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    Wyświetlanie 1-3 z 3
    Tytuł:
    Non-contact method of estimation of stress-strain state of underground pipelines during transportation of oil and gas
    Autorzy:
    Droździel, Paweł
    Vitenko, Tetiana
    Zhovtulia, Liubomyr
    Yavorskyi, Andrii
    Powiązania:
    https://bibliotekanauki.pl/articles/2091143.pdf
    Data publikacji:
    2020
    Wydawca:
    Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
    Tematy:
    underground pipeline
    methodology
    risk assessment
    mathematic model
    axis coordinates
    rurociąg podziemny
    metodologia
    ocena ryzyka
    model matematyczny
    współrzędne osi
    Opis:
    Development and implementation of contactless methods for determining the stress-strain state of pipelines in the process of transportation of energy hydrocarbons is important for ensuring its safe operation. The authors developed a method for determining the change in the stress-strain state of the underground part of the main oil and gas pipelines according to the data about the displacement of a certain set of points of the axis of the pipeline. This study was conducted on a linear section of the main gas pipeline, where a landslide in 2010 created a force pressure on the pipeline, resulting in a pipeline rupture.
    Źródło:
    Zeszyty Naukowe. Transport / Politechnika Śląska; 2020, 109; 17--32
    0209-3324
    2450-1549
    Pojawia się w:
    Zeszyty Naukowe. Transport / Politechnika Śląska
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Modeling the corrosive destruction of underground degassing pipelines
    Autorzy:
    Yegorchenko, Rostyslav
    Yavorskyi, Andrii
    Dyachkov, Pavel
    Powiązania:
    https://bibliotekanauki.pl/articles/27324354.pdf
    Data publikacji:
    2023
    Wydawca:
    Instytut Techniki Górniczej KOMAG
    Tematy:
    degassing
    underground vacuum gas pipeline
    methane-air mixture
    monitoring
    corrosion
    output
    rurociąg gazowy
    korozja
    Opis:
    The general frequency of development of pitting corrosion was established, taking into account the results of the analysis of mine waters and foreign materials, which are favorable conditions for theformation of corrosion of steel degassing pipelines. A base of initial data was created for modeling the corrosion process of a steel degassing gas pipeline at different points in time: the beginning of the corrosion process, its development, and the end of the process. Stress distribution, corrosion potential,as well as anodic and cathodic current densities depending on the size of the corrosion crack and the longitudinal deformation of the rocks of the sole of the production was analysed.Ithas been proven that the high level of corrosion processes of underground pipelines is the result of the interaction of the metal, which acts as an electrode, with groundwater, which acts as anelectrolyte, while the determining factors of the corrosion process are the electrical conductivity of the rocks of the bottom of the mine and the deformation processes in the pipelines. The reason of low service life of underground degassing pipelines, which are constantly exposed to mechanical and electrochemical corrosion, have been established.
    Źródło:
    Mining Machines; 2023, 41, 4; 220--230
    2719-3306
    Pojawia się w:
    Mining Machines
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Determination of conditions for loss of bearing capacity of underground ammonia pipelines based on the monitoring data and flexible search algorithms
    Autorzy:
    Mysiuk, R.V.
    Yuzevych, V.M.
    Yasinskyi, M.F.
    Kniaz, S.V.
    Duriagina, Z.A.
    Kulyk, V.V.
    Powiązania:
    https://bibliotekanauki.pl/articles/24200550.pdf
    Data publikacji:
    2022
    Wydawca:
    Stowarzyszenie Komputerowej Nauki o Materiałach i Inżynierii Powierzchni w Gliwicach
    Tematy:
    underground ammonia pipeline
    pump station
    thermal background
    corrosion current
    data processing
    cloud computing
    podziemny rurociąg amoniaku
    stacja pomp
    tło termiczne
    prąd korozyjny
    przetwarzanie danych
    chmura obliczeniowa
    Opis:
    Purpose: The study aims to diagnose the corrosion current density in the coating defect on the outer surface of the ammonia pipe depending on the distance to the pumping station, taking into account the interaction of media at the soil-steel interface and using modern graphical data visualization technologies and approaches to model such a system. Design/methodology/approach: The use of an automated system for monitoring defects in underground metallic components of structures, in particular in ammonia pipelines, is proposed. The use of the information processing approach opens additional opportunities in solving the problem of defect detection. Temperature and pressure indicators in the pipeline play an important role because these parameters must be taken into account in the ammonia pipeline for safe transportation. The analysis of diagnostic signs on the outer surface of the underground metallic ammonia pipeline is carried out taking into account temperature changes and corrosion currents. The parameters and relations of the mathematical model for the description of the influence of thermal processes and mechanical loading in the vicinity of pumping stations on the corresponding corrosion currents in the metal of the ammonia pipeline are offered. Findings: The paper evaluates the corrosion current density in the coating defect on the metal surface depending on the distance to the pumping station and the relationship between the corrosion current density and the characteristics of the temperature field at a distance L = 0…20 km from the pumping station. The relative density of corrosion current is also compared with the energy characteristics of the surface layers at a distance L = 0…20 km from the pumping station. An information system using cloud technologies for data processing and visualization has been developed, which simplifies the process of data analysis regarding corrosion currents on the metal surface of an ammonia pipeline. Research limitations/implications: The study was conducted for the section from the pumping station to the pipeline directly on a relatively small data set. Practical implications: The use of client-server architecture has become very popular, thanks to which monitoring can be carried out in any corner of the planet, using Internet data transmission protocols. At the same time, cloud technologies allow you to deploy such software on remote physical computers. The use of the Amazon Web Service cloud environment as a common tool for working with data and the ability to use ready-made extensions is proposed. Also, this cloud technology simplifies the procedure of public and secure access to the collected information for further analysis. Originality/value: Use of cloud environments and databases to monitor ammonia pipeline defects for correct resource assessment.
    Źródło:
    Archives of Materials Science and Engineering; 2022, 115, 1; 13--20
    1897-2764
    Pojawia się w:
    Archives of Materials Science and Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-3 z 3

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