Compare the frictional pressure drop, due to skin friction, of air and water for a smooth circular pipe of inside diameter D and length L. For this comparison, consider the mass flow rate of air to be equal to the mass flow rate of water [Ans.: Using the McAdams’ correlation for f we find, ∆Pa/∆Pw = (ρw/ρa)1.2]. 9. Compare the frictional pressure drop, due to skin friction, of air and water for asmooth circular pipe of inside diameter D and length L. For this comparison,consider the mass flow rate of air to be equal to the mass flow rate of water.[Ans.: Using the McAdams’ correlation for f we find, APJAP, = (P,/pa)"²].

Write the expression of pressure drop in smooth circular pipe. ∆P=fLQ212D5

9. Compare the frictional pressure drop, due to skin friction, of air and water for a smooth circular pipe of inside diameter D and length L. For this comparison, consider the mass flow rate of air to be equal to the mass flow rate of water. [Ans.: Using the McAdams’ correlation for f we find, APJAP„ = (P,/pa)²].

9. Compare the frictional pressure drop, due to skin friction, of air and water for a smooth circular pipe of inside diameter D and length L. For this comparison, consider the mass flow rate of air to be equal to the mass flow rate of water. [Ans.: Using the McAdams’ correlation for f we find, APJAP„ = (P,/pa)²].

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 7.39P

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