The following data were obtained for fl ow of 208C water at 20 m3 /h through a badly
Chapter 6, Problem p6.59(choose chapter or problem)
The following data were obtained for fl ow of 208C water at 20 m3 /h through a badly corroded 5-cm-diameter pipe that slopes downward at an angle of 88: p1 5 420 kPa, z1 5 12 m, p2 5 250 kPa, z2 5 3 m. Estimate (a) the roughness ratio of the pipe and (b) the percentage change in head loss if the pipe were smooth and the fl ow rate the same
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