Indirect measurement of flow of liquid pumped with pump packages

Abstract

This paper discusses some research results for indirect measurement methods for pump packagesbased on their head-capacity curves. The paper shows the results of experimental research intoindirect measurement by approximation of vertical lift performance of a pump package with algebraicpolynomials of 2nd and 3rd order illustrating their applicability to solution of tasks pertaining toretrospective estimation of polynomial coefficients for the vertical lift performance approximation.Values of relative errors for indirect measurement of transferred liquid flow with such polynomialsare given.