Generalized computer model of the transient behavior of multicomponent isotope separation cascades
The time dependent performance of large separation systems is a major consideration in the enrichment of the isotopes of elements that have a direct role in nuclear fuel cycles. The transient behavior of multicomponent separation cascades is described by a set of nonlinear partial differential equations that are similar in form for chemical exchange, distillation, gaseous diffusion, thermal diffusion, and other countercurrent processes. The Mound computer model is set up to solve the differential equations by a fast, implicit forward difference technique. Systems of up to 10 components can be handled with a wide variety of multiple input and output streams. With modifications, the program can be used to model systems of two or more cascades. It has been applied to the separation of the isotopes of uranium, the noble gases, carbon, oxygen, nitrogen, chlorine, sulfur, and calcium. A neon isotope separation problem is given as an example of the precision with which performance can be predicted for multicomponent systems. 7 figures, 1 table.
- Research Organization:
- Mound Facility, Miamisburg, OH
- DOE Contract Number:
- AC04-76DP00053
- OSTI ID:
- 6172245
- Journal Information:
- Sep. Sci. Technol.; (United States), Journal Name: Sep. Sci. Technol.; (United States) Vol. 16:10; ISSN SSTED
- Country of Publication:
- United States
- Language:
- English
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ACTINIDE ISOTOPES
ALKALINE EARTH ISOTOPES
CALCIUM ISOTOPES
CARBON ISOTOPES
CHLORINE ISOTOPES
COMPUTER CALCULATIONS
COMPUTERIZED CONTROL SYSTEMS
CONTROL SYSTEMS
DIFFERENTIAL EQUATIONS
DIFFUSION
DISPERSIONS
DISTILLATION
EQUATIONS
EXTRACTION APPARATUSES
EXTRACTION COLUMNS
FORECASTING
FUEL CYCLE
GASEOUS DIFFUSION PROCESS
ISOTOPE SEPARATION
ISOTOPES
MATHEMATICAL MODELS
MIXTURES
MODIFICATIONS
NEON ISOTOPES
NITROGEN ISOTOPES
NUMERICAL SOLUTION
OXYGEN ISOTOPES
PARTIAL DIFFERENTIAL EQUATIONS
SEPARATION EQUIPMENT
SEPARATION PROCESSES
SPECIFICATIONS
SULFUR ISOTOPES
THERMAL DIFFUSION
TIME DEPENDENCE
URANIUM ISOTOPES