$($Problem $4\mathrm{.}9)$ You live in a district with a water consumption of around $400$ liters per person per

day. This corresponds to a need for $Q=0\mathrm{.}125\frac{m^3}{s},$ or $4\mathrm{.}42f{t}^{{?}^{?}}\frac{3}{s}$ of water pumped $75\%$ of the

time. At a $70\%$ efficiency, the pump brings the water $H=120ft$ above the source in $L=2,500ft$

long pipe as shown in the figure. Your company $($JJ engineering$)$ is asked for a preliminary design

of a single pipe and pump system. Your supervisor Jan suggests that you assume $f=0\mathrm{.}02$ and

neglect minor losses. Use a spreadsheet to solve for various pipe diameters.

a$.$ Jan asks you to estimate the optimum materials cost of each alternative based on a $2014$

cost table for galvanized iron pipe $($below$).$ The cost of pumps is $$$$200$ per horsepower,

and there is an assumed fixed base cost of $$150,000$ for the construction. Assume $5\%$

annual inflation rate on all prices to project $2014$ costs into the current year.

CE $357$ Engineering Hydraulics

b$.$ For the first meeting with your client, Jan has to travel and she asks you to meet your

very important client and elected representative, Jill. At the meeting, Jill asks you to

prepare a two$-$page summary of your recommendation for presentation at the next

public meeting.

i$.$ Notes: $(1)$ Your summary should include any necessary figures that depict any

calculations necessary to support your design. $(2)$ You will also need to turn in