About this Abstract |
Meeting |
MS&T24: Materials Science & Technology
|
Symposium
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Ceramic Materials for Nuclear Energy Systems
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Presentation Title |
Progress on Modeling Refractory Corrosion of Waste Glass Melters |
Author(s) |
Donna P. Guillen, Tongan Jin, Jaroslav Klouzek, Richard Pokorny, Jake Amoroso, Mark Hall, John Acierno, Daniel Yankura, Albert A. Kruger |
On-Site Speaker (Planned) |
Donna P. Guillen |
Abstract Scope |
This presentation outlines progress in modeling refractory corrosion in nuclear waste glass melters. Refractory brick degradation significantly affects melter lifespan for nuclear waste vitrification. Corrosion rates are determined through three types of lab experiments for set periods with Monofrax® K3 refractory coupons exposed to various glass compositions heated to melter temperatures: (1) static immersion of coupons in molten glass, (2) coupons placed in a crucible where molten glass is agitated by injecting air to simulate operational conditions in bubbled melter, and (3) a dynamic test where coupons rotate within molten glass. Afterwards, coupon corrosion is measured to determine the mass loss rate at the neck and in the submerged region of the coupons. These corrosion rates are integrated into computational fluid dynamics models with the goal of providing more accurate predictions of the useful life of melter refractory linings. The presentation covers modeling methods, challenges, and initial findings. |