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A generalization of the virtual components concept for numerical simulation of multi-component isotope separation in cascades.

A generalization of the virtual components concept for numerical simulation of multi-component isotope separation in cascades.

Authors :
Zeng, Shi
Cheng, Lu
Jiang, Dongjun
Borisevich, Valentin
Sulaberidze, Georgy
Source :
Chemical Engineering Science. Dec2014, Vol. 120, p105-111. 7p.
Publication Year :
2014

Abstract

The total flow of the optimal isotope separation cascade should be kept at a minimum to ensure economic viability. The concept of virtual components has proven useful in optimizing and designing cascades for multi-component isotope separation, but is only used in cases with an available analytical solution. Practical situations are complicated and resort to numerical simulations because there are no analytical solutions. Therefore, a generalization for numerical methods is required. A major difficulty in generalization is that mass conservation requires the concentration of a virtual component to be zero, which causes numerical problems. This paper proposes an approach to overcome this difficulty and develops a numerical method accordingly. The matched-R cascade is used as an example for numerical experiments to show that a cascade is solely determined by the choice of the two virtual components, and to demonstrate how the numerical method is applied to find the optimal cascade. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
00092509
Volume :
120
Database :
Academic Search Index
Journal :
Chemical Engineering Science
Publication Type :
Academic Journal
Accession number :
99404733
Full Text :
https://doi.org/10.1016/j.ces.2014.08.054