Cavitation in Centrifugal pump, NPSH available, NPSH required, Calculation of NPSH, NPSH3 

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Thanks !! NPSH r (Calculated by pump manufacturer) They continuously reducing the pressure of the resource tank and calculate NPSH, Once total dynamic head (H = hd -hs) reduces to 3%, That value to be considered as NPSH r

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Yes that is NPSH, Exactly.

@@chintanconcept thank you very much

what ??

I really appreciate your question Velocity = flowrate/area Usually in static pressure head calculation & NPSH calculation we ignore the velocity head term which indirectly affects total energy(also constant flowrate) is there. Actually NPSH = (Ps-Pv)/p*g - V2/2g but doesn’t affect on total values.(hardly in 0.0…) Hope it is clear

not yet

Hi It’s important to clarify that P= F/A represents how pressure is calculated, not how it changes within a fluid system. Here's how increasing pipe size can impact pressure within a fluid system: 1. Velocity: When you increase the size of a pipe while keeping the flow rate constant, the fluid velocity decreases. According to Bernoulli's principle, as the fluid velocity decreases, the pressure increases. So, in a larger pipe, the fluid exerts a higher pressure due to this reduction in velocity. 2. Volume: A larger pipe can hold more fluid volume, which might affect pressure if there are changes in flow rate or demand. However, the pressure exerted by the fluid itself is not directly related to the pipe size but rather to factors like fluid density, velocity, and external forces acting on the fluid.

That is stagnation pressure

kindly recheck 2.48

Have you checked at 2.48 ???