Ethylene glycol at 40°C flows over a heated plate very wide, 6 m long, at velocity of 0.04 m/s. For a temperature = 90°C, determine: 1- the thickness of the hydrodynamic boundary layer at the end of the plate 2- the thickness of the thermal boundary layer at the end of the plate 3- the local and average heat transfer coefficient at the end of the plate 4- the total heat flux transferred from the heated surface.
Ethylene glycol at 40°C flows over a heated plate very wide, 6 m long, at velocity of 0.04 m/s. For a temperature = 90°C, determine: 1- the thickness of the hydrodynamic boundary layer at the end of the plate 2- the thickness of the thermal boundary layer at the end of the plate 3- the local and average heat transfer coefficient at the end of the plate 4- the total heat flux transferred from the heated surface.
Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)
8th Edition
ISBN:9781305387102
Author:Kreith, Frank; Manglik, Raj M.
Publisher:Kreith, Frank; Manglik, Raj M.
Chapter7: Forced Convection Inside Tubes And Ducts
Section: Chapter Questions
Problem 7.38P
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Ethylene glycol at 40°C flows over a heated plate very wide, 6 m long, at velocity of 0.04 m/s. For a temperature = 90°C, determine:
1- the thickness of the hydrodynamic boundary layer at the end of the plate
2- the thickness of the thermal boundary layer at the end of the plate
3- the local and average heat transfer coefficient at the end of the plate
4- the total heat flux transferred from the heated surface.
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