Academic literature on the topic 'Pressure pipelines'

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Journal articles on the topic "Pressure pipelines"

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Zhang, Xiaotian, and Xingbing Xie. "Model for the Failure Prediction Mechanism of In-Service Pipelines Based on IoT Technology." Processes 12, no. 8 (2024): 1642. http://dx.doi.org/10.3390/pr12081642.

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With the rapid increase in pipeline mileage in China, the accurate prediction of corrosion issues in in-service pipelines has become crucial for ensuring safe pipeline operation. Traditional pipeline leakage monitoring methods are significantly limited by human factors and equipment precision, making it challenging to predict and identify leakage points accurately. Therefore, aligned with the trend of intelligent pipeline development, this study aims to construct a failure pressure prediction mechanism model for corroded pipelines based on IoT technology. This model leverages intelligent sensi
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Peletiri, Suoton, Nejat Rahmanian, and Iqbal Mujtaba. "CO2 Pipeline Design: A Review." Energies 11, no. 9 (2018): 2184. http://dx.doi.org/10.3390/en11092184.

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There is a need to accurately design pipelines to meet the expected increase in the construction of carbon dioxide (CO2) pipelines after the signing of the Paris Climate Agreement. CO2 pipelines are usually designed with the assumption of a pure CO2 fluid, even though it usually contains impurities, which affect the critical pressure, critical temperature, phase behaviour, and pressure and temperature changes in the pipeline. The design of CO2 pipelines and the calculation of process parameters and fluid properties is not quite accurate with the assumption of pure CO2 fluids. This paper review
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Radermacher, Ladislau, Cristian Rădeanu, and Ludovic Călcîi. "Analytical Examination of Deformational Dynamics in Above-Ground Pipelines Compromised by Corrosion Under the Influence of Internal Pressurization." Mining Revue 29, no. 4 (2023): 106–12. http://dx.doi.org/10.2478/minrv-2023-0035.

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Abstract Corrosion is a major factor responsible for failures and leaks in gas pipelines. In the context of external corrosion, the internal pressure within pipes can create stress and strain concentrations in the area affected by corrosion. These phenomena, combined with the presence of cavities or cracks resulting from the corrosion process, amplify the risk of pipeline failure. As corrosion reduces the wall thickness of the pipe, its ability to withstand internal pressures decreases significantly. Consequently, a pipe affected by corrosion may collapse at a much lower pressure compared to a
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Volodymyr, Cherniuk, Hnativ Roman, Kravchuk Oleksandr, Orel Vadym, Bihun Iryna, and Cherniuk Matvii. "The problem of hydraulic calculation of pressure distribution pipelines." Eastern-European Journal of Enterprise Technologies 6, no. 7 (114) (2021): 93–103. https://doi.org/10.15587/1729-4061.2021.246852.

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Most production technologies require a uniform flow path of liquid from pressure distribution pipelines. To achieve this goal, it is proposed to introduce polymer additives into the liquid flow or to use converging distribution pipelines with a continuous longitudinal slot in the wall. To reduce the uneven operation of the distribution pipeline during discrete liquid dispensing, it is proposed to use cylindrical output rotary nozzles with a lateral orthogonal entry of the jet into the nozzle. The problem is the lack of methods for accurate hydraulic calculation of the operation of distribution
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Zhang, Xiaolei, Xiaoyi Guo, Yading Chen, Chen Yang, Shuyu Liu, and Lixia Guo. "Research on the characteristics and protection of water hammer in long-distance dual-pipe water supply systems." PLOS ONE 19, no. 12 (2024): e0314998. https://doi.org/10.1371/journal.pone.0314998.

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Hydraulic transients in long-distance pressurized water pipelines significantly impact their normal operation. This study develops a one-dimensional mathematical model for pressurized water pipelines using the method of characteristics and incorporates water hammer equations for dual-pipeline systems. The model is validated with experimental data, and simulations are conducted under real engineering conditions, focusing on valve closure operations. The analysis examines the transient responses for varying valve closure times (T) and the effect of installing surge tanks. Results show that incre
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Cui, Ying, Jun Fang, Zhan Qu, Meimei Song, and Junhai Zhao. "Research on Damage Assessment of Buried Standard and Carbon-Fibre-Reinforced Polymer Petroleum Pipeline Subjected to Shallow Buried Blast Loading in Soil." Shock and Vibration 2021 (August 17, 2021): 1–19. http://dx.doi.org/10.1155/2021/1459260.

