EGN_3358_Notes_Ch_7_Part 2

EGN_3358_Notes_Ch_7_Part 2 - EGN 3358 Thermo-Fluids-Heat...

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1 EGN-3358 – Thermo-Fluids-Heat Transfer EGN 3358 Thermo-Fluids-Heat Transfer Chapter 7: Internal Flows – Fluid Viscous and Thermal Effects Part 2

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2 EGN-3358 – Thermo-Fluids-Heat Transfer Energy Losses in Internal Flows Example:
3 EGN-3358 – Thermo-Fluids-Heat Transfer Energy Losses in Internal Flows … Example:

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4 EGN-3358 – Thermo-Fluids-Heat Transfer Energy Losses in Internal Flows Example:
5 EGN-3358 – Thermo-Fluids-Heat Transfer Energy Losses in Internal Flows … Example:

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6 EGN-3358 – Thermo-Fluids-Heat Transfer 7.4: Heat Transfer in Ducts Convection Heat Transfer Coefficient : is R radius of duct circular a in flowing stream fluid a of content energy total The = R p enthalpy dr Tr uc h m 0 2 πρ
7 EGN-3358 – Thermo-Fluids-Heat Transfer Heat Transfer in Ducts fluid a of content energy the describing temp. average the : Define b T p R p p b Vc R dr Tr uc c m h m T ρ π πρ 2 0 2 = = : constant are properties the If V R dr uTr T R b 2 0 2 =

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8 EGN-3358 – Thermo-Fluids-Heat Transfer Heat Transfer in Ducts : t coefficien fer heat trans local Define ( 29 b w x x
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EGN_3358_Notes_Ch_7_Part 2 - EGN 3358 Thermo-Fluids-Heat...

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