A 10 m long thin-walled stainless steel tube of diameter 15 mm is used to sterilize pharmaceutical products by heating it from 25 °C to 85 °C. A uniform heat flux is maintained on the outer surface of the tube by an electric resistance heater wrapped around it. If the flow rate of the liquid is 0.15 m/s, find the required heat flux. Is the flow in the tube laminar or turbulent? Assuming the fluid exits the tube with a fully developed velocity and temperature profile, determine the tube surface temperature at the exit. Explain the reasoning for assuming that the flow is fully developed.
A 10 m long thin-walled stainless steel tube of diameter 15 mm is used to sterilize pharmaceutical products by heating it from 25 °C to 85 °C. A uniform heat flux is maintained on the outer surface of the tube by an electric resistance heater wrapped around it. If the flow rate of the liquid is 0.15 m/s, find the required heat flux. Is the flow in the tube laminar or turbulent? Assuming the fluid exits the tube with a fully developed velocity and temperature profile, determine the tube surface temperature at the exit. Explain the reasoning for assuming that the flow is fully developed.
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Transcribed Image Text:A 10 m long thin-walled stainless steel tube of diameter 15 mm is used to
sterilize pharmaceutical products by heating it from 25 °C to 85 °C. A
uniform heat flux is maintained on the outer surface of the tube by an
electric resistance heater wrapped around it. If the flow rate of the liquid
is 0.15 m/s, find the required heat flux. Is the flow in the tube laminar or
turbulent? Assuming the fluid exits the tube with a fully developed
velocity and temperature profile, determine the tube surface temperature at
the exit.
Explain the reasoning for assuming that the flow is fully developed.
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