I have a question: what will be the outcome if the inlet and outlet of a centrifugal pump are connected and then the pump is started?
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The master said it was fine, but I don’t really believe it; I feel like the energy will keep increasing
Driving for a short time might be fine. The head will be exactly equal to the pipeline resistance; it should be very small, while the flow rate will be relatively high. In this state, equilibrium is achieved or an overcurrent occurs. If a stable state is reached, the temperature of the entire system will gradually rise due to the continuous work done by the pump, if the heat dissipation is not sufficient to counteract the heat generated.
It should be fine; we have such connections on site. As for the principles, let those more knowledgeable people downstairs explain them!
It’s fine for a short period of time, but not for a long time. Applying force to the medium for an extended duration will cause its temperature to rise, leading to vaporization and vibration, at least that’s my guess
If the pipeline is short, the temperature will rise, making cavitation more likely