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How to convert gpm into inches of eater.I nerd formula with example so
pls help me.
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Answer Posted / carl_ellis
The pressure differential (h) [inches of water column]
developed by a differential pressure flow element is
measured, and the volumetric flow rate (Q) [gpm] can be
calculated using the following generalized formula:
Q = kA(h/D)^0.5
k is the discharge coefficient of the element (which also
reflects the units of measurement), A is the cross-sectional
area of the pipe's opening, and D is the density of the
flowing fluid. The discharge coefficient k is influenced by
the Reynolds number (see Figure 1-5) and by the "beta
ratio," the ratio between the bore diameter of the flow
restriction and the inside diameter of the pipe.
Nothing can be determined from only 2 data, volume in gpm
and DP in inches w.c. There is insufficient data and
probably insufficient attention in the classroom to think
that one converts to the other.
Carl Ellis
Measure First
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