Engineering, 20.08.2019 20:30 Krch1401

Air flows at a rate of 8500 ft^3/min in a duct with square cross section (2.5-ftx2.5-ft). the duct pressure drop is 1.1 in. of water per 1000 ft of length. find the duct friction factor and the average height of surface roughness.

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Air flows at a rate of 8500 ft^3/min in a duct with square cross section (2.5-ftx2.5-ft). the duct p...