1. Comparison between Serrated & Notched Serrated Heat Exchanger Fin Performance
Presented by
NABILA RUBAIYA

2. Basics of Heat Exchanger

3. Plate Fin Heat Exchanger

4. Different Types of Plate Fin

5. Serrated Plate fin

6. Notched Serrated Plate Fin

7. Heat Transfer Theory
Q = h A ΔT = h A (Tin - Tout) ΔP = ρ f (L/D) (V2/2)
Q = Convection heat transfer rate ΔP = Pressure drop
h = Heat transfer coefficient ρ = Air density
A = Fin surface area f = Friction factor
Tin = Fluid inlet temperature L/D = length to diameter ratio
Tout = Fluid outlet temperature V = Air inlet velocity

8. Desired Performance
Temperature difference Pressure drop

9. Pressure Drop Result (Serrated)

10. Pressure Drop Result (Notched Serrated)

11. Air Outlet Temperature (Serrated)

12. Air Outlet Temperature (Notched Serrated)

13. Final Result Temperature & Pressure for V= 5m/s Serrated Fin H.E
Notched Serrated Fin H.E
Change of temp of air from inlet to outlet
0.1 K
0.05 K
Change of pressure across the total volume
46 Pa
29 Pa

14. Conclusion Heat exchanger working procedure
Heat transfer and pressure drop theory
Effect of surface area on heat exchanger performance
Performance calculating parameters
ANSYS Fluent simulations
Notched serrated fin is more efficient than traditional serrated fin for pressure drop performance
Serrated fin is more efficient than notched serrated fin for heat transfer performance

15. THANK YOU