Method and apparatus for determining liquid flow rates

Details Method and apparatus for determining liquid flow rates Method and apparatus for determining liquid flow rates

G - Physics

01

F

73/132, 354/31,

G01F 1/56 (2006.01)

Patent

CA 1151297

ABSTRACT There is provided a method of determining the total inflow of a liquid through a liquid-flow system in which the liquid enters a sump cavity and is pumped out of the sump cavity by pump means. Computing means calculates an on-going total inflow volume for the liquid by i) adding in the sump cavity volume between a lower and upper limit level each time the liquid surface, rises to the upper limit level, and ii) determining the inflow rate over at least a portion of the filling time just described and extrapolating this inflow rate over the time when the pump means is pumping, such extrapolated value being added in to the on-going total inflow volume.

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