For water flowing in a pipe of 8 inches diameter at 65 oC and 0.01 ft3/s, what will be the entry length (Le) needed for water flow to be described as fully developed flow? What does that tell you about the length of the tube you should select in your design?

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.
Chapter5: Analysis Of Convection Heat Transfer
Section: Chapter Questions
Problem 5.4P: 5.4 Evaluate the Stanton number for flow over a tube from the following data: , , , , .
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For water flowing in a pipe of 8 inches diameter at 65 oC and 0.01 ft3/s, what will be the entry length (Le) needed for water flow to be described as fully developed flow? What does that tell you about the length of the tube you should select in your design?

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