What is the suction specific speed for the pump that is operating under the conditions given in Problem 14.15? Is this a safe operation with respect to susceptibility to cavitation?

Data from Problem 14.15

The pump used in the system shown has the characteristics given in Fig. 14.8. What discharge will occur under the conditions shown, and what power is required?

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100 10 80 Power Efficiency 60 40 Нead 20 N = 690 rpm n= 11.5 rps D = 35.6 cm 0.05 0.10 0.15 0.20 0.25 0.30 Discharge, m'/s Head, m; power, kW Efficiency, percent