Computer simulation and optimization of the oxidation process in the production of nitric acid in the Aspen Plus environment

Mukhitdinov, Djalolitdin; Sattarov, Olim; Akhmatov, Abdumalik; Abdullayeva, Dildora; Bekchanov, Elshod

doi:10.1051/e3sconf/202341705004

Cited by 8 publications

(1 citation statement)

References 16 publications

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“…It should be noted that the control system of the bacterial oxidation process is a complex object, and it is a non-stationary process. To control such systems, the expressed PIDadjuster was used [6][7][8][9].…”

Section: Methodsmentioning

confidence: 99%

Fuzzy-logic system for regulating the temperature regime of a bioreactor in the process of bacterial oxidation

Jumaev,

Makhmudov,

Isabekova

et al. 2024

E3S Web of Conf.

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In this article, a simulation model of an intelligent control system for a bioreactor used in the bacterial oxidation process of sulfide deposits with complex, gold-enriched content is developed using the functional blocks from the Fuzzy Logic Toolbox library in the MATLAB software package. Furthermore, the mathematical model of the bioreactor is represented through its transfer function in the significant adjustment channel. A rule base is established to regulate the variation of input and output parameters for the fuzzy control system. The study reveals that employing a fuzzy controller for bioreactor systems is an effective method for system adjustment.

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Section: Methodsmentioning

confidence: 99%

Fuzzy-logic system for regulating the temperature regime of a bioreactor in the process of bacterial oxidation

Jumaev,

Makhmudov,

Isabekova

et al. 2024

E3S Web of Conf.

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Pole placement with minimum gain and sparse static feedback

Sevinov,

Kadirov,

Boeva

et al. 2024

E3S Web Conf.

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The work addresses the issue of developing polar positioning algorithms for linear control systems with despotic thinning constraints on a static feedback matrix. The design of sparse-limiting feedback control systems is considered to be one of the more complex issues, but the issue of defining the sparse feedback matrix, which allows the selection of eigenvalues or, in other words, the placement of poles, has not been fully studied. Algorithms for determining the eigenvalues, i.e., solving the problem of pole placement and finding the optimal solution of the technological process control system are considered in the work. The results of numerical analysis confirmed the effectiveness of these algorithms, which allows them to be used in solving practical problems of synthesizing adaptive control systems for technological objects.

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Experimental study of hydrodynamics in a vortex contact apparatus

Bakhronov,

Akhmatov,

Sattarov

et al. 2024

E3S Web Conf.

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The outcomes of experimental investigations into ascertaining the hydraulic resistance of a vortex apparatus, featuring swirling gas and liquid flows under diverse design and operational conditions, are showcased. These examinations on pressure loss in vortex-type apparatuses facilitate the estimation of energy consumption for activities such as dust removal, contact heat exchange, gas absorption purification, and other processes conducted within gas-liquid systems. Notably, it has been observed that the hydraulic resistance of the scrutinized vortex apparatus is markedly lower compared to the pressure drop encountered in nozzle-type and plate-type apparatuses. Furthermore, it does not surpass the resistance exhibited by high-efficiency vortex-type apparatuses of alternative designs. The hydraulic resistance of hollow vortex apparatuses, equipped with tangential swirlers, is contingent upon variables such as gas phase velocity, liquid flow rate, apparatus design parameters, and the physical properties of the working media. Through the meticulous analysis of experimental data, calculation dependencies have been derived to determine the resistance coefficients of both dry and irrigated vortex apparatuses. These dependencies prove to be practical and convenient from an applied standpoint.

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Computer simulation and optimization of the oxidation process in the production of nitric acid in the Aspen Plus environment

Cited by 8 publications

References 16 publications

Fuzzy-logic system for regulating the temperature regime of a bioreactor in the process of bacterial oxidation

Fuzzy-logic system for regulating the temperature regime of a bioreactor in the process of bacterial oxidation

Pole placement with minimum gain and sparse static feedback

Experimental study of hydrodynamics in a vortex contact apparatus

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