Question: Consider a water pipe. The radius is 5cm and length is 120m. Water enters the pipe at 5C and leaves at 6C. The ambient temperature

Consider a water pipe. The radius is 5cm and length is

Consider a water pipe. The radius is 5cm and length is 120m. Water enters the pipe at 5C and leaves at 6C. The ambient temperature is 30C. The heat transfer coefficient of the pipe is 10W/m2. The engineer wants to decrease the temperature difference between the exit and inlet to 0.2C. The insulation thickness is 3.5cm. Determine the thermal conductivity of the insulation material

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