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Buried petroleum pipelines may encounter threats from blast loading due to terrorist attacks, accidental explosions, and artificial blasting during in-progress construction. Carbon-fibre-reinforced polymer (CFRP) is often used for the repair and reinforcement of buried petroleum pipelines. It is meaningful and necessary to distinguish the different responses and establish an effective damage assessment method for standard petroleum pipelines and CFRP-supported petroleum pipelines buried in soil under blast loading. In this study, under fixed end constraints, experimental analysis and numerical
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Yang, Xueming, Hui Yan, Deting Luo, Qing Liu, and Qiang Wang. "Multivariate polynomial regression based selection and analysis of process parameters for X-ray inspection of pipeline containing medium." Journal of Physics: Conference Series 2528, no. 1 (2023): 012044. http://dx.doi.org/10.1088/1742-6596/2528/1/012044.

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Abstract Pressure pipelines use pressure to transport gas, liquefied gas, and steam in the process of use. If there are defects in the pipeline, it is easy to leak or burst, and even cause secondary accidents. To ensure safety, it is necessary to inspect the pressure pipelines in use regularly. However, it is difficult for the pressure pipeline in use to empty the internal medium. Therefore, it is of great significance to inspect the defects of the industrial pressure pipeline under operating conditions. In this paper, X-ray testing experiments are carried out for weld defects of pipelines wit
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Feng, Chunjian, Hang Wu, and Xin Li. "Buckling Analysis of Corroded Pipelines under Combined Axial Force and External Pressure." Metals 12, no. 2 (2022): 308. http://dx.doi.org/10.3390/met12020308.

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Affected by a complex environment, corrosion is a common defect in steel pipelines. Moreover, steel pipelines are subjected to large axial forces during their installation and operation. Corroded deep-sea steel pipelines are prone to local buckling under complex loads. Therefore, in view of this problem, the collapse response of corroded steel pipelines under the combined axial force and external pressure is analyzed in detail. First, a formula for evaluating the collapse pressure of corroded steel pipelines under external pressure and axial force is proposed. Then, the factors affecting the c
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Sydor, Taras, and Vadym Orel. "Variation of Hydraulic Resistance in Pressure Pipelines of an Open-Type Hydraulic System." Energy engineering and control systems 10, no. 1 (2024): 13–18. http://dx.doi.org/10.23939/jeecs2024.01.013.

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Pressure distributive pipelines with path distribution of fluid are part of various technical systems. Pressure losses at abrupt and smooth pipe reductions are components of total pressure losses in these pipelines. After all, the equalization of fluid distribution along the length of distributive pipelines is achieved, in particular, by reducing their diameter in the direction of flow. Depending on the configuration of the pipe reductions, pressure losses at this pipeline element can vary. For an open-type hydraulic system, a regulatory characteristics of pressure in the pipeline has been obt
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Zhao, Hongyang, Xu Liang, Zhiguo Yang, Pei He, and Bowen Zhao. "Experimental and Numerical Analysis of the Impact of Corrosion on the Failure Pressure of API 5L X65 Pipeline." Journal of Marine Science and Engineering 12, no. 10 (2024): 1810. http://dx.doi.org/10.3390/jmse12101810.

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This paper employs the Finite Element Method (FEM) to simulate and analyze the effects of corrosion defect parameters on the stress and failure pressure of pipelines. It investigates how the boundary conditions of the pipeline model influence stress and examines the sensitivity of failure pressure to corrosion defect parameters. A nonlinear regression equation has been developed from a dataset obtained through simulation experiments to predict the failure pressure of corroded pipelines. To validate the effects of corrosion defect parameters on failure pressure, a hydrostatic test platform for
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Dissertations / Theses on the topic "Pressure pipelines"

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Nsanzubuhoro, Rene. "Pressure-based leakage characterisation of bulk pipelines." Doctoral thesis, Faculty of Engineering and the Built Environment, 2019. http://hdl.handle.net/11427/30938.

