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Stainless Steel NaK-Cooled Circuit (SNaKC) Fabrication and AssemblyAn actively pumped Stainless Steel NaK Circuit (SNaKC) has been designed and fabricated by the Early Flight Fission Test Facility (EFF-TF) team at NASA's Marshall Space Flight Center. This circuit uses the eutectic mixture of sodium and potassium (NaK) as the working fluid building upon the experience and accomplishments of the SNAP reactor program from the late 1960's The SNaKC enables valuable experience and liquid metal test capability to be gained toward the goal of designing and building an affordable surface power reactor. The basic circuit components include a simulated reactor core a NaK to gas heat exchanger, an electromagnetic (EM) liquid metal pump, a liquid metal flow meter, an expansion reservoir and a drain/fill reservoir To maintain an oxygen free environment in the presence of NaK, an argon system is utilized. A helium and nitrogen system are utilized for core, pump, and heat exchanger operation. An additional rest section is available to enable special component testing m an elevated temperature actively pumped liquid metal environment. This paper summarizes the physical build of the SNaKC the gas and pressurization systems, vacuum systems, as well as instrumentation and control methods.
Document ID
20070031970
Acquisition Source
Marshall Space Flight Center
Document Type
Conference Paper
Authors
Godfroy, Thomas J.
(NASA Marshall Space Flight Center Huntsville, AL, United States)
Date Acquired
August 23, 2013
Publication Date
June 24, 2007
Subject Category
Electronics And Electrical Engineering
Meeting Information
Meeting: Space Nuclear Conference (SNC) 2007
Location: Boston, MA
Country: United States
Start Date: June 24, 2007
End Date: June 28, 2007
Sponsors: American Nuclear Society
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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