A design and characteristic experiment of the small annular linear induction electromagnetic pump

作者：Kim Hee Reyoung^*; Lee Yong Bum

来源：Annals of Nuclear Energy, 2011, 38(5): 1046-1052.

DOI：10.1016/j.anucene.2011.01.008

• Electromagnetic pump
• Flowrate
• Developed pressure
• Annular linear induction
• Equivalent circuit

A small-scale annular linear induction electromagnetic pump (ALIP) of the externally-supported-in-pipe type with a flowrate of 60 L/min and a developed pressure of 1.3 bar was developed for the circulation of sodium liquid metal. The developed pressure and the efficiency of the pump were analyzed on the change of the pump-design variables by using an equivalent circuit method. The pump designed was manufactured with the consideration to the material and functional requirements of a chemically-active sodium environment. The silicon-iron steel plates with high magnetic permeability and alumina-dispersion-strengthened-copper bands were used as cores and coils of the pump electromagnet for operating in a high temperature. Each turn of the coil was insulated by an asbestos band to protect against an electrical short at a high temperature. Stainless steel compatible with sodium was selected as a structural material. The completed pump was installed in the sodium experimental loop system. At temperatures of 150 degrees C and 350 degrees C, the performance of the ALIP (including the P-Q characteristic) was tested by changing the electrical input. The measurements showed that the pumping flowrate and the developed pressure were increased as the input current, voltage and power increased. On the other hand, the developed pressure was decreased with the increase of the flowrate. At the nominal input current and voltage, the developed pressure was 1.25 bar with the relative error of 3.8% compared with the prediction of 1.3 bar at 150 degrees C, where the flowrate was 54 L/min. The test on the pump showed good agreement with the theoretical calculation with some experimental errors.

• 出版日期2011-5