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Water losses in distribution systems are a huge problem internationally and also in South Africa where more than a third of the water entering the water supply networks is lost through pipe leaks. With water demand increasing due to population growth and urbanisation, water resources are under greater stress and water supply failures are becoming more common. A great deal of work has been done over the past two decades on managing water losses in distribution systems. The Water Loss Task Force of the International Water Association (IWA) played a leading role in this effort, with the “IWA wate
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Bradley, Michael S. A. "Prediction of pressure losses in pneumatic conveying pipelines." Thesis, University of Greenwich, 1990. http://gala.gre.ac.uk/14606/.

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This project arose out of a need to improve the accuracy with which the pressure drop along pneumatic conveying pipelines in process plant could be predicted. The methods previously available for making this prediction are examined and critically assessed. The need for a different method is shown, and a new approach is developed and tested. The new approach involves testing of the product to be conveyed, in a test pipeline at the smaller end of the industrial scale, with measurements being made of the pressure drop caused by bends and of the pressure gradients in straight lengths; the data is
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Fallqvist, Björn. "Collapse of thick deepwater pipelines due to hydrostatic pressure." Thesis, KTH, Hållfasthetslära (Inst.), 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-174084.

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The collapse-behaviour of pipes was to be studied by use of Finite Element modelling.Existing analytical expressions for collapse were evaluated and especially the one used inDNV-OS-F101 was decided to be studied in comparison with FE-model results.Parameters that may influence the collapse capacity and are not included in the analyticalexpressions –flattening, peaking, eccentricity, local wall thickness variation, materialstress-strain curve, residual stresses - were defined and explained. A model was built inthe Finite Element software package Abaqus v6.9.1 and several articles on collapsete
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Vancko, Robert M. "Effect of a drag reducing agent on pressure drop and flow regime transitions in multiphase horizontal low pressure pipelines." Ohio : Ohio University, 1997. http://www.ohiolink.edu/etd/view.cgi?ohiou1184354301.

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Alzuhd, Tahir Hussein Hasan. "Pressure losses associated with slurry flow in horizontal pipelines." Thesis, University of Hertfordshire, 2003. http://hdl.handle.net/2299/14146.

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The flow of solid liquid mixtures (slurries) has attracted much attention in research work because of its importance to industry. Prediction of pressure losses associated with slurry flow helps pipe designers select the correct pipe sizes for optimum energy consumption, equipment sizing and reliable operation of the pipeline networks. Many workers developed empirical correlations, but due to the randomness of the problem they seem of limited use in design applications because they do not contain an assessment except by trial and error, which is costly. The existence of more than one particle s
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Abbassian, F. "Long-running ductile fracture of high pressure gas pipelines." Thesis, University of Cambridge, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.372872.

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Sundara, V. "Transient flow dynamics in high pressure carbon dioxide pipelines." Thesis, University College London (University of London), 2015. http://discovery.ucl.ac.uk/1465047/.

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The purpose of this thesis is to model, investigate and where possible validate the impact of Emergency Shutdown Valve (ESDV) closure on mitigating the fugitive releases from failed CO2 pipelines employed as part of the Carbon Capture and Storage (CCS) chain. Additional mathematical modelling work is also presented for simulating steady-state fluid flow and mixing in CO2 pipeline networks containing the various types of impurities representative of the different capture technologies, including pre-combustion, post-combustion and oxyfuel. The pipeline rupture transient flow model, based on the
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Manouchehri, Soheil. "Behaviour of subsea pipelines subjected to bending and hydrostatic pressure." Thesis, Heriot-Watt University, 2004. http://hdl.handle.net/10399/244.

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Sandford, Richard J. "Lateral buckling of high pressure/high temperature on-bottom pipelines." Thesis, University of Oxford, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.645946.

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On-bottom (or unburied) pipelines) which carry hydrocarbons across the seabed) are typically subjected to compressive axial loading arising from restrained thermal- and pressure-induced expansion. This compressive loading usually causes a nominally straight pipeline to buckle into a mode lying predominantly in the plane of the seabed; this response is widely termed lateral buckling. Predicting the response of an on-bottom pipeline to thermal and pressure-induced axial compressive loading is the primary focus of this thesis. In assessing whether or not the structural integrity of a pipeline is
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Venables, Robert. "Thermal behaviour of transient high pressure hydrocarbon systems." Thesis, Imperial College London, 1997. http://hdl.handle.net/10044/1/8020.

