Saturated refrigerant 134a flows in the evaporator tube at 2 °C. The evaporator is made of thin copper tube with d=1 cm outer diameter. Aluminum annular fins having a diameter of D=2.5 cm are attached to the surface of the pipe. The ambient is at 25°C and the heat transfer coefficient is h-40. a. Determine the heat loss per unit length of the evaporator tube, if fins are 0.5 mm thick and the fin density is 200 fins per meter. 0

Saturated refrigerant 134a flows in the evaporator tube at 2 °C. The evaporator is made of thin copper tube with d=1 cm outer diameter. Aluminum annular fins having a diameter of D=2.5 cm are attached to the surface of the pipe. The ambient is at 25°C and the heat transfer coefficient is h-40. a. Determine the heat loss per unit length of the evaporator tube, if fins are 0.5 mm thick and the fin density is 200 fins per meter. 0

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

3. Saturated refrigerant 134a flows in the evaporator tube at 2 °C. The
evaporator is made of thin copper tube with d=1 cm outer diameter.
Aluminum annular fins having a diameter of D=2.5 cm are attached
to the surface of the pipe. The ambient is at 25°C and the heat
transfer coefficient is h-40.
a. Determine the heat loss per unit length of the evaporator
tube, if fins are 0.5 mm thick and the fin density is 200 fins
per meter.
4. 3.142
-

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