CFD – Tool for Choosing a Suitable Flow Measurement Methods

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F24%3A00378790" target="_blank" >RIV/68407700:21110/24:00378790 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1088/1755-1315/1411/1/012067" target="_blank" >https://doi.org/10.1088/1755-1315/1411/1/012067</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1755-1315/1411/1/012067" target="_blank" >10.1088/1755-1315/1411/1/012067</a>

Result language
angličtina
Original language name
CFD – Tool for Choosing a Suitable Flow Measurement Methods
Original language description
Verifying guaranteed turbine parameters, especially flow rate, is essential after turbine or pump-turbine rehabilitation. Extensive changes in the hydraulic circuit are realized in the case of the transformation of an existing hydropower plant (HPP) to a pumped storage power plant (PSP), replacing vertical Kaplan with a new reversible Francis turbine. The article introduces a methodology for choosing a suitable flow measurement method. Computational fluid dynamics (CFD) supported by standards (IEC, ASME, ISO) and scientific literature serves as a tool for choosing a suitable flow measurement method, its optimal position in the penstock, and quantifying the value of uncertainty. Two main flow measurement methods – the current meter and the ultrasonic method - were considered in this article. A "virtual flow measurement" was performed based on the velocity field obtained from the CFD model. The reconstructed flow rates obtained from the virtual measurement by both methods were compared with exact flow rate values from CFD. The flow deviation's sensitivity to the current meter position or the ultrasonic paths rotation was performed for the selected profiles. The profiles with small deviations and low sensitivity to rotation correspond to the recommended profiles according to the standards.
Czech name
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Czech description
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Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
IOP Conf. Series: Earth and Environmental Science
ISBN
—
ISSN
1755-1315
e-ISSN
1755-1315
Number of pages
10
Pages from-to
1-10
Publisher name
IOP Publishing Ltd
Place of publication
Bristol
Event location
Roorkee
Event date
Sep 11, 2024
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
001411795400068

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