UKTN TNflow

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.