Question: inside an aluminum box 19quot x 345quot x 1425quot there...
Inside an aluminum box 19" x 3.45" x 14.25" there is an electronic box (3”x5”x1”) that is uniformly heated to 54C, the box is cooled using an aluminum heat sink that covers the top of the box (3”x5”). I’m not looking for a numerical solution just the appropriate formulas as I am programming this into matlab to show what happens in this system over time.
A. How do I go about sizing the fins for the heat sink? Please point me to the right formulas, methods.
B. Please show how I would solve to find the temperature of the air inside the box and the temperature of the outer aluminum box after some time has gone by (12hours)