Heat Transfer Questions & Answers | |
|
|
|
|
You can set the direction from left to right and if $q$ ends up being negative it means your guess was wrong. What matters is to be consistent. If you draw $q$ from left to right and $q$ is negative in your answer, then keep the answer as negative but make a note that the heat transfer is going from right to left.
|
|
|
|
I don't understand. If it has steel cables in it, the cylinder must be hollow. It can not be full.
|
|
|
|
Yes of course.
|
|
|
|
Radiation heat transfer coming out of objects at 300 K is generally quite small compared to convection heat transfer. It becomes more important thus when the temperatures are higher because its intensity scales with the 4th power of the temperature. At low temperatures, you can ignore it. But at higher temperatures, you should take it into consideration unless there's not enough information to calculate it.
|
|
|
|
Sure, you must use an iterative method for this problem.
|
|
||
$\pi$ |