You must select a pump to transfer an organic liquid with a viscosity of $5 mathrm{cP}$ and
Question:
You must select a pump to transfer an organic liquid with a viscosity of $5 \mathrm{cP}$ and $\mathrm{SG}$ of 0.87 at a rate of $1000 \mathrm{gpm}$ through a piping system that contains $1000 \mathrm{ft}$ of $8 \mathrm{in}$. sch 40 pipe, 4 globe valves, 16 gate valves, and 43 std $90^{\circ}$ elbows. The discharge end of the piping system is $30 \mathrm{ft}$ above the entrance, and the pressure at both ends is 10 psia.
(a) What pump head is required?
(b) What is the hydraulic horsepower to be delivered to the fluid?
(c) Which combination of pump size, motor speed, and impeller diameter from the pump charts in Appendix $\mathrm{H}$ would you choose for this application?
(d) For the pump selected, what size motor would you specify to drive it?
(e) If the vapor pressure of the liquid is 5 psia, how far directly above the liquid level in the upstream tank could the pump be located without cavitating?
Step by Step Answer:
Chemical Engineering Fluid Mechanics
ISBN: 9781498724432
3rd Edition
Authors: Ron Darby, Raj P Chhabra