Design and Testing of D.C. Conduction Pump for Sodium Cooled Fast Reactor

Nashine, B.K.; Dash, S. K.; Gurumurthy, K.; Rajan, M.; Vaidyanathan, G.

doi:10.1115/icone14-89123

Cited by 5 publications

(6 citation statements)

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“…ALIP, as a special form of EMP, has better structural symmetry, and is more suitable for ordinary piping systems, then the annular channel can also improve output stability to a certain extent. Moreover, the current in the liquid metal of ALIP is induced by an alternating magnetic field originated from the excitation windings, thereby the inherent problems associated with electrode corrosion of the conduction EMPs are virtually non-existent [6]. Based on these advantages, ALIP has emerged as the preferred choice for the liquid metal cooled reactors.…”

Section: Introductionmentioning

confidence: 99%

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The Improved Equivalent Circuit Models Considering End Effects of Annular Linear Induction Electromagnetic Pump for Space Nuclear Power Supply

et al. 2021

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The improved equivalent circuit models considering the end effects are put forward to predict the performance of annular linear induction electromagnetic pump (ALIP) based on the one-dimensional analytical model built in this paper. First, the one-dimensional physical model of ALIP is established, and the analytical expressions of electromagnetic fields are deduced and the impact of the end effects on it is analyzed. Then, two equivalent circuit models including the model only considering the end effects and the model fully taking the end effects and the difference of synchronous velocity among the end effect traveling waves and the fundamental wave into account are developed. Meanwhile, the key impedance parameters in the equivalent circuit models are obtained and the correction coefficients of the impedance generated by the end effects are abstracted. Furtherly, the performances of a small designed ALIP are calculated by the conventional and two improved equivalent circuit models respectively, the results obtained from them are compared with measured data to validate the rationality and feasibility of the models proposed.INDEX TERMS ALIP, electromagnetic field, equivalent circuit, end effect, developed pressure 12

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Section: Introductionmentioning

confidence: 99%

“…Z.ZHANG et al: The improved equivalent circuit models considering end effects of annular linear induction electromagnetic pump6 VOLUME XX, 2021…”

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confidence: 99%

The Improved Equivalent Circuit Models Considering End Effects of Annular Linear Induction Electromagnetic Pump for Space Nuclear Power Supply

et al. 2021

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“…The velocity is affected by the inner diameter under a fixed flowrate . The Lorentz force generated by the vector product of current density and magnetic flux density, electromotive force generated by the velocity and magnetic flux density of liquid sodium, and hydraulic pressure loss due to frictional force of the fluid were considered to calculate the input current of the helical‐type MHD transportation system. Therefore, the pressure generated by the Lorentz force, pressure loss by the electromotive force, and hydraulic pressure loss relative to the parameters are analysed to optimise the helical‐type MHD transportation system .…”

Section: Introductionmentioning

confidence: 99%

“…The Lorentz force generated by the vector product of current density and magnetic flux density, electromotive force generated by the velocity and magnetic flux density of liquid sodium, and hydraulic pressure loss due to frictional force of the fluid were considered to calculate the input current of the helical‐type MHD transportation system. Therefore, the pressure generated by the Lorentz force, pressure loss by the electromotive force, and hydraulic pressure loss relative to the parameters are analysed to optimise the helical‐type MHD transportation system . The specifications of the MHD transportation system are determined by the system pressure loss and mass flowrate for heat transfer, and are set as follows: developed pressure of 10 kPa and flowrate of 0.005 m 3 /s under a temperature of 468.75 K .…”

Section: Introductionmentioning

confidence: 99%

Magnetohydrodynamics approach for active decay heat removal system in future generation IV reactor

Lee

Kim

2018

Int J Energy Res

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Summary In this work, a helical‐type magnetohydrodynamics transportation system for active decay‐heat‐removal system in a prototype fourth‐generation sodium fast reactor was numerically analysed considering operational conditions of atmospheric pressure, for liquid sodium transportation in a loop. The prototype fourth‐generation sodium fast reactor is a reactor with high uranium utilisation and an electric power output of 150 MWe, subjected to a developed pressure of 10 kPa and flowrate of 0.005 m3/s under a temperature condition of 468.75 K for the active decay‐heat‐removal system. A helical‐type magnetohydrodynamics transportation system was used to develop pressure in such a loop to reduce the current compared with that in a rectangular‐type one; this could overcome the principal limitation of the requirement of a high current in a magnetohydrodynamics transportation system. The main parameters of the considered helical‐type magnetohydrodynamics transportation system were the inner diameter, silver brazing, number of turns, and radius of pump, which affect the current, magnetic‐flux density, and its velocity. The parameters were analysed in relation to the minimisation of the pump current while maximising the pressure. The specifications of the optimised helical‐type magnetohydrodynamics transportation system—current of 352 A and magnetic‐flux density of 0.466 T—were derived to satisfy the conditions of the active decay‐heat‐removal system.

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“…The electric circuit methods [1] for rectangular-and cylindrical-type DC electromagnetic pumps are presented in Fig. 2.…”

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confidence: 99%

Numerical investigation and comparison of the rectangular, cylindrical, and helical-type dc electromagnetic pumps

Lee¹,

Kim²

2017

MHD

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Rectangular, cylindrical, and helical-type DC electromagnetic pumps with a low flowrate of 6 cc/s and a developed pressure of 10 bar were comparatively analyzed for a liquid lithium transportation system operating at a temperature of 300 • C. The design variables for DC electromagnetic pumps with different types of geometries were optimized to attain the required flowrate and developed pressure. The relation between the developed pressure and the input current was analyzed for an incompressible liquid metal flow in the channels of all three types of DC electromagnetic pumps. Theoretical calculations showed that the helical-type DC electromagnetic pump, which had multiple connected ducts with parallel contacts for a reduced input current, needed 12% of the current of the rectangular-and cylindrical-type pumps to satisfy the hydrodynamic conditions, despite the more or less complex geometry.

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Design and Testing of D.C. Conduction Pump for Sodium Cooled Fast Reactor

Cited by 5 publications

References 0 publications

The Improved Equivalent Circuit Models Considering End Effects of Annular Linear Induction Electromagnetic Pump for Space Nuclear Power Supply

The Improved Equivalent Circuit Models Considering End Effects of Annular Linear Induction Electromagnetic Pump for Space Nuclear Power Supply

Magnetohydrodynamics approach for active decay heat removal system in future generation IV reactor

Numerical investigation and comparison of the rectangular, cylindrical, and helical-type dc electromagnetic pumps

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