16. Water at a rate of 0.25 lbm/s flows in a vertical heated tube having a diameter of 0.5 inches. Pressure in the tube is 900 psia. Find the heat flux at a point where the mixture enthalpy is 640 Btu/lbm and the surface superheat is 6 F. [Ans.: q'" 97.6 kW/m2]. %D

16. Water at a rate of 0.25 lbm/s flows in a vertical heated tube having a diameter of 0.5 inches. Pressure in the tube is 900 psia. Find the heat flux at a point where the mixture enthalpy is 640 Btu/lbm and the surface superheat is 6 F. [Ans.: q'" 97.6 kW/m2]. %D

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.

Chapter6: Forced Convection Over Exterior Surfaces

Section: Chapter Questions

Problem 6.8P

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Question

16. Water at a rate of 0.25 lbm/s flows in a
vertical heated tube having a diameter
of 0.5 inches. Pressure in the tube is 900
psia. Find the heat flux at a point where
the mixture enthalpy is 640 Btu/lbm and
the surface superheat is 6 F. [Ans.: q"" =
97.6 kW/m2].

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