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Published byReynard Wade Modified over 6 years ago
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Comparison between Serrated & Notched Serrated Heat Exchanger Fin Performance
Presented by NABILA RUBAIYA
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Basics of Heat Exchanger
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Plate Fin Heat Exchanger
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Different Types of Plate Fin
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Serrated Plate fin
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Notched Serrated Plate Fin
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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
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Desired Performance Temperature difference Pressure drop
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Pressure Drop Result (Serrated)
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Pressure Drop Result (Notched Serrated)
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Air Outlet Temperature (Serrated)
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Air Outlet Temperature (Notched Serrated)
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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
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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
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THANK YOU
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