| Zugriffsnummer | 42838 |
| Dokumenttyp | Konferenzartikel |
| Peer Review | unbekannt |
| Sprache | Englisch |
| Titel | Modeling of the Flow Comparator as calibration device for high pressure natural gas flow metering in Modelica |
| Autor(in); Institution |
Singh, Sukhwinder; Hamburg University of Technology (TUHH), Institute for Engineering Thermodynamics, Hamburg, GERMANY
Schmitz, Gerhard; Hamburg University of Technology (TUHH), Institute for Engineering Thermodynamics, Hamburg, GERMANY
Mickan, Bodo; 1.4, Gase, PTB-Braunschweig
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| Quelle/Jahr | FLOMEKO 2019 - 18th International Flow Measurement Conference: proceedings:(2019), 1 - 6 |
| Availability | [online only] |
| URL | |
| Konferenzangaben | 18th International Flow Measurement Conference - FLOMEKO 2019, Lisbon, 26-28, June, 2019, Portugal |
| Freie Schlagworte | Flow Comparator ; High Pressure Natural Gas Metering ; Modelica ; Computational Model |
| Zusammenfassung | 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 an 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 is developed to investigate the Flow Comparator's dynamic behaviour. 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. |
| Kostenfreier Zugang | Freier Zugang |
| Themenbereich der Metrologie | Durchfluss |