Wet Gas Flow Meter Uncertainty
Wet Gas Flow Meter Uncertainty
(OP)
Dear all,
I beleive that taking the accuracy required for the Wet Gas meter will be called the uncertainty. Is it the correct practise?
How do we determine an accuracy of a Wet Gas meter since it's two phase. Meter that works fine with gas usually doesn't do so for liquid. I'm going to take the gas measurement accuracy to be the accuracy of the Wet Gas meter, is it okey?
Please guide me,
Many Thanks
I beleive that taking the accuracy required for the Wet Gas meter will be called the uncertainty. Is it the correct practise?
How do we determine an accuracy of a Wet Gas meter since it's two phase. Meter that works fine with gas usually doesn't do so for liquid. I'm going to take the gas measurement accuracy to be the accuracy of the Wet Gas meter, is it okey?
Please guide me,
Many Thanks





RE: Wet Gas Flow Meter Uncertainty
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RE: Wet Gas Flow Meter Uncertainty
RE: Wet Gas Flow Meter Uncertainty
"Accuracy" is a nebulous term that really has no place technical discussions.
"Uncertainty" means "You don't know". If your uncertainty is 1% and the flow rate calculates to 100 MCF/d then all you know for certain is that the actual number is between 99 and 101 MCF/d. Trying to imply an "accuracy" value to an intermediate number within that range is simply wrong and wildly inappropriate.
In order to get acceptable uncertainty in an inherently multi-phase system you have to either lower your expectations (problem is that you won't have a good basis for deciding what to lower them to) or remove the liquid prior to measurement. There is not a third option.
David
RE: Wet Gas Flow Meter Uncertainty
anyway still we need to have a direction when dealing with this wet gas measurement?
RE: Wet Gas Flow Meter Uncertainty