Nitrogen at 30°C and atmospheric pressure enter a triangular duct 0.02 m on each side at a rate of 4x104 kg/s. If the duct temperature is uniform at 200°C, estimate the bulk temperature of the nitrogen 2 m and 5 m from the inlet. For laminar flow; Nu, = 2.47; for turbulent flow; Nu̟h 0. 023Re,0.8 Pr0.3 %3D

Nitrogen at 30°C and atmospheric pressure enter a triangular duct 0.02 m on each side at a rate of 4x104 kg/s. If the duct temperature is uniform at 200°C, estimate the bulk temperature of the nitrogen 2 m and 5 m from the inlet. For laminar flow; Nu, = 2.47; for turbulent flow; Nu̟h 0. 023Re,0.8 Pr0.3 %3D

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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Question

Nitrogen at 30°C and atmospheric pressure enter a triangular duct 0.02 m on each side at a rate of
4x104 kg/s. If the duct temperature is uniform at 200°C, estimate the bulk temperature of the
nitrogen 2 m and 5 m from the inlet.
For laminar flow; Nup = 2.47;
for turbulent flow; Nuµb
0. 023Rep
0.8
*Pr0.3

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