Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN: 9780190698614
Author: Sadiku, Matthew N. O.
Publisher: Oxford University Press
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Nitrogen at 1 atm and 100 °C enters into an equilateral triangular cross section
duct of each side 25 cm long with an average velocity of 10 m/s. The duct wall is
maintained at a constant surface temperature of 800 °C and the outlet mean
temperature is 300 °C.
a) What is the bulk mean temperature Tm and Reynolds number Re?
b) What is the convection heat transfer coefficient h?
c) Assuming smooth tube, estimate the length L of the duct and the
pumping power required.
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Transcribed Image Text:Nitrogen at 1 atm and 100 °C enters into an equilateral triangular cross section duct of each side 25 cm long with an average velocity of 10 m/s. The duct wall is maintained at a constant surface temperature of 800 °C and the outlet mean temperature is 300 °C. a) What is the bulk mean temperature Tm and Reynolds number Re? b) What is the convection heat transfer coefficient h? c) Assuming smooth tube, estimate the length L of the duct and the pumping power required.
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