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In: Mechanical Engineering

Water at 35°C is pumped through a horizontal, 200-m-long, 30-mm-diameter tube at 0.25 kg/s. Over time,...

Water at 35°C is pumped through a horizontal, 200-m-long, 30-mm-diameter tube at 0.25 kg/s. Over time, a 2-mm-thick layer of scale of surface roughness e = 200 µ m is deposited on the interior tube wall. Determine the pressure drop from the entrance to the exit of the tube and the required pump power for the clean and fouled conditions.

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