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
Refrigeration and Air Conditioning Technology (MindTap Course List)
8th Edition
ISBN:9781305578296
Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Chapter40: Typical Operating Conditions
Section: Chapter Questions
Problem 9RQ: The evaporator design temperature may in some cases operate at a slightly ____(higher or lower)...
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