ladydon2
Nov1-09, 07:08 PM
1. The problem statement, all variables and given/known data
A plane of electrical circuits have on top a 1mm layer of substrate k =0.95 W/m K, then a 1.5 mm layer of plastic, k=0.4 W/m K, outside which is a convective coefficient of h=35 W/m squared K to cooling oil at 25 degrees C. If the electrical circuits generates 1000 W/m squared, how hot will they be?
2. Relevant equations
3. The attempt at a solution
A plane of electrical circuits have on top a 1mm layer of substrate k =0.95 W/m K, then a 1.5 mm layer of plastic, k=0.4 W/m K, outside which is a convective coefficient of h=35 W/m squared K to cooling oil at 25 degrees C. If the electrical circuits generates 1000 W/m squared, how hot will they be?
2. Relevant equations
3. The attempt at a solution