Changes in orifice plate differential pressure flow meters
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In the volume formula of the orifice plate differential pressure flow meter, the flow rate is inversely proportional to density. In our factory’s actual operations, the density increases despite no changes in temperature or pressure; yet the measured flow rate increases as well. I’m not sure why this happens – can anyone explain it?
I just checked the pressure guide tubes this afternoon, and they were all unobstructed with no signs of blockage. According to formula analysis, it can only be that the discharge coefficient also changed significantly when the composition changed; the reason is unclear.
I’ve been confused and hope someone can explain this. Since a reciprocating compressor is being used, it seems that the opening of the bypass valve is too large, based on that. After adjusting the components so that they were in proper condition, the flow rate returned to normal. I’m not sure if this is the right place to post this; if not, I’ll post it in another forum.
Is volumetric flow rate or mass flow rate being measured? Pressure and density have different effects on them