For the conditions indicated in Prob. 7, prepare a log-log plot of fluid velocity in feet per second versus optimum economic pipe diameter in inches. The plot should cover a fluid-velocity range of 1 to 100 ft/s and a pipe-diameter range of 1 to 10 in.
Prob. 7
Prepare a plot of optimum economic pipe diameter versus the flow rate of fluid in the pipe under the following conditions:
Costs and operating conditions ordinarily applicable in industry may be used.
The flow of the fluid may be considered as in the turbulent range.
The viscosity of the fluid may range from 0.1 to 20 centipoises.
The plot is to apply for steel pipe.
Express the diameters in inches and use inside diameters.
The plot should cover a diameter range of 0.1 to 100 in.
Express the flow rate in 1000 lb/h.
The plot should cover a flow-rate range of 10 to 100,000 lb/h.
The plot should be presented on log-log coordinates.
One line on the plot should be presented for each of the following fluid densities:
100, 50, 10, 1, 0.1, 0.01, and 0.001 lb/ft3