Hot air at atmospheric pressure and 80°C enters an 8-m-long uninsulated square duct of cross section 0.2 m * 0.2 m that passes through the attic of a house at a rate of 0.15 m3/s . The duct is observed to be nearly isothermal at 60°C. Determine the exit temperature of the air and the rate of heat loss from the duct to the attic space.
Hot air at atmospheric pressure and 80°C enters an 8-m-long uninsulated square duct of cross section 0.2 m * 0.2 m that passes through the attic of a house at a rate of 0.15 m3/s . The duct is observed to be nearly isothermal at 60°C. Determine the exit temperature of the air and the rate of heat loss from the duct to the attic space.
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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Hot air at atmospheric pressure and 80°C enters an 8-m-long uninsulated
square duct of cross section 0.2 m * 0.2 m that passes through the attic
of a house at a rate of 0.15 m3/s . The duct is observed to be
nearly isothermal at 60°C. Determine the exit temperature of the air and the
rate of heat loss from the duct to the attic space.
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