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- 2024-11-05
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 TNflow is addressing the needs of engineers dealing with fluid flow measurement by means of pressure differential devices. TNflow may be used to calculate:- primary device diameter (bore diameter) for declared full scale flowrate and related value of differential pressure;
- differential pressure for declared bore diameter and flowrate;
- flowrate for declared bore diameter and differential pressure.
Any of the above calculations is supplemanted by:- diameters corrections for thermal expansion;
- bounds of measurement range calculations;
- upper limit of upstream pipe roughness calculations;
- upper limit of sharp edge radius calculations;
- required upstream and downstream straight lengths calculations;
- uncertainty analysis of flowrate measurement at a single point and in the entire measurement range;
- bias "linear scale" error analysis.
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