Hot water (specific heat of 4.18 Kj/kgK) at 66C is flowing through a metal pipe (6 m long, 2 cm ID, 2.75 OD, thermal conductivity of 4.7 W/mK). The pipe is directly under an HVAC vent, and air at 21C is being blown over the pipe. This results in a conductive heat transfer coefficient of 129 W/m²K. If the convective heat transfer coefficient between the water and the pipe is 350 W/m?K, what is the overall heat transfer coefficient? What is the rate of heat 5. transfer from the water to the air?
Hot water (specific heat of 4.18 Kj/kgK) at 66C is flowing through a metal pipe (6 m long, 2 cm ID, 2.75 OD, thermal conductivity of 4.7 W/mK). The pipe is directly under an HVAC vent, and air at 21C is being blown over the pipe. This results in a conductive heat transfer coefficient of 129 W/m²K. If the convective heat transfer coefficient between the water and the pipe is 350 W/m?K, what is the overall heat transfer coefficient? What is the rate of heat 5. transfer from the water to the air?
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:Hot water (specific heat of 4.18 Kj/kgK) at 66C is flowing through a metal pipe (6
m long, 2 cm ID, 2.75 OD, thermal conductivity of 4.7 W/mK). The pipe is directly under an
HVAC vent, and air at 21C is being blown over the pipe. This results in a conductive heat
transfer coefficient of 129 W/m²K. If the convective heat transfer coefficient between the water
and the pipe is 350 W/m²K, what is the overall heat transfer coefficient? What is the rate of heat
5.
transfer from the water to the air?
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