Physical properties of the fluid
Differential pressure flowmeters
Archive REF: R2220 V3
Physical properties of the fluid
Differential pressure flowmeters

Author : Claude GAILLEDREAU

Publication date: September 10, 2008 | Lire en français

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4. Physical properties of the fluid

4.1 Parameters required to calculate the primary element

Determining the flow rate of a fluid using a depressurizer requires knowledge of its density at flow conditions upstream of the device and, in the case of a gas or vapour, its isentropic coefficient. The viscosity of the fluid is also required, whatever its type.

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4.2 Density determination

Determining the density of the fluid is often the most laborious step in a primary element calculation, unless of course the process engineers provide it....

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