Giant electromagnetic pump for sodium cooled reactor applications

Fanning, Alan W.; Kliman, G.B.; Kwant, W.; Dahl, L.; Inagaki, Terumi; Ueta, Masahiro; Nibe, Nobuaki; Ota, Hiroyuki; Katsuki, Kenji; Doi, Yoshihiro; Maekawa, Isamu

doi:10.1109/iemdc.2003.1211306

Cited by 3 publications

(1 citation statement)

References 3 publications

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“…Although the ALIP has a superior performance in terms of stability and safety, the energy efficiency of ALIP is usually lower than the mechanical pumps [9,10]. More importantly, the conveyed liquid metals in ALIP can suffer from unstable flows, e.g., vortex and reversed flows, at the off-design flow rates, resulting in large pressure pulsation at the pump's outlet [6].…”

Section: Introductionmentioning

confidence: 99%

Active Flow Control of the Magnetohydrodynamic Flow in an Annular Linear Induction Pump by Modifying the Driving Electromagnetic Field

Wang,

Zhang

et al. 2024

International Journal of Energy Research

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The strong coupling between fluid and electromagnetic field in the annular linear induction pump (ALIP) can gradually amplify small disturbance in the fluid field into large-scale vortices. The appearance of the vortices seriously affects the efficiency and reliability of the pump. An active flow control method based on the modification of the driving electromagnetic field is proposed to improve the flow stability. A simplified numerical model of the ALIP is established to simulate the three-dimensional flow in the annular flow channel, and the internal electromagnetic field is modified by using the modulated surface current. The influences of the active flow control method on the flow behavior, pressure pulsation, and energy conversion are, respectively, investigated based on the simulation results. The results show that the modulated surface current can accelerate the vortical evolution. The size and strength of the vortices are suppressed in the modified electromagnetic field. The pressure pulsation low frequency at the ALIP’s outlet is significantly reduced when the modulated surface current density reaches a certain level. The surges in the processes of energy conversion become more gentle within the control method, and the overall energy efficiency is slightly reduced even at the highest modulated surface current density.

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Section: Introductionmentioning

confidence: 99%

Active Flow Control of the Magnetohydrodynamic Flow in an Annular Linear Induction Pump by Modifying the Driving Electromagnetic Field

Wang,

Zhang

et al. 2024

International Journal of Energy Research

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Design and preliminary test of an annular linear induction electromagnetic pump for a sodium-cooled fast reactor thermal hydraulic experiment

Kwak

Kim

2017

Journal of Nuclear Science and Technology

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An annular linear induction electromagnetic pump (ALIP) with a flow rate of 2265 L/min and a developed pressure of 4 bar was designed and fabricated to test the performance of the components of a sodium-cooled fast reactor (SFR) in a sodium thermal hydraulic experimental loop. The design characteristic of the ALIP was calculated using the electrical equivalent circuit method typically used for analyzing linear induction machines. Preliminary tests, such as verification of the moving function using an annular Al pipe, were carried out. The linearity between the input voltage, current, and magnetic flux density was verified. The developed force demonstrated an increase proportional to the square of the input current, whereas the velocity was linearly proportional to the input current. The main design variables of the pump were calculated theoretically for the SFR thermal hydraulic experimental loop. The pump was optimized for the design variables including input frequency, and the characteristics of the optimized pump were compared with those of the pump at the commercially used frequency of 60 Hz.

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Studies of the Annular Linear Induction Pumps for sodium circuits use in nuclear plants

Roman

2013

2013 4th International Youth Conference on Energy (IYCE)

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Giant electromagnetic pump for sodium cooled reactor applications

Cited by 3 publications

References 3 publications

Active Flow Control of the Magnetohydrodynamic Flow in an Annular Linear Induction Pump by Modifying the Driving Electromagnetic Field

Active Flow Control of the Magnetohydrodynamic Flow in an Annular Linear Induction Pump by Modifying the Driving Electromagnetic Field

Design and preliminary test of an annular linear induction electromagnetic pump for a sodium-cooled fast reactor thermal hydraulic experiment

Studies of the Annular Linear Induction Pumps for sodium circuits use in nuclear plants

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