Which of the following points are the assumptions made in analysis of fins?
1. Steady state heat conduction
2. Negligible volumetric heat generation in fin
3. Negligible thermal contact resistance
4. Negligible radiation from fin surface1
1, 3 and 4
2
1, 2 and 3
3
2, 3 and 4
4
1, 2, and 4
5
1, 2, 3 and 4