Will the pump experience cavitation under these operating conditions, experts?
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There is a current operating condition in which the tank is under negative pressure, the liquid level at the pump inlet is lower than that in the storage tank, and the liquid inside the tank is supercooled. Is it intended to discharge the liquid under negative pressure? I’d like to ask if cavitation might occur Should I choose a positive displacement pump or a centrifugal pump? The height difference between the liquid in the tank and the pump inlet is less than 1 m
To determine whether cavitation will occur, one needs to compare the pressure at the pump inlet with the saturated vapor pressure of the medium; a calculation using Bernoulli’s equation will do. This should be a basic calculation for beginners.
As long as the liquid in the tank is subcooled, cavitation generally does not occur
Why generally does supercooling not lead to cavitation? Thank you so much!