|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Accident Tolerant Fuels for Light Water Reactor
||F-19: Chromium-based Accident-tolerant Fuel Concept
||Koroush Shirvan, Yifeng Che, Arunkumar Seshadri, Martin Sevecek, Malik Wagih, Anil Gurgen, Mohammad Shahin, Bren Philips
|On-Site Speaker (Planned)
Near term nuclear accident tolerant fuel (ATF) concepts are those that maintain the fuel cost similar to current UO2-Zircaloy system while providing additional corrosion resistance and structural stability at high temperatures. Chromia doped fuel pellets (UO2 with ~1600 ppm Cr2O3) and Chromium coated cladding (~15-30 um thick) are current being investigated as a near term ATF concept. In this work, verification and validation of both doped fuel and Cr-coated cladding is presented using the INL multi-physics fuel performance tool, BISON. The lower fission gas release of the doped pellets improve the rod performance under both simulated rapid power ramp and loss-of-coolant accident scenarios. The Cr-coated cladding was proven durable with enhanced corrosion resistant at nuclear reactor operating and accident conditions. However, no significant gain in time to the onset of cladding melt was calculated for the chromium-based ATF concept.
||Planned: Supplemental Proceedings volume