Particle settling in a simulated melter discharge riser
| Autor: | Kevin M. Fox, Alexander W. Abboud, Donna Post Guillen |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Materials science
Waste management Hanford Site Mechanical Engineering chemistry.chemical_element 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences 0104 chemical sciences High-level waste Plutonium Clogging Waste treatment Settling chemistry Mechanics of Materials Particle General Materials Science Vitrification 0210 nano-technology |
| Zdroj: | Materials Letters. 236:38-41 |
| ISSN: | 0167-577X |
| Popis: | Legacy tank waste from plutonium production at the Hanford site is planned for vitrification at the Waste Treatment and Immobilization Plant (WTP). The accumulation of spinel crystals in the melter, discharge throat and riser is a possible operational concern wherein clogging and/or subsequent failure of the high level waste (HLW) melter may occur. Experiments were conducted in a full-scale, room temperature test platform that is prototypic of the WTP HLW melter to characterize the particle settling in the riser. The experimental system consists of an acrylic discharge riser and throat attached to a feed tank that allows for visual observation of the particle behavior. Silicone oil and magnetite particles were used as simulants for the molten glass and spinel crystals. A set of equations for wall-corrected, cloud settling of particles at low particle concentration is presented that closely matches the experimentally determined settling rate. |
| Databáze: | OpenAIRE |
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