Consider a heat exchanger made of thin copper tubes. Fins are attached to the outer surface of the tubes. The fins are made of copper and short. Convective heat transfer coefficients on the inner and outer surface of the tubes are 550 and 50 W/m2K, respectively. Total inner and outer surface area is 2 and 15 m2, respectively. What is the overall heat transfer coefficient based on the inner surface area (W/m2K)? a. 223 b. 130.4 c. 107.1 d. 29.73 e.
Heat Exchangers
Heat exchangers are the types of equipment that are primarily employed to transfer the thermal energy from one fluid to another, provided that one of the fluids should be at a higher thermal energy content than the other fluid.
Heat Exchanger
The heat exchanger is a combination of two words ''Heat'' and ''Exchanger''. It is a mechanical device that is used to exchange heat energy between two fluids.
Consider a heat exchanger made of thin copper tubes. Fins are attached to the outer surface of the tubes. The fins are made of copper and short. Convective heat transfer coefficients on the inner and outer surface of the tubes are 550 and 50 W/m2K, respectively. Total inner and outer surface area is 2 and 15 m2, respectively. What is the overall heat transfer coefficient based on the inner surface area (W/m2K)?
a.
223
b.
130.4
c.
107.1
d.
29.73
e.
1850
f.
0.0022
g.
166.7.
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