Pump inlet and outlet pressure
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In the pump operating conditions table provided by the process engineering team to the systems engineering team, how should the inlet and outlet pressures of the pump be filled in? Should the pressure drop caused by devices such as valves be taken into account at this time? For example, if there is a control valve at the pump outlet, then when the process engineering team sets the pressure at the pump outlet, does it need to take into account the pressure drop caused by that control valve? And how should it be taken into account?
In the pump operating conditions table provided by the process engineering team to the systems engineering team, the inlet pressure of the pump can be directly set as the maximum pressure of the fluid in the inlet pipeline. The outlet pressure of the pump should be calculated as the desired final pressure plus the sum of the pressure losses due to pipelines, fittings, valves, etc.; this value is then multiplied by a scaling factor to determine the actual outlet pressure of the pump.
You need to calculate the inlet pressure of the pump, which is the static pressure in the storage tank plus the pipeline resistance. The outlet pressure of the pump corresponds to the pressure required in the subsequent pipelines (including pipeline resistance as well as the potential and kinetic energy of the fluid)