Two air streams are separated by a thin, perfectly insulating wall. One air stream has a freestream temperature of 15°C and flows with a velocity of 15 m/s, while the other air streamhas a free stream temperature of 50°C and flows with a velocity of 5 m/s. Heat is transferredbetween the air streams via a 4-mm-diameter, 80-mm-long pin fin made of Alloy 195 castaluminum. Determine the rate of heat transfer between the fluids when the rod is inserted1 = 30 mm into the cooler air stream.Too 15°C, V = 15 m/s=AirD = 4 mmL = 80 mm1AirToo = 50°C, V = 5 m/s

Determine the heat transfer rate of the medium, the following details given from the left end from…

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Engineering

Mechanical Engineering

Determine the rate of heat transfer between the fluids when the rod is inserted into the cooler air stream.

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

Two air streams are separated by a thin, perfectly insulating wall. One air stream has a free
stream temperature of 15°C and flows with a velocity of 15 m/s, while the other air stream
has a free stream temperature of 50°C and flows with a velocity of 5 m/s. Heat is transferred
between the air streams via a 4-mm-diameter, 80-mm-long pin fin made of Alloy 195 cast
aluminum. Determine the rate of heat transfer between the fluids when the rod is inserted
1 = 30 mm into the cooler air stream.
Too 15°C, V = 15 m/s
=
Air
D = 4 mm
L = 80 mm
1
Air
Too = 50°C, V = 5 m/s

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Step 2: Calculate convective heat transfer, mass, area, volume

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Step 3: calculate time constant

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Step 4: calculate temperature of the solid body

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