Static Optimization of Rectification Processes Using Mobile Control Actions

Sheikus, Anton; Trishkin, Vladislav

doi:10.15588/1607-3274-2018-1-22

Cited by 4 publications

(6 citation statements)

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“…Well-known methods for optimization of the rectification process [14,15] based on the normalized criterion which accounts for process performance and power consumption:…”

Section: Methods For Optimizing the Rectification Process Using Mobilementioning

confidence: 99%

“…2) The initial approximation of target component concentration in the distillate is taken and the problem of optimization by the criterion of maximizing performance and minimizing power consumption is solved by the method described in [15]. As such, for each requirement to distillate quality, there are defined values of normalized criteria (6) and (8).…”

Section: Methods For Optimizing the Rectification Process Using Mobilementioning

confidence: 99%

“…Mobile process control actions lie in a change of column's feed point. The basis of static process optimization with the use of the cations is reviewed in [15,16]. The solution to the problem is obtained with simultaneous use of criteria of maximizing performance and minimizing power consumption based on the required concentration of the target component in the final.…”

Section: Introductionmentioning

confidence: 99%

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Optimization of Rectification Process Using Mobile Control Action With Account for Criterion of Maximizing Separation Quality

Sheikus¹,

Кovalenko²,

Kotok³

et al. 2020

Eureka: PE

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The use of mobile control action allows the improvement of technical-economical characteristics of the rectification process and allows for operation regimes that can’t be achieved with traditional control approaches. Mobility lies in the ability to choose the movement law of compound source and energy in the spatial region of apparatus. Mobile control over the rectification process can be realized by changing the column feed point. An optimal number of feed trays must be determined with consideration of cost and output performance, and also the quality of the target product. The work aimed to develop a method for calculating optimal control action, including mobile ones, on the rectification process with additional account for the criterion of maximizing quality of target product, and also, comparison of static column profiles that are optimal by different criteria. Mathematical modeling of the rectification column for separation of water-methanol mixture revealed that increasing quality requirements to target products decreases the number of the optimal feed tray. A method was described for process optimization by the normalized criterion that accounts for separation quality and power consumption. The method was used to determine optimal values of traditional (flows of heat into the column's cube and phlegm) and mobile (feed tray number) control actions that provide the best technical-economical parameters of the rectification column. A proof is presented for the existence and uniqueness of solutions for this optimization problem and the effectiveness of using mobile actions for different requirements to target. The optimal temperature profile of the culms was studied and their characteristic features that correspond to different specific and normalized optimization criteria were found

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“…Well-known methods for optimization of the rectification process [14,15] based on the normalized criterion which accounts for process performance and power consumption:…”

Section: Methods For Optimizing the Rectification Process Using Mobilementioning

confidence: 99%

Section: Methods For Optimizing the Rectification Process Using Mobilementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Optimization of Rectification Process Using Mobile Control Action With Account for Criterion of Maximizing Separation Quality

Sheikus¹,

Кovalenko²,

Kotok³

et al. 2020

Eureka: PE

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show abstract

“…Thus, when controlling the process of distillation together with mobile, traditional control actions, consisting in changes of heat consumption in the reboiler and reflux flow rate, are also required. The calculation of the optimal values of these actions is implemented using a predictive nonlinear mathematical model of statics by the method of optimization of the distillation process [6].…”

Section: Research Of Transient Responses In Automatic Mobile Control mentioning

confidence: 99%

“…In the direction of mobile control of distillation processes, the problems of developing an adapted static column model and choosing a solution method [5], process optimization [6] are solved. It is proved that the use of mobile control actions provides previously unattainable stationary modes of operation of apparatus, but dynamic modes remain unexplored.…”

Section: Introductionmentioning

confidence: 99%

Research of Transient Responses in Automatic Mobile Control Systems of Distillation Process

Sheikus

2019

Technology transfer: fundamental principles and innovative tech

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In modern conditions of growth of informatization, to ensure the reliability of the functioning of distributed computer information-diagnostic and control systems, which are mandatory for consideration, there are problems of assessing security and implementing protection of operational information. The state of information protection and the reliability of computer systems for corporate monitoring and diagnosis of the railway power supply system are analyzed. The main tasks in the intellectualization of component systems are defined, namely traction electric network. The principles of information protection are proposed, which include: active protection of information; convincing protection of information, consisting in the justification of the design and measures to protect the conditions and circumstances. Such a principle as the continuity of the information protection process provides for the organization of the protection of objects at all stages of the development and operation life cycle. A variety of information protection tools provides for the exclusion of patterns at the stage of selecting cover objects and various ways to implement protection, not excluding the use of standard solutions. The combination of the above principles in the work is called an integrated approach to information security, which is the basis for the creation of computer information protection systems. According to the sphere of information security, this approach complies with international ISO standards, and for the technical protection of information and state standards it complies with the requirements of existing national legislative and regulatory documents. To ensure the security of information stored and processed in computer systems, the coordinated application of various security measures is necessary.

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Математичне Моделювання Динамічних Режимів Процесу Ректифікації При Застосуванні Рухливих Керуючих Впливів

Sheikus¹

2020

ATBP

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Підвищення якості керування об'єктами з розподіленими параметрами, до яких відноситься процес ректифікації, можливо досягти використанням рухливих впливів. Відомо, що переміщення за висотою колони точки подання живлення або перерозподіл даного потоку між двома контактними пристроями апарату дозволяє забезпечити недосяжні традиційним керуванням техніко-економічні показники стаціонарних режимів. При цьому перехідні процеси в колоні при використанні рухливих впливів залишалися недослідженими. У статті розроблено математичну модель динаміки процесу ректифікації, що враховує рухливі керуючі впливи, а також досліджено особливості динамічних режимів роботи колони при їх використанні. В моделі передбачено можливість реалізації різних за формами і інтенсивностями збурень і керуючих впливів за декількома каналами одночасно або у визначені моменти часу. Модель дозволяє проводити розрахунки процесів багатокомпонентної і складної ректифікації, може використовуватися при моделюванні пускових режимів. Процес ректифікації внаслідок використання рухливих впливів виходить зі стану динамічної рівноваги. Встановлено, що новий стаціонарний режим досягається регулюванням тиску наверху колони, рівнів в ємностях для збору кубового залишку і дистиляту. Запропоновано використання ПІД-регуляторів з впливами на витрати холодоагенту в конденсатор і продуктів поділу. Динамічна модель процесу доповнена описом даних контурів автоматичного регулювання. З використанням розробленої моделі проведено обчислювальні експерименти на прикладі колони для поділу суміші метанол-вода. Доведено, що перехідні процеси при використанні рухливих керуючих впливів на процес ректифікації характеризуються допустимими показниками якості.

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Static Optimization of Rectification Processes Using Mobile Control Actions

Cited by 4 publications

References 0 publications

Optimization of Rectification Process Using Mobile Control Action With Account for Criterion of Maximizing Separation Quality

Optimization of Rectification Process Using Mobile Control Action With Account for Criterion of Maximizing Separation Quality

Research of Transient Responses in Automatic Mobile Control Systems of Distillation Process

Математичне Моделювання Динамічних Режимів Процесу Ректифікації При Застосуванні Рухливих Керуючих Впливів

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