How should gas flow rate be measured
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I’ve never worked with meters before. We have a location here that uses helium, and we need to keep track of how much is used each day. What kind of meter should we use? Is the flow rate of gases calculated based on mass, rather than using volume as in the case of liquids?
Orifice plates, vortex flow meters, rotameters, etc., can be used. Gas density changes significantly with temperature and pressure, and flow measurement is generally carried out on a standard cubic volume basis.
For metal rotor flowmeters, gas is measured on a standard cubic basis.
In principle, vortex flowmeters, mass flowmeters, and rotameters can all accurately measure flow rate.
In principle, vortex flowmeters, mass flowmeters, and rotameters can all accurately measure flow rate.
Volumetric flowmeters require temperature and pressure compensation.