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, at 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.
- Research Organization:
- Mound Facility, Miamisburg, OH (USA)
- DOE Contract Number:
- AC04-76DP00053
- OSTI ID:
- 6579822
- Report Number(s):
- MLM-2816(OP); CONF-810520-1
- Country of Publication:
- United States
- Language:
- English
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ACTINIDE ISOTOPES
ACTINIDE NUCLEI
ALPHA DECAY RADIOISOTOPES
CARBON ISOTOPES
COMPUTER CODES
DIFFERENTIAL EQUATIONS
EQUATIONS
EVEN-ODD NUCLEI
HEAVY NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPE SEPARATION
ISOTOPES
MATHEMATICAL MODELS
MINUTES LIVING RADIOISOTOPES
NEON ISOTOPES
NUCLEI
RADIOISOTOPES
SEPARATION PROCESSES
SULFUR ISOTOPES
URANIUM 235
URANIUM ISOTOPES
YEARS LIVING RADIOISOTOPES