Engineering, 20.02.2020 22:56 erik1franks
Indoor waterfalls are installed in commercial centers and private houses to offer a refreshing view, humidity and a pleasant sound effect. You are asked to choose water pumps for a new indoor waterfall project. The submersible pumps are to be installed in a water reservoir and connected by flexible hoses to the top of the 3 m-high waterfall. The interior designer estimates that a water flow rate of 1500 liters per minute is required for an optimum effect and 4 identical water pumps are needed, installed at equal separations. Standard pumps have the same inlet and outlet crosssections.
(a) Determine the power rating of each of the 4 identical pumps, assuming 95% efficiency.
(b) What is the change in flow power between the inlet and outlet of the pump?
(c) If the inlet pressure is 1 atm, what is the pressure directly at the outlet of each pump?
Answers: 3
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