1. Heat Transfer in Extended Surface
Conduction-convection system: Fin

2. What is it?

3. Thin Plate Fins of Car Radiator

4. Extended Surface
Increase the rate of heat transfer by attaching extended surfaces (fin) made of highly conductive materials

5. Fin configurations

6. Fin Equation

7. Fins of Uniform Cross-Sectional Area
Excess Temperature

8. A Long Circular Fin of Uniform Cross Section

9. Temperature distribution and heat loss for fins of uniform cross-section

10. Fin Efficiency

11. Using graphs…

12. Fin of Non-uniform Cross Section

13. Fin Effectiveness