Nuclear Waste Immobilization by Vitrification in a Cold Crucible Melter: 3D Magnetic Model of a Melter

2008 ◽  
Vol 1107 ◽  
Author(s):  
A. Bonnetier
Keyword(s):  
Hydraulic Properties ◽  
Cold Crucible ◽  
Nuclear Facilities ◽  
Electromagnetic Design ◽  
Waste Vitrification ◽  
3D Geometry ◽  
Waste Immobilization ◽  
Magnetic Model ◽  
Nuclear Waste Immobilization ◽  
Physical Phenomena

AbstractThe design and development of prototype cold crucible melters for waste vitrification are based on models of the basic physical phenomena, including electromagnetic induction and the thermal and hydraulic properties in natural or forced convection. The complexity of new nuclearized facilities results in significant errors on the results of predictive models based on 2D axisymmetric geometry that can only be resolved by modeling the device in 3D geometry. This document discusses the specification and electromagnetic design of a melter carried out using electromagnetic computation software, FLU3D, developed in 3D geometry by Cedrat. The principles and results of this study are directly applicable to nuclear facilities with allowance for the particular requirements of a nuclearized environment.

scholarly journals Vitreous Materials for Nuclear Waste Immobilisation and IAEA Support Activities

MRS Advances ◽  
2016 ◽  
Vol 1 (63-64) ◽  
pp. 4201-4206 ◽  
Author(s):  
Rebecca A. Robbins ◽  
Michael I. Ojovan
Keyword(s):  
Radioactive Waste ◽  
Nuclear Waste ◽  
Chemical Elements ◽  
Phosphate Glasses ◽  
Waste Vitrification ◽  
Waste Immobilization ◽  
High Level Nuclear Waste ◽  
Nuclear Waste Immobilization ◽  
High Level ◽  
High Degree

ABSTRACTVitreous materials are the overwhelming world-wide choice for the immobilisation of HLW resulting from nuclear fuel reprocessing due to glass tolerance for the chemical elements found in the waste as well as its inherent stability and durability. Vitrification is a mature technology and has been used for high-level nuclear waste immobilization for more than 50 years. Borosilicate glass is the formulation of choice in most applications although other formulations are also used e.g. phosphate glasses are used to immobilize high level wastes in Russia. The excellent durability of vitrified radioactive waste ensures a high degree of environment protection. Waste vitrification gives high waste volume reduction along with simple and cheap disposal facilities. Although vitrification requires a high initial investment and then operational costs, the overall cost of vitrified radioactive waste is usually lower than alternative options when account is taken of transportation and disposal expenses. Glass has proven to be also a suitable matrix for intermediate and low-level radioactive wastes and is currently used to treat legacy waste in USA, and NPP operational waste in Russia and South Korea. This report is also outlining IAEA activities aiming to support utilisation of vitreous materials for nuclear waste immobilisation.

Crystallization of neodymium-rich phases in silicate glasses developed for nuclear waste immobilization

2006 ◽  
Vol 354 (1-3) ◽  
pp. 143-162 ◽  
Author(s):  
D. Caurant ◽  
O. Majerus ◽  
P. Loiseau ◽  
I. Bardez ◽  
N. Baffier ◽  
...  
Keyword(s):  
Nuclear Waste ◽  
Silicate Glasses ◽  
Waste Immobilization ◽  
Nuclear Waste Immobilization

scholarly journals Order parameter and connectivity topology analysis of crystalline ceramics for nuclear waste immobilization

2014 ◽  
Vol 26 (48) ◽  
pp. 485011 ◽  
Author(s):  
Adam Archer ◽  
Henry R Foxhall ◽  
Neil L Allan ◽  
David S D Gunn ◽  
John H Harding ◽  
...  
Keyword(s):  
Nuclear Waste ◽  
Order Parameter ◽  
Topology Analysis ◽  
Waste Immobilization ◽  
Nuclear Waste Immobilization
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