Use a spreadsheet to collect the data and perform the NPSHa calculations. The columns should contain the parameters needed to calculate NPSHa over the time of the transient. Spreadsheet rows ...

Then you’ve got your available NPSH. I learned how to calculate this yesterday.” Available NPSH = (P1 + PA) – (VP) × 2.31 ÷ sp gr, where NPSH is measured in feet, P1 = pressure at pump ...

2. Good correlation with theory. The proposed simplified calculations to determine NPSH in the deaerator system give a close, conservative estimate of the more analytic approach described in the ...