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FE 21-1 It is desired to transport oil (Sp-g. = 0.8) from tank 1 to tank 2, shown in the figure. Maximum operating flow is

FE 21-1

It is desired to transport oil (Sp-g. = 0.8) from tank 1 to tank 2, shown in the figure. Maximum operating flow is 300 GPM

image text in transcribed

Data: Pf = 0.5 psi/ft; 1HP=746W. For which 3 pumps are available, whose characteristic curves and efficiencies (Ef.) are:

image text in transcribed

It is requested:

a) (3 pts.) Make the arrangement of pumps in series or in parallel that satisfies the described system.

b) (2 pts.) Calculate the power of the pumps in HP necessary to satisfy the system.

c) (2 pts.) Using a graph of H vs Q, calculate the pressure drop of the control valve to be installed in the system to control the level of tank 1.

Please explain the equations and procedure thank you.

Bomba L=50ft. \begin{tabular}{|l|l|l|l|l|l|l|l|l|} \hline Q (GPM) & 20 & 40 & 80 & 120 & 160 & 200 & 240 & Ef. \\ \hline HB1 (PSI) & 225 & 210 & 180 & 135 & 80 & & & 85% \\ \hline HB2 (PSI) & 155 & 145 & 124 & 100 & 75 & 55 & & 80% \\ \hline HB3 (PSI) & 80 & 78 & 75 & 70 & 64 & 54 & 38 & 75% \\ \hline \end{tabular}

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