem.

So you only need to consider other types of heat transfer (e.g. conductive).

$\endgroup$

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.