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Title: Multiphysics analysis of liquid metal annular linear induction pumps: A project overview

Liquid metal-cooled fission reactors are both moderated and cooled by a liquid metal solution. These reactors are typically very compact and they can be used in regular electric power production, for naval and space propulsion systems or in fission surface power systems for planetary exploration. The coupling between the electromagnetics and thermo-fluid mechanical phenomena observed in liquid metal thermo-magnetic systems for nuclear and space applications gives rise to complex engineering magnetohydrodynamics and numerical problems. It is known that electromagnetic pumps have a number of advantages over rotating mechanisms: absence of moving parts, low noise and vibration level, simplicity of flow rate regulation, easy maintenance and so on. However, while developing annular linear induction pumps, we are faced with a significant problem of magnetohydrodynamic instability arising in the device. The complex flow behavior in this type of devices includes a time-varying Lorentz force and pressure pulsation due to the time-varying electromagnetic fields and the induced convective currents that originates from the liquid metal flow, leading to instability problems along the device geometry. The determinations of the geometry and electrical configuration of liquid metal thermo-magnetic devices give rise to a complex inverse magnetohydrodynamic field problem were techniques for global optimization should bemore » used, magnetohydrodynamics instabilities understood –or quantified- and multiphysics models developed and analyzed. Lastly, we present a project overview as well as a few computational models developed to study liquid metal annular linear induction pumps using first principles and the a few results of our multi-physics analysis.« less
Authors:
 [1] ;  [2]
  1. MAIDANA RESEARCH, Grandville, MI (United States); Idaho State Univ., Pocatello, ID (United States); Chiang Mai Univ., Chiang Mai (Thailand)
  2. MAIDANA RESEARCH, Grandville, MI (United States); Univ. of Southern California, Los Angeles, CA (United States)
Publication Date:
OSTI Identifier:
1256457
Grant/Contract Number:
SC0013992
Type:
Accepted Manuscript
Journal Name:
Proceedings of the Nuclear and Emerging Technologies for Space Conference 2016
Additional Journal Information:
Conference: Nuclear and Emerging Technologies for Space Conference 2016
Research Org:
MAIDANA RESEARCH, Grandville, MI (United States)
Sponsoring Org:
USDOE Office of Nuclear Energy (NE)
Country of Publication:
United States
Language:
English
Subject:
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; 22 GENERAL STUDIES OF NUCLEAR REACTORS; 24 POWER TRANSMISSION AND DISTRIBUTION; 11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS; 42 ENGINEERING liquid metals; magneto-hydrodynamics; thermo-magnetic systems; electromagnetic pumps; ALIP