NSUF 10-224: Hydride LWR Fuel Rod Irradiation

Three hydride mini-fuel rods were fabricated and irradiated at the MIT nuclear reactor with a maximum burnup of 0.31% FIMA or ∼5 MWd/kgU equivalent oxide fuel burnup. Fuel rods consisted of uranium-zirconium hydride (U (30 wt%)ZrH1.6) pellets clad inside a LWR Zircaloy-2 tubing. The gap between the fuel and the cladding was filled with lead-bismuth eutectic alloy to eliminate the gas gap and the large temperature drop across it. Each mini-fuel rod was instrumented with two thermocouples with tips that are axially located halfway through the fuel centerline and cladding surface. In-pile temperature measurements enabled calculation of thermal conductivity in this fuel as a function of temperature and burnup. In-pile thermal conductivity at the beginning of test agreed well with out-of-pile measurements on unirradiated fuel and decreased rapidly with burnup.

Dodatne informacije

Polje Vrednost
Awarded Institution University of California-Berkeley
CINR Number 224
Embargo End Date 2026-02-27
Facility Tech Lead Stuart Maloy
NSUF Call FY 2010 Fall Solicitation for User Proposals
PI Donald Olander
Project Member Kurt Terrani - Oak Ridge National Laboratory (https://orcid.org/0000-0001-5143-128X)
Project Member Mehdi Balooch, senior Scientist - University of California-Berkeley (https://orcid.org/0000-0002-1611-6273)
Project Type Irradiation/PIE
Publication Performance evaluation and post-irradiation examination of a novel LWR fuel composed of U0.17ZrH1.6 fuel pellets bonded to Zircaloy-2 cladding by lead bismuth eutectic Mehdi Balooch, Edgar Buck, Andy Casella, Peter Hosemann, Donald Olander, Dave Senor, Kurt Terrani Journal of Nuclear Materials 486 2017-04-01 http://www.sciencedirect.com/science/article/pii/S0022311516306043
Publication Hydride fuel irradiation in MITR-II: Thermal design and validation results David Carpenter, Gordon Kohse, Lin-wen Hu Nuclear Engineering and Design 277 2014-06-04 https://www.sciencedirect.com/science/article/pii/S002954931400346X
Publication Irradiation effects on thermal properties of LWR hydride fuel Mehdi Balooch, Donald Olander, Kurt Terrani, David Carpenter, Gordon Kohse, Dennis Keiser, Mitch Meyer Journal of Nuclear Materials 486 2017-04-01 http://www.sciencedirect.com/science/article/pii/S0022311516305086?via%3Dihub
Publication Accident tolerant fuels for LWRs: A perspective Lance Snead, Kurt Terrani, Steven Zinkle Journal of Nuclear Materials 448 2014-05-01 https://www.sciencedirect.com/science/article/pii/S0022311513012919#!
RTE Number 224