Design and analysis of embedded I and C for loop-scale magnetically suspended pump - 261

Conference · Thu Jun 15 04:00:00 EDT 2017

OSTI ID:23035373

Melin, Alexander M.; Kisner, Roger A. ^[1]

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1. Oak Ridge National Laboratory 1 Bethel Valley Road Oak Ridge, TN 37831 (United States)

Improving nuclear reactor designs and fuel processing technologies for safer and more efficient operation require the development of new component designs. In particular, many of the advanced reactor design such as the molten salt reactors and high-temperature gas cooled reactors have operating environments beyond the ability of many currently commercially available components. To address this, new cross-cutting technologies need to be developed that will enable the design, fabrication, and reliable operation of new classes of reactor components. The Advanced Sensor Initiative of the Nuclear Energy Enabling Technologies initiative is investigating advanced sensor and control designs that are capable of operating in these extreme environments. Under this initiative Oak Ridge National Laboratory (ORNL) has been developing embedded instrumentation and control for extreme environments. To develop, test, and validate these new sensing and control techniques, ORNL is building a pump testbed with submerged magnetic bearings. The eventual goal is to apply these techniques to a high temperature (700 deg. C) canned rotor pump that utilizes active magnetic bearings to eliminate the need for mechanical bearings and seals. The technologies will benefit the Next Generation Power Plant, Advanced Reactor Concepts, and Small Modular Reactor programs. In this paper we will detail the design and analysis of the embedded I and C testbed with submerged magnetic bearings. Then we will analyze the fluid forces on the shaft. Finally, we will develop the radial and thrust bearing geometries needed to meet the force requirements. (authors)

• Research Organization: American Nuclear Society - ANS, 555 North Kensington Avenue, La Grange Park, IL 60526 (United States)
• OSTI ID: 23035373
• Country of Publication: United States
• Language: English

Related Subjects

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
42 ENGINEERING
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
FLUIDS
GEOMETRY
MAGNETIC BEARINGS
MOLTEN SALT REACTORS
NUCLEAR ENERGY
POWER PLANTS
REACTOR COMPONENTS
REACTOR CONTROL SYSTEMS
REACTOR DESIGN
REACTOR INSTRUMENTATION
REACTOR OPERATION
ROTORS
SENSORS
SMALL MODULAR REACTORS