Assume that the pump performance characteristics shown in Fig. P7.78 are for a pump running at \(1200 \mathrm{rpm}\). Assuming that the pump head, \(h_{p}\), the pump impeller diameter, \(D\), and the flowrate, \(Q\), through the pump are the other relevant parameters, calculate the pump performance characteristics at speeds of \(1800 \mathrm{rpm}\) and \(2400 \mathrm{rpm}\). Neglect viscous effects.

Figure P7.78

Transcribed Image Text:

Head (ft) 200 T= 55F 150 100 50 0 0 25 50 75 100 125 150 Volume flowrate, Q (gal/min)