Rational modes of operation of complex gas transmission systems

Grudz, V. Ya.; Grudz, Ya. V.; Tereshchenko, R. V.; Hershun, B. І.

doi:10.31471/1993-9973-2021-2(79)-73-79

Cited by 2 publications

(2 citation statements)

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“…Bilobran. It should be noted that the research papers [22,23] investigated the influence of operation parameters of a non-gas pipeline on its flow capacity, and the works [24,25] describe the stresseddeformed state of line part of gas pipelines, problems of forecasting durability of pipelines due to low cycle stresses were considered. The Institute of Electric Welding named after E.O.…”

Section: Current State Of the Researched Issuementioning

confidence: 99%

Predicting pipeline life after an emergency repair

Palchyk

2023

MATEC Web Conf.

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The operating conditions of main pipelines are analysed and it is established that fatigue and corrosion damage are the main causes of their destruction. The paper provides a substantiated answer to the question of the effectiveness of repairs using overlay elements. The number of load cycles that will take place before the destruction of the emergency section after repair with the use of overlay elements is determined by an example.

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Section: Current State Of the Researched Issuementioning

confidence: 99%

Predicting pipeline life after an emergency repair

Palchyk

2023

MATEC Web Conf.

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“…Зв'язки між параметрами процесів настільки складні і важко простежуються, що для кожного випадку треба проводити розрахунок з урахуванням нелінійності, інерційності, змінності в часі параметрів. Аналітичні рівняння отримують шляхом теоретичного аналізу процесів тепло-і масопереносу, фізико-хімічних перетворень і т. д. Найбільші труднощі виникають при знаходженні чисельних значень коефіцієнтів отриманих рівнянь [6,7]. Для цього необхідно заздалегідь знати геометрію елементу, швидкості руху, коефіцієнти теплопередачі і т. д. Критерієм правильності складених рівнянь є збіг з певною точністю їх чисельних рішень з експлуатаційними даними.…”

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Principles of Optimizing Control of Gas Transportation Systems Under Conditions of Their Underload

Grudz¹,

Grudz²,

Protsiuk³

et al. 2022

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The work is devoted to establishing the regularities of the flow of technological processes in gas transportation systems to optimize the operational management of operating modes under the condition of their incomplete loading. On the basis of the study of the stationary modes of operation of the gas transportation system with changes in the volume of gas pumping, the principle of building a mathematical model based on the superposition of the characteristics of linear sections and compressor stations is proposed, which makes it possible to estimate the throughput of the system, parameters of the operating mode, and energy consumption for gas transportation. The methods of building a system of integral influence coefficients for gas transportation systems in order to evaluate the parameters of its operation in stationary modes of operation are presented. Each change in the technological parameters of the operating mode at the entrance of the gas transport system will necessarily cause a reaction of the system, which will manifest itself in a change of the corresponding parameters at its exit. It is obvious that the input and output parameters of the system are interconnected by a complex system of equations, the implementation of which requires certain time costs and the collection of additional information about the technical and hydro-gas-dynamic conditions of the system at each moment of time. In the conditions of incomplete loading of the gas transportation system, which involves frequent changes in its operation modes, the implementation of the task is not always possible. It is proposed to create a system of integral influence coefficients that characterize the ratio of input and output information in various stationary modes and to formally present it in a matrix form. On the basis of the research results, the principle of optimizing the operation modes of the gas transportation system under conditions of partial loading according to the criterion of minimum energy consumption for gas transportation at the maximum level of gas supply reliability is proposed.

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Rational modes of operation of complex gas transmission systems

Cited by 2 publications

References 0 publications

Predicting pipeline life after an emergency repair

Predicting pipeline life after an emergency repair

Principles of Optimizing Control of Gas Transportation Systems Under Conditions of Their Underload

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