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Books on the topic "Pressure pipelines"

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Institution of Mechanical Engineers (Great Britain). Pressure Systems Group., ed. Ageing pipelines: Optimizing the management and operation : low pressure--high pressure : 11-13 October 1999 Newcastle Civic Centre, UK. Published by Professional Engineering Publishing Limited for the Institution of Mechanical Engineers, 1999.

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Commission, United States International Trade. In the matter of certain pressure transmitters: Investigation no. 337-TA-304 : temporary relief (Commission decision of March 19, 1990). U.S. International Trade Commission, 1991.

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United States International Trade Commission. In the matter of certain pressure transmitters: Investigation no. 337-TA-304 : temporary relief (Commission decision of March 19, 1990). U.S. International Trade Commission, 1991.

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H, Atkinson J., ed. Guide to the design of thrust blocks for buried pressure pipelines. Construction Industry Research and Information Association, 1994.

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Magda, Waldemar. Akumulacja ciśnienia porowego wokół rurociągu podmorskiego zagłębionego w dnie. Wydawn. Politechniki Gdańskiej, 2006.

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D, Roll Eric, Picqueur L. M, American Society of Mechanical Engineers. Pressure Vessels and Piping Division., and ASME Pressure Vessels and Piping Conference (1999 : Boston, Massachusetts), eds. High pressure technology-1999: Presented at the 1999 ASME Pressure Vessels and Piping Conference : Boston, Massachusetts, August 1-5, 1999. American Society of Mechanical Engineers, 1999.

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Institution of Mechanical Engineers (Great Britain). Pressure Systems Group. and Engineering Inspection Authorities Board, eds. Management of in-service inspection of pressure systems: International conference, 9-10 March 1993, Institution of Mechanical Engineers, Birdcage Walk, London. Published for IMechE by Mechanical Engineering Publications, 1993.

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F, Sammataro R., American Society of Mechanical Engineers. Pressure Vessels and Piping Division., and Pressure Vessels and Piping Conference (1991 : San Diego, Calif.), eds. Codes and standards and applications for design and analysis of pressure vessel and piping components, 1991: Presented at the 1991 Pressure Vessels and Piping Conference, San Diego, California, June 23-27, 1991. American Society of Mechanical Engineers, 1991.

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American Society of Mechanical Engineers. Hydrogen piping and pipelines: ASME Code for Pressure Piping, B31. American Society of Mechanical Engineers, 2009.

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ASME B31 Committee. Gas transmission and distribution piping systems: ASME code for pressure piping, B31. American Society of Mechanical Engineers, 1999.

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Book chapters on the topic "Pressure pipelines"

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Bayly, David, and W. D. Loth. "Pressure Specification Break Pipelines." In Advances in Underwater Technology, Ocean Science and Offshore Engineering. Springer Netherlands, 1994. http://dx.doi.org/10.1007/978-94-011-1178-2_1.

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Chadwick, Andrew, John Morfett, and Martin Borthwick. "Pressure surge in pipelines." In Hydraulics in Civil and Environmental Engineering, 6th ed. CRC Press, 2021. http://dx.doi.org/10.1201/9781003026839-7.

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Zhao, Yu, Yongfa Zhang, and Pengfei He. "Constant Pressure Injection." In Hydraulic Fracturing and Rock Mechanics. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-2540-7_5.

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AbstractIn practical hydraulic fracturing, limited by the operating power of the syringe pump and long transportation of pipelines, it is often difficult to maintain high pumping fluid pressure to crack the reservoir rock in deep formation.
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Xu, Tong, Wei Sun, Wenyu Tan, and Shuai Feng. "Numerical Simulation of Ultimate Bearing Capacity of Corroded Pipeline under Coupling Load." In Lecture Notes in Civil Engineering. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-5814-2_19.

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AbstractBased on the ductile damage theory of metal materials, this paper systematically studies the ultimate bearing capacity of corroded pipeline subjected to axial force, bending moment and pressure by using fluid cavity simulation technology. For pipelines with different corrosion characteristics, the interaction diagram of the bearing capacity of corroded pipeline is established by considering the coupling effect of medium properties, pressure, external axial force and bending moment. The numerical simulation results show that the depth of corrosion strongly affects the bearing capacity o
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Lindner, Hubert. "Deepwater, High-Pressure and Multidiameter Pipelines-A Challenging in-Line Inspection Project." In Oil and Gas Pipelines. John Wiley & Sons, Inc., 2015. http://dx.doi.org/10.1002/9781119019213.ch52.

