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I have a case of one water injection header with 3 water injection riser / pipes attaced to it.
We have a flowmeter before the header, so we know the total flowrate. Assume the flowmeter is at 5% uncertainty.
Two of the risers/pipes has flow meters attached to it. Assume that each flow meter is at 5% uncertainty.
The third riser/pipes flow rate is gained by inferential methods, i.e.,
3rd Riser Flow rate = Total Flow rate - (Summation of flow rate on the other two pipes/risers)
May question is, what is the uncertainty of the measurement for this 3rd riser? How do we do it?
Does the 3rd riser measurement uncertainty = 5% + 5% + 5% = 15%?
Looking forward for your answers & thanks in advance,
We have a flowmeter before the header, so we know the total flowrate. Assume the flowmeter is at 5% uncertainty.
Two of the risers/pipes has flow meters attached to it. Assume that each flow meter is at 5% uncertainty.
The third riser/pipes flow rate is gained by inferential methods, i.e.,
3rd Riser Flow rate = Total Flow rate - (Summation of flow rate on the other two pipes/risers)
May question is, what is the uncertainty of the measurement for this 3rd riser? How do we do it?
Does the 3rd riser measurement uncertainty = 5% + 5% + 5% = 15%?
Looking forward for your answers & thanks in advance,