Published July 27, 2021
| Version 1.0
Dataset
Open
EMUE-D4-2-OrificePlate
Description
The report shows how the uncertainty should be evaluated for a measurement from an orifice meter where the flowrate is evaluated using a discharge-coefficient equation based on data from a population of orifice meters: the orifice meter in service is not itself calibrated in a flowing fluid, but is similar (with permitted variability) to those on which the discharge-coefficient equation is based.
The data on which the discharge-coefficient equation in ISO 5167-2:2003 (the Reader-Harris/Gallagher (1998) Equation) is based are given in the uploaded dataset together with the analysis required by the report (to follow).
Files contained in the dataset are:
- D4-2_Report.pdf: Report “The uncertainty of the orifice-plate discharge coefficient”
- D4-2 LaTeX Source Files.zip: LaTeX files to be compiled in order to produce D4-2_Report.pdf.
- D4-2_Figures.zip: figures/graphs from the report, including data points.
- EMUE-D4-2-OrificePlate.xlsm: Excel spreadsheet containing all data associated with the example.
Notes
The discharge-coefficient data are described in Chapter 5 of Reader-Harris, M. J., Orifice plates and Venturi tubes, Springer, 2015, which gives references to the original data.