Options
Modeling of the flow comparator prototype as new primary standard for high pressure natural gas flow metering
Citation Link: https://doi.org/10.15480/882.2672
Publikationstyp
Conference Paper
Date Issued
2019-03
Sprache
English
Author(s)
Institut
TORE-DOI
TORE-URI
First published in
Number in series
157
Start Page
671
End Page
678
Citation
13th International Modelica Conference, Regensburg 157: 671–678 (2019-03)
Contribution to Conference
Publisher DOI
Publisher
Univ.
The German national metrological institute, Physikalisch-Technische Bundesanstalt, is developing a new concept for volumetric primary standard to calibrate high pressure gas flow meters. The TUHH is supporting these R&D activities with its competence to elaborate computational models for detailed analysis of complex mechanical systems including fluid flow aspects. The new primary standard is based on a actively driven piston prover to measure the gas flow rate using the time the piston needs to displace a defined enclosed volume of gas in a cylinder.
A computational model written in Modelica R is developeto investigate the Flow Comparator’s dynamic behavior. Validation of the model shows good compliance of the piston velocity and differential pressure at the piston in the model with measured data. With this model the control voltage trajectory can be optimized to increase the available measuring time and it allows to gather detailed information about pressure and temperature development at arbitrary chosen locations in the system with high time resolution.
A computational model written in Modelica R is developeto investigate the Flow Comparator’s dynamic behavior. Validation of the model shows good compliance of the piston velocity and differential pressure at the piston in the model with measured data. With this model the control voltage trajectory can be optimized to increase the available measuring time and it allows to gather detailed information about pressure and temperature development at arbitrary chosen locations in the system with high time resolution.
Subjects
modeling of multi-domain physical systems
flow comparator
high pressure natural gas flow metering
linear motor
optimization
DDC Class
620: Ingenieurwissenschaften
Loading...
Name
ecp19157069.pdf
Size
2.98 MB
Format
Adobe PDF