v cone flow meter working principle
The V-cone flowmeter is a differential pressure flowmeter. Its theory is based on Bernoulli’s theorem of mutual conversion of energy in a closed pipeline. Under the condition of stable flow, the flow rate in the pipeline is proportional to the square root of the differential pressure. That is: △P=P1-P2
In the formula:
- β-diameter ratio, D-pipe inner diameter, mm;
- d-cone outer diameter, mm;
- Q-flow rate m3/h;
- k-Outflow coefficient, dimensionless, varies with different flow meters;
- E-Gas expansion coefficient, dimensionless, E=1 in non-compression
- applications.
- △P-differential pressure Pa,
- ρ-fluid density kg/m3;