Argonne National Laboratory

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Optimization of Moving Magnet Pumps for High-Temperature Sodium Systems

Nuclear Engineering Seminar
Michael Hvasta, University of Wisconsin - Madison
January 18, 2013 9:00AM to 10:00AM
Building 208, Room C234
Recent advances in permanent magnet technology have enabled moving magnet pumps (MMPs) to effectively operate in high-temperature sodium systems.  However, current MMPs are not being optimized to take full advantage of these improved magnets for two main reasons.  First, there is very little information on the sodium compatibility of high-strength alloys or ceramics that could be used to make stronger, more efficient pump ducts. Second, theoretical pump models do not yield accurate predictions for all magnet configurations thereby making the MMP design process both difficult and error-prone. This talk will offer an overview of MMP theory, present MMP performance data, and discuss the results of corrosion tests performed under prototypic sodium-cooled fast reactor (SFR) operating conditions (550°C, 9.4 [m/s] and CO = 2.14 [wppm]).