The problem of measuring fluid flow rate
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When measuring gas flow rate, if the gas contains liquid (such as water), will the measured gas flow rate be higher or lower, or will it remain unaffected? On the other hand, what happens if there is gas present in the liquid flow being measured?
When measuring liquid flow, if there is gas present, the instantaneous flow rate will fluctuate, but the cumulative amount can be trusted! If the gas contains liquid, then it should be larger! In my opinion, it would be better if the original poster mentioned what is used to measure gas flow – a orifice plate?
If the mixture ratio meets the limit requirements of the mass flow meter, the measurement result is accurate; if it exceeds the limit, it’s hard to say. If other flowmeters that cannot measure the mixture’s flow rate are used, the results are uncertain.
When measuring a gas that contains liquid, the density of the gas stream will increase, resulting in higher measurement values. When measuring liquids, if there is gas present in the liquid, its density decreases, and the measurement result will be lower.
If the mixture ratio meets the limit requirements of the mass flow meter, the measurement result is accurate; if it exceeds the limit, it’s hard to say. If other flowmeters that cannot measure the mixture’s flow rate are used, the results are uncertain.