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Ali, Jafar A. "Pressure Minor Losses Coefficient in Cracked Pipelines." In Proceedings of the 2022 International Petroleum and Petrochemical Technology Conference. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-2649-7_15.

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Dmytriienko, R. I., S. M. Prokopchuk, and O. L. Paliienko. "Inner Pressure Testing of Full-Scale Pipe Samples." In Non-destructive Testing and Repair of Pipelines. Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-56579-8_26.

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Han, Mingda, Hetong Liu, Yujian Tang, Yibo Zhang, and Weixu Zhang. "An Efficient Strategy for Creep-Fatigue Assessment of Pipelines with Complex Local Structures and High Computational Demands." In Lecture Notes in Mechanical Engineering. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-1876-4_53.

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AbstractThermal pipelines are extensively utilized in power plants, and they operate in high-temperature and high-pressure environments. Consequently, creep and fatigue are two crucial factors that need to be considered in the design and operation of main pipelines. Assessing the safety of main pipelines considering creep-fatigue is of paramount importance. However, the current assessment of main pipelines faces challenges such as large computational requirements and susceptibility to complex local structures, making efficient evaluation a longstanding problem. Furthermore, there is a lack of
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Sumbatyan, M. A., Evgeny N. Barkanov, and A. E. Tarasov. "Dynamic Properties of Thin-Walled Structures Under Changing Pressure Conditions in the Contact Fluid." In Non-destructive Testing and Repair of Pipelines. Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-56579-8_8.

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Liu, Jinhai, and Zhibo Yu. "A Filtering Method for Pressure Time Series of Oil Pipelines." In Advances in Brain Inspired Cognitive Systems. Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-31561-9_21.

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Conference papers on the topic "Pressure pipelines"

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Thompson, Ian, and Peter Martin. "AC Corrosion Monitoring on High Pressure Pipelines." In CORROSION 2015. NACE International, 2015. https://doi.org/10.5006/c2015-05470.

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Abstract Pipeline networks are increasingly paralleling overhead AC power lines, as more pipelines are laid in energy corridors or are built to carry gas into gas powered generating stations. As a consequence, there is an increasing requirement to quantify the damage AC corrosion may be causing to these pipelines. Although pipeline operators routinely monitor AC current densities at test posts along pipelines interfered with by AC, it has not been possible to correlate these current densities with metal loss and hence the AC corrosion rate. Although repeat in-line inspection (ILI) will give an
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Taylor, Sidney A., and Gerald Chapman. "Cleaning Pipelines Using High Pressure Water Jets." In CORROSION 1991. NACE International, 1991. https://doi.org/10.5006/c1991-91542.

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Abstract This presentation discusses the use of high pressure water jetting techniques to remove pipeline coating systems during rehabilitation of pipelines. A review is made of the conventional pipeline cleaning techniques. The mechanics of how high pressure water jets remove coatings is examined as well as the influence of the water jet on the pipe surface. Recent studies concerning the removal of soluble salts by high pressure water jets are discussed. Current water jet cleaning equipment and methods are described and a summary of field experience to date is presented.
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Romer, Andrew E., and Richard I. Mueller. "Making Connections to Concrete Pressure Pipe." In Pipelines 2021. American Society of Civil Engineers, 2021. http://dx.doi.org/10.1061/9780784483619.040.

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Lehrburger, Mike, and Kyle LeBrasse. "Large Diameter, High Pressure Blowoff Design." In Pipelines 2022. American Society of Civil Engineers, 2022. http://dx.doi.org/10.1061/9780784484272.028.

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Moustafa, Kamal A. F., Gamal M. Nawara, Hesham Elawady, and Mohsen Fouad. "On Leak Detection of Pipelines Using Computational Pipeline Monitoring." In ASME 2008 Pressure Vessels and Piping Conference. ASMEDC, 2008. http://dx.doi.org/10.1115/pvp2008-61691.

