skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Reusable fuel test assembly for the FFTF

Abstract

A fuel test assembly that provides re-irradiation capability after interim discharge and reconstitution of the test pin bundle has been developed for use in the Fast Flux Test Facility (FFTF). This test vehicle permits irradiation test data to be obtained at multiple exposures on a few select test pins without the substantial expense of fabricating individual test assemblies as would otherwise be required. A variety of test pin types can be loaded in the reusable test assembly. A reusable test vehicle for irradiation testing in the FFTF has long been desired, but a number of obstacles previously prevented the implementation of such an experimental rig. The MFF-8A test assembly employs a 169-pin bundle using HT-9 alloy for duct and cladding material. The standard driver pins in the fuel bundle are sodium-bonded metal fuel (U-10 wt% Zr). Thirty-seven positions in the bundle are replaceable pin positions. Standard MFF-8A driver pins can be loaded in any test pin location to fill the bundle if necessary. Application of the MFF-8A reusable test assembly in the FFTF constitutes a considerable cost-saving measure with regard to irradiation testing. Only a few well-characterized test pins need be fabricated to conduct a test program rather than constructingmore » entire test assemblies.« less

Authors:
;  [1]
  1. (Westinghouse Hanford Co., Richland, WA (United States))
Publication Date:
OSTI Identifier:
7057704
Report Number(s):
CONF-920606--
Journal ID: ISSN 0003-018X; CODEN: TANSA
Resource Type:
Conference
Resource Relation:
Journal Name: Transactions of the American Nuclear Society; (United States); Journal Volume: 65; Conference: American Nuclear Society annual meeting, Boston, MA (United States), 7-12 Jun 1992
Country of Publication:
United States
Language:
English
Subject:
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; FFTF REACTOR; FUEL ELEMENTS; PERFORMANCE TESTING; SAMPLE HOLDERS; ALLOY-HT-9; CONTAMINATION; FABRICATION; FAST NEUTRONS; FUEL ASSEMBLIES; FUEL CANS; IMPLEMENTATION; IRRADIATION; POST-IRRADIATION EXAMINATION; SHIELDS; SODIUM; STAINLESS STEEL-316; STRESS CORROSION; SWELLING; ALKALI METALS; ALLOYS; AUSTENITIC STEELS; BARYONS; CHEMICAL REACTIONS; CHROMIUM ALLOYS; CHROMIUM STEELS; CHROMIUM-NICKEL STEELS; CHROMIUM-NICKEL-MOLYBDENUM STEELS; CORROSION; CORROSION RESISTANT ALLOYS; ELEMENTARY PARTICLES; ELEMENTS; EPITHERMAL REACTORS; FAST REACTORS; FERMIONS; HADRONS; HEAT RESIS; HEAT RESISTANT MATERIALS; HEAT RESISTING ALLOYS; HIGH ALLOY STEELS; IRON ALLOYS; IRON BASE ALLOYS; LIQUID METAL COOLED REACTORS; MARTENSITIC STEELS; MATERIALS; METALS; MOLYBDEN; MOLYBDENUM ADDITIONS; MOLYBDENUM ALLOYS; NEUTRONS; NICKEL ALLOYS; NUCLEONS; REACTOR COMPONENTS; REACTORS; RESEARCH AND TEST REACTORS; RESEARCH REACTORS; SODIUM COOLED REACTORS; STAINLESS STEELS; STEEL-CR12MOV; STEEL-CR17NI12MO3; STEELS; TEST REACTORS; TESTING 210500* -- Power Reactors, Breeding

