2 In a test of the centrifugal pump shown in Fig. P11.12, the following data are taken
Chapter 11, Problem p11.12(choose chapter or problem)
2 In a test of the centrifugal pump shown in Fig. P11.12, the following data are taken: p1 5 100 mmHg (vacuum) and p2 5 500 mmHg (gage). The pipe diameters are D1 5 12 cm and D2 5 5 cm. The fl ow rate is 180 gal/min of light oil (SG 5 0.91). Estimate (a) the head developed, in meters, and (b) the input power required at 75 percent effi ciency.p2 5500 kPa, z2 5 4 m, and V2 5 3 m/s. How much poweris required if the motor effi ciency is 75 percent?P11.12(2)65 cm(
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