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The unintentional release of fluid from pipelines is considered as a leak. Leaks contribute to the environmental pollution, promote corrosion and equipment failures and produce instabilities in the pipeline operation and control. There is a need, therefore, to develop an effective leak diagnosis scheme in pipeline systems that can detect the occurrence of any leak in the system. One objective of this paper is to develop a mathematical model that accounts for the behavior of pressure and flow-rate profiles in pipeline systems with multi leaks. Such a mathematical model is needed to better under
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Shi, Jianfeng, Ruoxi Xia, Jinyang Zheng, Zhongzhen Wang, Xinyu Zheng, and Riwu Yao. "Investigation on Carbon Emission Reduction of Non-Metallic Composite Pipeline for Hydrogen Transportation." In ASME 2024 Pressure Vessels & Piping Conference. American Society of Mechanical Engineers, 2024. http://dx.doi.org/10.1115/pvp2024-123179.

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Abstract Non-metallic composite pipelines possess remarkable flexibility and exceptional resistance to corrosion. Compared to traditional metallic hydrogen pipelines, non-metallic composite hydrogen pipelines effectively mitigate the challenges of hydrogen corrosion and brittleness, positioning them as a promising alternative for large-scale, low-cost hydrogen transportation. Moreover, compared to traditional metal pipelines, non-metallic composite hydrogen pipelines exhibit lower wall roughness, effectively reducing hydraulic losses and offering carbon reduction advantages. Within the lifecyc
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Knight, Mark A., and George Bontus. "Pressure Testing of CIPP Liners to Failure." In Pipelines 2018. American Society of Civil Engineers, 2018. http://dx.doi.org/10.1061/9780784481653.048.

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Malekpour, A., and D. McPherson. "Waterhammer Pressure Intensity in House Service Pipelines." In Pipelines 2016. American Society of Civil Engineers, 2016. http://dx.doi.org/10.1061/9780784479957.106.

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Mueller, Richard I., and Yan Lan. "Designing Concrete Pressure Pipe to Resist Corrosion." In Pipelines 2021. American Society of Civil Engineers, 2021. http://dx.doi.org/10.1061/9780784483619.032.

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Hall, Sylvia C. "Does My Pressure Pipeline Need Cathodic Protection?" In Pipelines 2020. American Society of Civil Engineers, 2020. http://dx.doi.org/10.1061/9780784483190.008.

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Reports on the topic "Pressure pipelines"

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Wolodko. L52036 High Pressure Design for New Pipelines. Pipeline Research Council International, Inc. (PRCI), 2005. http://dx.doi.org/10.55274/r0011118.

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The objective of this project was to review the state-of-the-art with respect to high pressure pipelines and to evaluate the technical feasibility of high pressure designs for new construction of onshore pipelines. The study includes a review of issues pertaining to the implementation of high pressure pipeline designs, as well as detailed analysis in two identified areas of importance: 1) the sizing of potential impact zones for high pressure, rich gas service, and 2) the assessment of various ductile fracture arrest models.
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Kiefner and Rosenfeld. I7JUMPH Effects of Pressure Cycles on Gas Pipelines. Pipeline Research Council International, Inc. (PRCI), 2008. http://dx.doi.org/10.55274/r0011287.

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The objective of this study was to determine whether or not gas pipelines have a significant degree of exposure to failure from seam defects that could become enlarged by pressure-cycle-induced fatigue. If there is a potential problem in this respect, then knowing the conditions and times over which defect growth becomes significant, a pipeline operator can prevent failures by carrying out timely pipeline integrity assessments. In this study, times to failure were computed for worst-case hypothetical seam defects that would have barely survived a hydrostatic test to 100 percent of SMYS and sub
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Bruce. L52273 Internal Repair of Pipelines. Pipeline Research Council International, Inc. (PRCI), 2005. http://dx.doi.org/10.55274/r0010287.

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External, corrosion-caused loss of wall thickness is the most common cause of repair for gas transmission pipelines. To prevent an area of corrosion damage from causing a pipeline to rupture, the area containing the corrosion damage must be reinforced. Since corrosion is a time dependent process, as pipelines become older, more repairs are required. Repair methods that can be applied from the inside of a gas transmission pipeline (i.e., trenchless methods) are an attractive alternative to conventional repair methods since pipeline excavation is precluded. This is particularly true for pipeline
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Alexander. PR-201-144503-R01 Guidelines for Using Composite Systems to Repair High Pressure Pipelines. Pipeline Research Council International, Inc. (PRCI), 2016. http://dx.doi.org/10.55274/r0010860.

