$14-8$ Lab Experiment $14$ Centrifugal Pump Network

Questions for Discussion

On a building construction site you need to deliver water frem street level to the fifth floor to supply a cement mortar mixing operation. Assuming that you will use the $2-$hp centrifugal pump shown in Fig. $14\mathrm{.}4,$ estimate the discharge of the hose. State any assumptions and show all work.

According to the table, a $100ft$ building at $2-$hp pumpwill need a discharge of $50ga\frac{l}{m}in$

$2.$ You are a firefighter arriving on the scene of a vacant burning building with a tanker truck. You estimate the fire is at a height of $115-ft$ and you have two $3-$hp pumps at your disposal $($see the performance curve in Fig $14\mathrm{.}4).$ Assuming the fundamental relationships depicted in Fig. $14\mathrm{.}5$ hold, determine the optimum configuration $($parallel or series$)$ to deliver the maximum amount of water to help extinguish the fire. Also, estimate that flow rate. Ignore friction loss and show all work.