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A novel contactless flow rate measurement device for poorly conducting fluids using Lorentz force velocimetry

DOI: 10.1615/ICHMT.2012.ProcSevIntSympTurbHeatTransfPal.2090
pages 2038-2042

C. Resagk
Institute of Thermodynamics and Fluid Mechanics, Technische Universität Ilmenau, Am Helmholtzring 1, 98693 Ilmenau, Germany

A. Wegfrass
Department of Mechanical Engineering, Ilmenau University of Technology, P.O. Box 100565, 98684 Ilmenau, Germany

C. Diethold
Department of Mechanical Engineering, Ilmenau University of Technology, P.O. Box 100565, 98684 Ilmenau, Germany

M. Werner
Department of Mechanical Engineering, Ilmenau University of Technology, P.O. Box 100565, 98684 Ilmenau, Germany

F. Hilbrunner
Department of Mechanical Engineering, Ilmenau University of Technology, P.O. Box 100565, 98684 Ilmenau, Germany

B. Halbedel
Department of Mechanical Engineering, Ilmenau University of Technology, P.O. Box 100565, 98684 Ilmenau, Germany

Andre Thess
Department of Mechanical Engineering, Ilmenau University of Technology, P.0. Box 100565, 98684 Ilmenau, Germany

Sinopsis

This paper presents the experimental setup and the first measurement results of a novel device for the contactless flow rate measurement in poorly conducting fluids. The device relies on the technique of Lorentz force velocimetry (LFV) which has been intensively studied by Thess et al. [1]. The results of our investigation show for the first time the feasibility of LFV in fluids with conductivity less than 10 Sm−1. Here, the forces to be measured are in the order of magnitude of 10−5 N.

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