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Title: Monitoring System Uncertainty In Real-Time
Author: Sjoerd Diepen Mohammed Asraf Bin Jeinie
Source: 2016 South East Asia Flow Measurement Conference
Year Published: 2016
Abstract: In custody transfer it is of the upmost importance to know the amount of hydrocarbons that passes through a metering system, as this directly translates into a monetary value. Ideally, the exact amount of the quantity being passed from seller to buyer is assessed. However, all kind of (external) factors like installation effect s, product quality, wear and tear, calculation precision and others contribute to a level of uncer tainty. Buyer and seller acknowledge these uncertainties and assume the systems reading being correct, as long as the total system uncertainty remains under a certain limit value ty pically 1 % or less. During the design stage of the system, the uncertai nties are already modelled in an uncertainty budget. After commissioning, it will b e verified that the total uncertainty is indeed according to the budget and within the acceptable l imit value

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