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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.

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.

Elements Of Electromagnetics
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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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 -
Transcribed Image Text: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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