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Numerical simulation of enrichment of the air–helium mixture with a bifunctional sorbent based on glass microspheres
A. S. Vereshchaginabc, I. V. Kazaninab, V. N. Zinovieva, V. M. Fominab a Khristianovich Institute of Theoretical and Applied Mechanics, Siberian Branch, Russian Academy of Sciences, 630090, Novosibirsk, Russia
b Novosibirsk State University, 630090, Novosibirsk, Russia
c Novosibirsk State Technical University, 630073, Novosibirsk, Russia
Abstract:
A hyperbolic character of the convective part of the flow of an air–helium mixture through a granulated sorbent layer with allowance for the Forchheimer filtration is demonstrated. A numerical model of a one-dimensional flow of the air–helium mixture through an adsorber filled by a granulated sorbent with due allowance for air and helium diffusion inward cylindrical granules and helium confinement in microspheres. Within the framework of this model, verification of a numerical algorithm in problems of gas filtration through a porous medium and propagation of a pressure wave formed by the incident shock wave over a gas medium is performed. Experimental and numerical data are obtained and are found to be in good agreement. The enrichment phase is modeled by the method of short-cycle adsorption with the use of a bifunctional sorbent based on microspheres. It is demonstrated that the mass fraction of helium in the air–helium mixture can be almost doubled (from 0.7 to 1.3%) with the helium extraction degree of 90.4%.
Keywords:
composite sorbent, helium, microspheres, membrane-sorption method, numerical simulation, short-cycle adsorption, hyperbolic model.
Received: 30.12.2021 Revised: 15.03.2022 Accepted: 28.03.2022
Citation:
A. S. Vereshchagin, I. V. Kazanin, V. N. Zinoviev, V. M. Fomin, “Numerical simulation of enrichment of the air–helium mixture with a bifunctional sorbent based on glass microspheres”, Prikl. Mekh. Tekh. Fiz., 63:5 (2022), 3–19; J. Appl. Mech. Tech. Phys., 63:5 (2022), 731–745
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https://www.mathnet.ru/eng/pmtf144 https://www.mathnet.ru/eng/pmtf/v63/i5/p3
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Abstract page: | 53 | References: | 14 | First page: | 4 |
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