Relationship between pump outlet pipeline and pump pressure
Thread Content
For a pump with a capacity of 217 m3/H and a head of 49 mH, the pump outlet pipeline was originally designed to be 6 inches in diameter; it has now been changed to 10 inches. By how much will the pump outlet pressure decrease? By how much does the flow rate decrease? Could some expert help with the calculation?
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6 inches 3.41 m/s 10 inches 1.23 m/s
The pump outlet pressure is related to the total resistance loss in the pump outlet pipeline; when the flow rate remains constant, an increase in pipe diameter results in a decrease in flow velocity, which in turn reduces the resistance loss in the straight sections of the pipeline and lowers the pump outlet pressure. Calculation is not possible due to insufficient known information.