After cutting, one of the class 2 pumps in our facility has a flow rate of 18 tons per hour and an outlet pressure of 1.2 MPa
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A Class 2 pump in our facility, after being cut, has a flow rate of 18 tons per hour, an outlet pressure of 1.2 MPa, and a liquid density of 870 kg/m3. What is the shaft power required for this pump, and what capacity motor should be selected? ? ? ? ? ? ? ? ? ?
1 If a more comprehensive consideration is needed, factors such as the pump inlet pressure, the resistance in the inlet and outlet pipes, pump efficiency, temperature, and viscosity should also be taken into account. 2 Since the efficiency of this type of small pump is relatively low, assuming normal inlet pressure, a pump efficiency of 60%, a flow rate of 18 tons per hour, an outlet pressure of 1.2 MPa, and a liquid density of 870 kg/m3, the shaft power required by the pump is approximately 11 KW; therefore, a motor with a power rating of around 13 KW is necessary
The efficiency of this pump will not exceed 35%; the shaft power is around 14 kW, so an electric motor of 18.5 kW is required. If it isn’t operated continuously, a 15 kW motor can just manage to work
I really want to know the answer to this question too; could you provide some calculation formulas?