On ideal and optimum cascades of gas centrifuges with variable overall separation factors

Borisevich, V. D.; Borshchevskiy, M.A.; Zeng, Shi; Jiang, Dongxiang

doi:10.1016/j.ces.2014.05.031

Cited by 20 publications

(3 citation statements)

References 13 publications

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“…In the optimum binary mixture cascade or multi component model cascades, calculating of cuts is one of the essential parts of work. In the optimum cascade the total flow reaches to its minimum value and it can be better than ideal cascade [1][2][3]. The cut values of stages with no equipment for controlling the stage cut is depend on the external (pressure of the feed, product and waste lines) and internal parameters (machine characteristics) of the gas centrifuge.…”

Section: Introductionmentioning

confidence: 99%

“…In 2012 Palkin and Igoshin proposed a method for calculating and optimizing a cascade of gas centrifuge with an arbitrary scheme in an independent quantity of cut which separation factor is depend on cut and feed flow rate [6]. In 2014 Borisevich et al [2] proposed that it is possible to find the optimum parameters of a cascade that operates in the minimum total flow. In general behavior the separation work, U, is a function of F, α and θ [7], however experimental data show that U is a function of the feed flow F, θ and pressure in the product line, Pp [8,9].…”

Section: Introductionmentioning

confidence: 99%

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Investigation of Cut Control Equations in the Gas Centrifuge Cascades

Norouzi

Khajenoori

Safdari

et al. 2021

NEP

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Stage cut control and simulation are the most important aspects in the optimum binary mixture or multi-component multiobjective cascades. Numerical investigation revealed that by controlling the cut of a separation cascade, defined as the ratio of the product rate to the feed rate, it is always possible to separate a multi-component mixture into two specified groups of components, a light group, and a heavy group, in just one separation run. In this paper, the equations related to the cut control are introduced and it is proposed that for controlling stage cuts, putting one valve in the product section of each stage is enough. By solving the set of non-linear equations related to the machine behavior, valve, and pressure drop in the pipelines and junctions, the valve setting for each stage can be obtained. In the end, some examples of an optimal cascade are studied and valve setting parameters are obtained.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Investigation of Cut Control Equations in the Gas Centrifuge Cascades

Norouzi

Khajenoori

Safdari

et al. 2021

NEP

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“…Borosevich et al proposed that it is possible to find the optimum parameters of a cascade that operates in the minimum total flow. In this paper, we proposed a new algorithm to design functional symmetric and asymmetric cascades with two correlations that define gas centrifuge characteristics [14]. In the separation unit, among five variables α, θ, β, γ, and Cf, three variables are independent [13].…”

Section: Introductionmentioning

confidence: 99%

A new algorithm for simulation of the functional symmetric and asymmetric cascades

Norouzi

Khajenoori

Safdari

et al. 2021

NEP

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Design of cascade based on operational functions of a single machine is an important goal in the isotope separation theory. By recognizing the behavior of gas in a centrifuge machine, a cascade with desirable properties and parameters can be designed. In the classical theory of multistage separation installation, it has been shown that in an ideal cascade (no mixing) the total number of separation elements flow is minimal, and accordingly, the maximum separation work unit (SWU) of the cascade occurs. In the practical form, the cut and separation factors may assume to be dependent on the feed flow. Using specific functional parameters, the algorithm, design the functional cascades (DFUNCAS), can design the functional symmetric and asymmetric cascades. DFUNCAS can design a cascade with stated waste and product concentration. Furthermore, the program can design symmetric and asymmetric cascades. In this work, four test cases were considered and the results show that the DFUNCAS can design any kind of cascade accurately.

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