Someone replace the 250-foot tubing refrigerator's water tank.
ID = 0.17", OD = 0.25".
Polyethylene tube does have a thermal conductivity of 0.44 W/m.K.
Water enters the refrigerator at room temperature (25 °C), that is 4 °C.
The tube has a 2 L/min flow rate.
If the flow of water comes in at room temperature, calculate:
1-temp of water after it passed through250 feet of polyethylene tubing and leaves the refrigeration.
2-Plot the water's temp in two scenarios:
1. The relations between tubing length and water outlet temp.
2. The relationship between flow rate and water outlet temp.

Answer rating: 100% (QA)

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