Eddy current flow meter model validation with a moving solid rod

Cornwall Lau; Kellen Oleksak; Sacit M. Cetiner; Paul Groth; Craig Mauer; Dustin Ottinger; Michael J. Roberts; Bruce Warmack; Aly E. Fathy

doi:10.1088/1361-6501/ac6145

Eddy current flow meter model validation with a moving solid rod

Cornwall Lau, Kellen Oleksak, Sacit M. Cetiner, Paul Groth, Craig Mauer, Dustin Ottinger, Michael J. Roberts, Bruce Warmack, Aly E. Fathy

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

The eddy current flow meter (ECFM) has been used to measure velocities and temperatures of conductive flows, such as liquid metal flows in a nuclear fission reactor. The goal of this paper is to develop a finite element electromagnetic model that can characterize the ECFM sensor performance and validate this finite element model with detailed velocity measurements of a controlled, well-characterized moving conductive solid rod. Both measurements and modeling were performed for various parameters that are important for ECFM performance such as rod velocity, rod material, ECFM sensor coil length, number of sensor coils, applied alternating current (AC) current amplitude, and applied ECFM AC frequency. For all parametric scans, the measurement and modeling agree well in both magnitude and trend. The normalized root-mean-square error between measurement and modeling is less than 10% for all cases. These results suggest that electromagnetic modeling could eventually be used to cost-effectively design future ECFM sensors in arbitrary geometry for more challenging applications such as liquid metal nuclear fission reactors.

Original language	English
Article number	075301
Journal	Measurement Science and Technology
Volume	33
Issue number	7
DOIs	https://doi.org/10.1088/1361-6501/ac6145
State	Published - Jul 2022

Funding

This manuscript has been authored in part by UT-Battelle, LLC, under contract DE-AC05-00OR22725 with the US Department of Energy (DOE). The US government retains and the publisher, by accepting the article for publication, acknowledges that the US government retains a nonexclusive, paid-up, irrevocable, worldwide license to publish or reproduce the published form of this manuscript, or allow others to do so, for US government purposes. DOE will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan ( http://energy.gov/downloads/doe-public-access-plan ). This work was funded by the DOE Office of Nuclear Energy (NE) Versatile Test Reactor (VTR) Project. The reported work resulted from studies that support a VTR conceptual design, cost, and schedule estimates for DOE-NE to make a decision of procurement. As such, it is preliminary.

Keywords

eddy current
electromagnetism
finite element
flow meter
modeling

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10.1088/1361-6501/ac6145

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title = "Eddy current flow meter model validation with a moving solid rod",

abstract = "The eddy current flow meter (ECFM) has been used to measure velocities and temperatures of conductive flows, such as liquid metal flows in a nuclear fission reactor. The goal of this paper is to develop a finite element electromagnetic model that can characterize the ECFM sensor performance and validate this finite element model with detailed velocity measurements of a controlled, well-characterized moving conductive solid rod. Both measurements and modeling were performed for various parameters that are important for ECFM performance such as rod velocity, rod material, ECFM sensor coil length, number of sensor coils, applied alternating current (AC) current amplitude, and applied ECFM AC frequency. For all parametric scans, the measurement and modeling agree well in both magnitude and trend. The normalized root-mean-square error between measurement and modeling is less than 10% for all cases. These results suggest that electromagnetic modeling could eventually be used to cost-effectively design future ECFM sensors in arbitrary geometry for more challenging applications such as liquid metal nuclear fission reactors.",

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AU - Oleksak, Kellen

AU - Cetiner, Sacit M.

AU - Groth, Paul

AU - Mauer, Craig

AU - Ottinger, Dustin

AU - Roberts, Michael J.

AU - Warmack, Bruce

AU - Fathy, Aly E.

PY - 2022/7

Y1 - 2022/7

N2 - The eddy current flow meter (ECFM) has been used to measure velocities and temperatures of conductive flows, such as liquid metal flows in a nuclear fission reactor. The goal of this paper is to develop a finite element electromagnetic model that can characterize the ECFM sensor performance and validate this finite element model with detailed velocity measurements of a controlled, well-characterized moving conductive solid rod. Both measurements and modeling were performed for various parameters that are important for ECFM performance such as rod velocity, rod material, ECFM sensor coil length, number of sensor coils, applied alternating current (AC) current amplitude, and applied ECFM AC frequency. For all parametric scans, the measurement and modeling agree well in both magnitude and trend. The normalized root-mean-square error between measurement and modeling is less than 10% for all cases. These results suggest that electromagnetic modeling could eventually be used to cost-effectively design future ECFM sensors in arbitrary geometry for more challenging applications such as liquid metal nuclear fission reactors.

AB - The eddy current flow meter (ECFM) has been used to measure velocities and temperatures of conductive flows, such as liquid metal flows in a nuclear fission reactor. The goal of this paper is to develop a finite element electromagnetic model that can characterize the ECFM sensor performance and validate this finite element model with detailed velocity measurements of a controlled, well-characterized moving conductive solid rod. Both measurements and modeling were performed for various parameters that are important for ECFM performance such as rod velocity, rod material, ECFM sensor coil length, number of sensor coils, applied alternating current (AC) current amplitude, and applied ECFM AC frequency. For all parametric scans, the measurement and modeling agree well in both magnitude and trend. The normalized root-mean-square error between measurement and modeling is less than 10% for all cases. These results suggest that electromagnetic modeling could eventually be used to cost-effectively design future ECFM sensors in arbitrary geometry for more challenging applications such as liquid metal nuclear fission reactors.

KW - eddy current

KW - electromagnetism

KW - finite element

KW - flow meter

KW - modeling

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Eddy current flow meter model validation with a moving solid rod

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