3500 m3/h MHD Pump for Fast Breeder Reactor

Karasev, B.G.; Kirillov, I.R.; Ogorodnikov, A.P.

doi:10.1007/978-94-009-0999-1_41

Cited by 8 publications

(5 citation statements)

References 2 publications

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“…In this model, instability arises and takes the form of an inhomogeneity in the azimuthal direction, for sufficiently large Rm. This instability may be related to experimental results obtained by [2], [3] who showed that when Rm > Rm c , a low frequency pulsation in the pressure and the flow rate is indeed observed.…”

Section: Introductionsupporting

confidence: 70%

Instability in electromagnetically driven flows. II

Imazio¹,

Gissinger²

2016

Physics of Fluids

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In a previous paper, we have reported numerical simulations of the MHD flow driven by a travelling magnetic field (TMF) in an annular channel, at low Reynolds number. It was shown that the stalling of such induction pump is strongly related to magnetic flux expulsion. In the present article, we show that for larger hydrodynamic Reynolds number, and with more realistic boundary conditions, this instability takes the form of a large axisymmetric vortex flow in the (r, z)-plane, in which the fluid is locally pumped in the direction opposite to the one of the magnetic field. Close to the marginal stability of this vortex flow, a low-frequency pulsation is generated. Finally, these results are compared to theoretical predictions and are discussed within the framework of experimental annular linear induction electromagnetic pumps. 52.65.Kj, 91.25.Cw

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Section: Introductionsupporting

confidence: 70%

Instability in electromagnetically driven flows. II

Imazio¹,

Gissinger²

2016

Physics of Fluids

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“…Magnetic Reynolds' number times slip (Re m ÂS) given by the following formula is the dimensionless number showing the qualitative effect which flow field has on magnetic field and can be used for guidance in design for an electromagnetic pump to avoid flow instability. 6) Since the stable/unstable boundary of the electromagnetic pump was unclear at the time of design, it was designed conservatively so that the design value would be approximately one in the rating. However, since advantages such as improvement of the pump efficiency, etc.…”

Section: (4) Number Of Poles Of the Modelmentioning

confidence: 99%

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

Ota

Katsuki

Funato

et al. 2004

Journal of Nuclear Science and Technology

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A large capacity sodium-immersed self-cooled electromagnetic pump (LEMP) was developed for application to the main circulation pumps of FBR. This advanced LEMP is a submergible annular linear induction pump designed to be self-cooled by immersing into sodium and applying high temperature electrical insulation. Almost all the internal electrical losses were transferred to the surrounding sodium, which can be recovered as electricity by turbine generators. The LEMP having specifications of 160 m 3 /min flow rate, 0.28 MPa head and more than 40% efficiency at the rating was designed, fabricated and tested in the sodium pump test facility. The test involves magnetic field measurement in the air and a variety of sodium tests during 2,550 h, which demonstrated good pump performance and flow controllability, and satisfied the design target. The boundary between flow stability and instability of the LEMP operation could be defined by peak position of the Q-H curve, which was specified by Re m ÂS (magnetic Reynolds' number times slip) of 1.4 to 1.5 at 335 C. Based on the test results, the applicability of the LEMP for the FBR was confirmed.

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“…A lot of efforts have been devoted to develop ALIPs (see, for example, [6,7,8,9,10]) with large flow rate. The most significant problem that we are faced at the design of a large-scale pumps is the magnetohydrodynamic (MHD) instability.…”

Section: Introductionmentioning

confidence: 99%

“…The instability arises when the Reynolds magnetic number exceeds one [11]. Kirillov et al [12] and Karasev et al [9] experimentally exhibited that the magnetohydrodynamic instability is accompanied with a low frequency pulsation of the pressure and flow rate, azimuthal nonuniformity of the velocity and magnetic field, vibration of the pump and heat carrier loop, and fluctuation of the winding current and voltage. The conventional electrical methods does not help in this case.…”

Section: Introductionmentioning

confidence: 99%

3D numerical modeling of liquid metal turbulent flow in an annular linear induction pump

Abdullina

Bogovalov

Zaikov

2018

Annals of Nuclear Energy

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Abstract3D numerical simulation of the liquid metal flow affected by electromagnetic field in the Annular Linear Induction Pump (ALIP) is performed using modified ANSYS package. ANSYS/EMAG has been modified to take into account arbitrary velocity field at the calculation of the electromagnetic field and has been unified with CFX to provide integration of all the system of magnetohydrodynamic (MHD) equations defining dynamics of the conductive media in the variable electromagnetic field. The non-stationary problem is solved taking into account the influence of the metal flow on the electromagnetic field. The pump performance curve and the dependence of the pump efficiency on a flow rate are obtained.

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3500 m3/h MHD Pump for Fast Breeder Reactor

Cited by 8 publications

References 2 publications

Instability in electromagnetically driven flows. II

Instability in electromagnetically driven flows. II

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

3D numerical modeling of liquid metal turbulent flow in an annular linear induction pump

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3500 m3/h MHD Pump for Fast Breeder Reactor

Cited by 8 publications

References 2 publications

Instability in electromagnetically driven flows. II

Instability in electromagnetically driven flows. II

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

3D numerical modeling of liquid metal turbulent flow in an annular linear induction pump

Contact Info

Product

Resources

About

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