Development of 160m3/min Large Capacity Sodium-Immersed Self-Cooled Electromagnetic Pump

Ota, Hiroyuki; Katsuki, Kenji; Funato, Minoru; Taguchi, Junzo; FANNING, Alan W.; Doi, Yoshihiro; Nibe, Nobuaki; Ueta, Masahiro; Inagaki, Terumi

doi:10.3327/jnst.41.511

Cited by 7 publications

(7 citation statements)

References 2 publications

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“…We considered EMP pump with the rated flow rate of 160m3/min as this simulation target (Ota, et al, 2004). Design specifications of this EMP pump are shown in Table 1, and simulation conditions are shown in Table 2.…”

Section: Simulation Conditionmentioning

confidence: 99%

“…Electromagnetic (EM) pumps, which drive liquid metals by electromagnetic force for Fast Reactor (FR), have been developed in many countries (Kittaka, et al, 2011;Ota, et al, 2004) EM pumps are static equipment which have no mechanical moving parts and circulate liquid sodium by electromagnetic force, and are advantageous in its reliability and maintainability compared with mechanical pumps. Annular Linear Induction Pumps (ALIPs) are one of the EM pumps and are relatively easy to size up pump capacity.…”

Section: Introductionmentioning

confidence: 99%

“…When a lower flow rate than the peak of the P-Q curve is selected as the operation point, we sometimes encounter the developed pressure's drop and fluctuation during the operation of EM pump (Ota, et al, 2004). The fluctuation then has lower than frequency than 10Hz.…”

Section: Introductionmentioning

confidence: 99%

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3D MHD simulation of pressure drop and fluctuation in electromagnetic pump flow

Asada

Aizawa

Suzuki

et al. 2015

Mechanical Engineering Journal

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Electromagnetic (EM) pumps, which drive liquid metals by electromagnetic force for Fast Reactor, had been developed. Annular Linear Induction Pumps (ALIPs) are one of EM pumps. There are some reports in which a drop and a fluctuation of the developed pressure occurred near the top of the developed pressure and flow rate relation curve (P-Q curve). This phenomenon was reported by Gailitis, Kirillov and Araseki. They simulated it using two-dimensional (2D) code and reported that it was characterized by vortices, which were initiated by azimuthal non-uniformity of sodium flow velocity and/or magnetic field, in the liquid sodium flow. We have calculated the developed pressure of EM pump by 2D magnetohydrodynamics (MHD) code and designed an EM pump. It was found that the code simulated the developed pressure with high accuracy in normal operations. When the flow rate was lower than one in the top of P-Q curve, the developed pressure's drop and fluctuation occurred. The fluctuation would disturb the stable operation of the pump. For avoiding this phenomenon, the EM pump's design becomes sometimes too conservative. To evaluate the quantitative effect of this phenomenon and occurred conditions, we have developed a new three-dimensional(3D) MHD code. Clarification of these conditions and its phenomena will enable us to design a new structure or determine operation conditions. This paper presents the simulation results in terms of the generation of a developed pressure's drop and fluctuation occurrence. We used initial conditions which had azimuthal non-uniformity of sodium velocity to simulate vortices in the liquid sodium. Our 3D MHD code simulated the developed pressure's drop and fluctuation by vortices in radial and circumferential direction. It was confirmed that the vortices developed in the radial direction and then the vortices in circumferential direction developed.

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Section: Simulation Conditionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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3D MHD simulation of pressure drop and fluctuation in electromagnetic pump flow

Asada

Aizawa

Suzuki

et al. 2015

Mechanical Engineering Journal

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“…In the storage system we propose, heat is stored in spheres that are transported between the storage unit and the converters by an electromagnetically pumped heat‐transfer fluid. An electric current passes through the heat‐transfer fluid and moves it by the Lorenz force . Potential problems of a technological nature will not be considered here unless they affect the basic efficiency limits as this study is focused on the principles and the potential of the proposed concept…”

Section: Introductionmentioning

confidence: 99%

High‐Temperature Latent‐Heat Energy Storage Concept Based on Thermoelectronic Energy Conversion

et al. 2017

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Energy storage is particularly essential for renewable energy sources. Here we present the concept of high‐temperature latent‐heat storage coupled with thermoelectronic energy conversion. We analyze this concept and its potential for storing large quantities of energy for several days. We investigate the efficiency of electricity generation and storage by using a single thermoelectronic energy converter and a bottoming cycle with a steam turbine. For storage temperatures above 1400 °C and large amounts of stored energy (>100 MWh), the maximum energy conversion efficiencies of such systems are high. Thus the proposed systems are attractive storage solutions for excessive heat storage and heat‐on‐demand delivery of large‐scale thermal solar power plants.

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“…Yet, in the context of Generation IV of nuclear reactors development, the ALIPs are again among the concerns of international teams for research and development [1][2][3][4][5][6][7][8]. Integration of the electromagnetic pumps in the safer and more efficient generation of Sodium Fast Reactors (SFR) is due to their obvious advantages: absence of any moving parts and of corresponding mechanical vibration, possibility of total sealing of the liquid inside the pump, direct generation of the pumping forces in the mass of liquid metal.…”

Section: Introductionmentioning

confidence: 99%

Study of the electromagnetic phenomena in the Annular Linear Induction Pump based on 3D finite element models

Roman

Fireteanu

Fautrelle

et al. 2013

2013 8th International Symposium on Advanced Topics in Electrical Engineering (Atee)

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The work studies the tridimensional electromagnetic field structure of a single sided Annular Linear Induction Pump (ALIP), based on 3D finite elements models in the "block pumping" assumption. It treats the time variation of the pumping force and gives qualitative and quantitative information about the braking forces occurring at the inlet, outlet and along the pump. There are given data about the distance between magnetic cores effect over the azimuth nonuniformity of the electromagnetic quantities.

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Development of 160m3/min Large Capacity Sodium-Immersed Self-Cooled Electromagnetic Pump

Cited by 7 publications

References 2 publications

3D MHD simulation of pressure drop and fluctuation in electromagnetic pump flow

3D MHD simulation of pressure drop and fluctuation in electromagnetic pump flow

High‐Temperature Latent‐Heat Energy Storage Concept Based on Thermoelectronic Energy Conversion

Study of the electromagnetic phenomena in the Annular Linear Induction Pump based on 3D finite element models

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