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HW$3.$pdf

HW $3$

CE $552$

$3.)$ Determine the operating conditions $(Hp$ and $Q)$ for two different pumps that operate in parallel in order to connect two cylindrical water tanks under the following conditions.

System Information:

The total head loss coefficient of the system is $5\mathrm{.}6{10}^{-5}f\frac{t}{gp{m}^2}.$

Tanks are both cylindrical with a diameter of $75ft$ and height of $50ft.$

Upper tank operates between a tank head of $10ft$ to $50ft.$

Lower tank operates at a constant tank head of $50ft.$

Pump station is $50ft$ below the base of the source tank.

Answer the Following Questions:

Upper and lower limits in terms of the flowrate delivered by each pump and head that each pump delivers based upon the tank operating levels. Choose two different pumps from the Gorman Rupp Pump catalog.

The estimated time to fill the upstream tank assuming the lowest possible tank head is $10ft.$ Provide a rationale for how you computed this time.

Cost of filling the upstream tank assuming energy costs are approximately $$\frac{0\mathrm{.}10}{kW-hr}.$

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