Regarding reciprocating pumps
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I would like to ask fellow sailors: if a reciprocating pump (plunger pump) is used with media that have densities twice as different from each other, while keeping the power constant, what changes will occur in the flow rate and outlet pressure?
In my opinion, as long as vaporization or similar phenomena occur within the pump itself, the outlet pressure remains unchanged. PS: The outlet pressure of a reciprocating pump is determined solely by the pressure in the system downstream of it
The power can’t remain constant. Agree with what was said on the 2nd floor, as long as the motor can handle it. Both flow rate and pressure remain essentially unchanged. The power is doubled or halved.
The flow rate and outlet pressure of a reciprocating pump are independent of the properties of the fluid itself, and depend only on the stroke and reciprocating speed of the plunger.
The flow rate remains constant; it is related to the frequency stroke. The pressure remains constant