Citation Formats

Pitner, A.L., and Dittmer, J.O.. Reusable fuel test assembly for the FFTF. United States: N. p., 1992. Web.
Pitner, A.L., & Dittmer, J.O.. Reusable fuel test assembly for the FFTF. United States.
Pitner, A.L., and Dittmer, J.O.. 1992. "Reusable fuel test assembly for the FFTF". United States. doi:.
@article{osti_7057704,
title = {Reusable fuel test assembly for the FFTF},
author = {Pitner, A.L. and Dittmer, J.O.},
abstractNote = {A fuel test assembly that provides re-irradiation capability after interim discharge and reconstitution of the test pin bundle has been developed for use in the Fast Flux Test Facility (FFTF). This test vehicle permits irradiation test data to be obtained at multiple exposures on a few select test pins without the substantial expense of fabricating individual test assemblies as would otherwise be required. A variety of test pin types can be loaded in the reusable test assembly. A reusable test vehicle for irradiation testing in the FFTF has long been desired, but a number of obstacles previously prevented the implementation of such an experimental rig. The MFF-8A test assembly employs a 169-pin bundle using HT-9 alloy for duct and cladding material. The standard driver pins in the fuel bundle are sodium-bonded metal fuel (U-10 wt% Zr). Thirty-seven positions in the bundle are replaceable pin positions. Standard MFF-8A driver pins can be loaded in any test pin location to fill the bundle if necessary. Application of the MFF-8A reusable test assembly in the FFTF constitutes a considerable cost-saving measure with regard to irradiation testing. Only a few well-characterized test pins need be fabricated to conduct a test program rather than constructing entire test assemblies.},
doi = {},
journal = {Transactions of the American Nuclear Society; (United States)},
number = ,
volume = 65,
place = {United States},
year = 1992,
month = 1
}

Conference:
Other availability
Please see Document Availability for additional information on obtaining the full-text document. Library patrons may search WorldCat to identify libraries that hold this conference proceeding.

Save / Share:
  • A fuel test assembly for use in the Fast Flux Test Facility (FFTF) has been developed that provides re-irradiation capability after interim discharge and reconstitution of the test pin bundle. This test vehicle permits irradiation test data to be obtained at multiple exposures on a few select test pins without the substantial expense of fabricating individual test assemblies as would otherwise be required. A variety of different test pin types can be loaded in the reusable test assembly.
  • A fuel test assembly for use in the Fast Flux Test Facility (FFTF) has been developed that provides re-irradiation capability after interim discharge and reconstitution of the test pin bundle. This test vehicle permits irradiation test data to be obtained at multiple exposures on a few select test pins without the substantial expense of fabricating individual test assemblies as would otherwise be required. A variety of different test pin types can be loaded in the reusable test assembly.
  • A multiduct fuel pin test assembly (MFTA) has been developed for the breeder reactor fuel development programs in the Fast Flux Test Facility (FFTF) at HEDL. The MFTA, designed as a test vehicle consists essentially of two fuel pin regions, the inner test pin region and the outer driver pin region separated by the inner and the intermediate ducts. The objective of this report is to analyze and to determine to what extent the driver pins in the outer region of MFTA can be operated beyond the three reactor operating cycles (300 EFPD) set for the standard FFTF driver pins,more » so that the MFTA as a test vehicle can be reused for further irradiation tests. The analysis is to demonstrate that the driver pin cladding structural integrity can be maintained during an intended life by taking into account all possible operating conditions, namely, the normal steady-state and the most severe expected transient events.« less
  • An advanced oxide fuel assembly with ferritic/martensitic materials has successfully completed its sixth cycle of irradiation in the FFTF, reaching a peak pellet burnup greater than 100 MWd/KgM and a peak fast fluence greater than 15 x 10SS n/cmS. The cladding, wire-wrap, and duct material for the ACO-1 test assembly is the ferritic/martensitic alloy, HT9, which was chosen for use in long-lifetime fuel assemblies because of its good nominal temperature creep strength and low swelling rate. Valuable experience on the performance of HT9 materials has been gained from this test, advancing our quest for long-lifetime fuel. Pertinent data, obtained frommore » the ACO-1 test assembly, will support the irradiation of the Core Demonstration Experiment in FFTF.« less