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This document, Guidelines for Using Composite Systems to Repair High Pressure Gas and Liquid Transmission Pipelines, was prepared for the Pipeline Research Council International, Inc. to provide direction for operators of high pressure transmission pipelines in using composite repair technologies. This guideline document provides technically sound and supported guidance to pipeline operators for the selection, design, and installation of composite repairs that allow the continued safe operation of the repaired pipelines. The guideline also provides essential elements for gaining regulatory acc
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Leis, Brian, D. Rudland, and Robert Eiber. PR-003-9523-R01 Evaluation of the Benefits of Hydrotesting Gas-Transmissions Pipelines. Pipeline Research Council International, Inc. (PRCI), 1997. http://dx.doi.org/10.55274/r0011670.

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This report presents an assessment of the effectiveness of a hydrotest in exposing defects in new and existing onshore and offshore pipelines. The study includes an assessment of the type and size of flaws that testing can and cannot identify through pressure testing for new lines and retesting for existing lines. The study included an assessment of gas (air, nitrogen, methane, etc.) versus water pressure testing to assess leak tightness involved comparing the detectability of flaws based on gas pressure testing at either the maximum allowable operating pressure (MAOP) or up to 80 percent of s
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Unknown, Author. WINMOP-R03 Performance of Offshore Pipelines. Pipeline Research Council International, Inc. (PRCI), 2003. http://dx.doi.org/10.55274/r0011744.

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The objective of the project was to validate existing pipeline integrity prediction models through field testing multiple pipelines, validate the performance of in-line instrumentation through smart pig runs, and finally, to assess the actual integrity of aging damaged and defective pipelines. The objectives were accomplished by the testing of aging out-of-service lines using "smart pigs", followed by hydrotesting of the lines to failure, recovery of the failed sections, and determination of the pipeline characteristics in the vicinity of the failed sections (failure analysis). One objective o
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Wright, Anthony L. TTD-WN-1 Hydrostatic Tests and Pressure Reversal. Pipeline Research Council International, Inc. (PRCI), 1997. http://dx.doi.org/10.55274/r0011883.

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Tests are being conducted to examine and identify the cause and effect of pressure reversal that sometimes occur during hydrostatic pressure testing of pipelines. The concern being that hydrostatic testing may in some instances reduce rather than establish the integrity of a pipeline.
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Swankie. PR-273-063514-R01 Assessment of Corrosion Damage in Pipelines Subjected to Cyclic Pressure Loading. Pipeline Research Council International, Inc. (PRCI), 2009. http://dx.doi.org/10.55274/r0010966.

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A range of methods exist for assessing the remaining strength of a corroded pipeline under static pressure loading and these have now matured to the extent that they are incorporated in regulations and standards. However, there is currently no guidance for assessing the performance of a corroded pipeline under cyclic pressure loading. This is of potential concern to operators where there are significant pressure variations, for example where there is a demand for linepack storage and in liquid pipelines. It is possible that a corrosion defect could be assessed as acceptable for the maximum ope
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Williams. L51671 Criteria for Dent Acceptability of Offshore Pipelines. Pipeline Research Council International, Inc. (PRCI), 1992. http://dx.doi.org/10.55274/r0010217.

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Extensive research has provided an understanding in the behavior of pipelines subjected to mechanical damage. The presence of a gouge or the combination of a gouge and a dent has been proven detrimental to the burst strength of pipelines. The research has also revealed that plain smooth dents, in the absence of a defect, do not significantly reduce the burst strength of pipelines. On the other hand, plain dents locally increase the pipe stress due to pressure. Thus, fatigue failures from dents can occur from normal operating pressure fluctuations in the lines over a period of time This report
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Leis and Mohan. L51803 Failure Criterion for Stress-Corrosion Cracking in Pipelines. Pipeline Research Council International, Inc. (PRCI), 1995. http://dx.doi.org/10.55274/r0010327.

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Failures due to stress-corrosion cracking (SCC) generally involve several adjacent, parallel, deep cracks that because of their proximity coalesce to form long flaws, which can cause ruptures.Recent studies indicate that such multiple flaws cause a local increase in compliance as compared to a single crack that represents the largest of the cracks involved.This means that the failure pressure for such a group of cracks can be poorly represented by a single flaw failure criterion, such as the Pipe Axial Flaw Failure Criterion (PAFFC) developed for the Pipeline Research Council International, In
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