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Title : Calibration of MHD Flow Meter using COMSOL Multiphysics
Company : Comsol
Date : 15-Mar-2013

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Featured Paper by S. Sahu, R. P .Bhattachryay & E. R. Kumar

There is limited option for non-intrusive flow measurement of liquid metals at high temperature. Liquid metal flowing in a conduit along with the transverse magnetic field induces emf in the liquid metal. The emf developed; which has linear dependency on flow velocity; can be used for flow velocity estimation. In case of conducting conduit the emf can be measured at the conduit wall. The main hindrance with this technique is the calibration. The induced emf depends upon the thermo-physical parameters like electrical conductivity, viscosity of the liquid metal as well as the electrical conductivity of the conduit wall. The flow meter calibrated with a fluid at some temperature will not behave in the same way with other liquid metal or at another temperature. Usage of flow meter with different fluid necessitates calibration with that fluid at required temperature; which increase the cost of usage. In this paper, an effort has been made, using numerical methods, to eliminate the repeated calibration work for different fluid at different temperature.
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