Accession Number : AD1046302


Title :   In-Service Inspection Approaches for Lead-Cooled Nuclear Reactors


Descriptive Note : Technical Report


Corporate Author : Naval Postgraduate School Monterey United States


Personal Author(s) : Bowen,James C


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/1046302.pdf


Report Date : 01 Jun 2017


Pagination or Media Count : 93


Abstract : Lead-cooled fast reactors (LFRs) present design challenges in accomplishing in-service inspections (ISIs) due to the opacity, corrosiveness, and high operating temperature of lead. Current technology can adjust to accomplish ISIs for LFRs. The inspections identified and outlined in this thesis are intended to address Nuclear Regulatory Commission requirements for advanced reactor design concerning ISIs. This research identifies ISI requirements for advanced reactors such as the LFR, assesses current ISI techniques on functioning and proposed reactors, and tests the physics theory, ensuring compatibility with LFRs. Techniques evaluated were considered applicable to LFRs, and in general, require further development. Acoustic, thermal, and eddy-current testing methods were individually evaluated for use in an LFR and compared to the operating conditions of functioning and proposed reactors. Each method was found to be potentially feasible for application to ISI of LFRs based on the consideration of basic physics theory. Overall, this thesis provides an outline of technologies that can accomplish ISIs, making LFRs a more viable option for meeting future energy demands.


Descriptors :   inspection , acoustic attenuation , EDDY CURRENTS , NUCLEAR REACTORS , lead (element) , LIQUID METAL COOLED REACTORS , TEST METHODS , monitoring


Subject Categories : Nuclear Power Plants and Fission Reactor Eng
      Test Facilities, Equipment and Methods


Distribution Statement : APPROVED FOR PUBLIC RELEASE