• Effect of annular secondary conductor in a linear electromagnetic stirrer

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    • Keywords

       

      Linear electromagnetic stirrer; finite element analysis; and annularring.

    • Abstract

       

      This paper presents the variation of average axial force density in the annular secondary conductor of a linear electromagnetic stirrer. Different geometries of secondaries are considered for numerical and experimental validation namely, 1. hollow annular ring, 2. annular ring with a solid cylinder and 3. solid cylinder. Experimental and numerical simulations are performed for a 2-pole in house built 15 kW linear electromagnetic stirrer (EMS). It is observed for a supply current of 200 A at 30 Hz the force densities in the hollow annular ring is 67% higher than the equivalent solid cylinder. The same values are 33% for annular ring with a solid cylinder. Force density variation with supply frequency and current are also reported. Numerical simulations using finite element model are validated with experimental results.

    • Author Affiliations

       

      R Madhavan1 V Ramanarayanan2

      1. Department of Electrical Engineering, Indian Institute of Technology, Bombay, Powai, Mumbai 400 076
      2. Power Electronics Group, Department of Electrical Engineering, Indian Institute of Science, Bangalore 560 012
    • Dates

       
  • Sadhana | News

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