A Study on Process Management Method of Offshore Plant Piping Material using Process Mining Technique

Park, Jung Goo; Kim, Mingyu; Woo, Jong-Hun

doi:10.3744/snak.2019.56.2.143

Cited by 4 publications

(3 citation statements)

References 5 publications

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“…Valves and pipes used in offshore plants require high strength and pitting corrosion resistance because they are used in seawater (high corrosion environment by chloride ion) [1][2][3]. Among various materials, super duplex stainless steel (SDSS) is suitable for application in offshore plants because of its high corrosion resistance and strength [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Effects of the Volume Fraction of the Secondary Phase after Solution Annealing on Electrochemical Properties of Super Duplex Stainless Steel UNS S32750

Kim

Chung

Shin

2023

Metals

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Super duplex stainless steel (SDSS) is used for manufacturing large valves and pipes in offshore plants because of its excellent strength and corrosion resistance. Large valves and pipes are manufactured by forging after casting, and the outside and inside microstructures are different owing to the difference in the cooling rate caused by the thermal conductivity. This microstructural variation causes cracks during solution annealing, which breaks the materials. To study the corrosion resistance of the SDSS forged material, the influence of the microstructure according to the difference between the inside and outside cooling rates of the cast SDSS was evaluated. To analyze the effects of the secondary phase fraction before solution annealing on the solution and corrosion resistance, the corrosion resistance with and without solution annealing was measured using the potentiodynamic polarization test and critical temperature test after the precipitation of the secondary phase. In the potentiodynamic polarization test, the secondary phase decreased the activation polarization and increased the corrosion rate. The critical pitting temperature exhibited the effect of the secondary phase.

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Section: Introductionmentioning

confidence: 99%

Effects of the Volume Fraction of the Secondary Phase after Solution Annealing on Electrochemical Properties of Super Duplex Stainless Steel UNS S32750

Kim

Chung

Shin

2023

Metals

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show abstract

“…Valves and pipes used in offshore plants require high strength and corrosion resistance because they are used in seawater [1][2][3]. Among various materials, super duplex stainless steel (SDSS) is suitable for application in offshore plants [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Effects of the Volume Fraction of the Secondary Phase After So-Lution Annealing on Electrochemical Properties of Super Duplex Stainless Steel UNS S32750

Shin¹,

Chung²,

Kim³

2023

Preprint

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Super duplex stainless steel (SDSS) is used for manufacturing large valves and pipes in offshore plants because of its excellent strength and corrosion resistance. Large valves and pipes are manufactured by forging after casting, and the outside and inside microstructures are different owing to the difference in the cooling rate caused by the thermal conductivity. This microstructural variation causes cracks during solution annealing, which breaks the materials. To study toe corrosion resistance of the SDSS forged material, the microstructure was conducted based on the difference in the cooling rate between the inside and outside of the cast SDSS. To analyze the effects of the secondary phase fraction before solution annealing on the solution and corrosion resistance, the corrosion resistance with and without solution annealing was measured using the potentiodynamic polarization test and critical temperature test after the precipitation of the secondary phase. In the potentiodynamic polarization test, the secondary phase decreased the activation polarization and increased the corrosion rate. The critical pitting temperature exhibited the effect of the secondary phase.

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“…Park et al (2019b) addressed a management method based on the connection relationships between installation pipe fitting items acquired from CAD information for prior management of the offshore plant installation readiness. Park et al (2019a) performed process visualization, bottleneck process analysis, and partner performance analysis-based process mining with log data generated in the pipe materials supply process.…”

mentioning

confidence: 99%

Study on System Support for Offshore Plant Piping Process Using 3D Simulator

Kim

Lee²

2020

J. Ocean Eng. Technol.

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Pipe installation work in offshore plant construction is a major construction process that accounts for more than 40% of the total construction by work type (Kim and Shin, 2014). Previous studies have continuously minimized the loss and cost of work by efficiently managing the production and installation processes of numerous pipes made of various materials according to the characteristics of work on offshore plants (Ham et al., 2016). To examine the contents of major studies, Ham et al. (2016) attempted to minimize the inefficiency of delayed pipe delivery by designing a regression analysis predictive model for pipe production and installation. This study demonstrated the possibility of more accurate pipe lead time prediction if high-quality data are acquired and appropriate variables are selected as a result of the nature of regression analysis. Wei and Nienhyuis (2012) applied an assembly sequence algorithm for fittings to the pipe installation plan and examined the possibility of interference and processing. They implemented a system that derives an automatic assembly sequence by reflecting constraints in the actual assembly; however, there were partial limitations in improving the entire piping process. DSME (2015) suggested an automatic method for cross-verification of 2D drawings and 3D models in 2D and 3D pipe systems using the ISO 15926 xml file format. Furthermore, SHI (2015) proposed a piping work management system composed of a unit for pipe information extraction from pipe design information, a work difficulty setting unit, an individual work ratio setting unit, a performance management unit, and a performance database. It manages only the engineering information, excluding the 3D computer-aided design (CAD) model. Park and Woo (2018) proposed a data structure for an integrated piping process management system by defining items that need to be improved for each process of offshore plant piping materials. Oh et al. (2018) presented a method for predicting the required amount of pipe materials for offshore structures based on big data analysis for more accurate material

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A Study on Process Management Method of Offshore Plant Piping Material using Process Mining Technique

Cited by 4 publications

References 5 publications

Effects of the Volume Fraction of the Secondary Phase after Solution Annealing on Electrochemical Properties of Super Duplex Stainless Steel UNS S32750

Effects of the Volume Fraction of the Secondary Phase after Solution Annealing on Electrochemical Properties of Super Duplex Stainless Steel UNS S32750

Effects of the Volume Fraction of the Secondary Phase After So-Lution Annealing on Electrochemical Properties of Super Duplex Stainless Steel UNS S32750

Study on System Support for Offshore Plant Piping Process Using 3D Simulator

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