Flow calculation with known cv and pressure drop

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Karthick Soundarapandy
Karthick Soundarapandy on 20 Mar 2019
I am using simulink to calculate flow from known cv and pressure drop.
Cv=1.9
Pr.drop= 1.74 psi
Flow obtained from Simulink results to be 11.65 lpm
Working tempwerature to be 60 deg F
Flow_using_Cv calc.JPG
But flow from calculation using below formulae results with 10.46 lpm
Cv.JPG
Kindly suggest for the reson for variation.

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