Question

Water with density ρ = 1000 kg/m3 flows through a pump, with a rotor diameter of30 cm at a rate of 163 m3/h. The pump operates at 1600 rpm, and its efficiency isηp = 0.78. The pump work is 410.5 J/kg. If a second pump in the same series has a diameter of 20 cm and operates at 3200 rpm, at the condition of the same efficiency, find (a) the mass flow rate, (b) the total pressure increase across it, and (c) the input power.​

Answer 1

Answer:

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