Structural assessment of a 500-cbm liquefied natural gas bunker ship during bunkering and marine operation under collision accidents

Sohn, Jung Min; Jung, Dong-Ho

doi:10.1080/17445302.2021.1996133

Cited by 4 publications

(4 citation statements)

References 15 publications

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“…The collision energy can distort the flange joint between pipe-pipe and pipe-valve connections and initiate LNG release. Previously obtained collision analysis data were used to define the damage region for CFD modeling [38]. The LNG bunkering ship was struck by the bow of the striking ship.…”

Section: Intact and Damaged Geometries Of The Shipmentioning

confidence: 99%

“…The LNG bunkering ship was struck by the bow of the striking ship. In this case, the wrecked part was located on the port side, or the side that was facing the sea from the LNG bunkering ship, during the bunkering process [38]. Factors such as displacement, speed, and strike angle of the striking ship can result in different depth penetration of the struck ship [38].…”

Section: Intact and Damaged Geometries Of The Shipmentioning

confidence: 99%

“…In this case, the wrecked part was located on the port side, or the side that was facing the sea from the LNG bunkering ship, during the bunkering process [38]. Factors such as displacement, speed, and strike angle of the striking ship can result in different depth penetration of the struck ship [38]. The damage region was selected by considering the mid-level penetration frequencies and severity to determine the likelihood and significance of consequences.…”

Section: Intact and Damaged Geometries Of The Shipmentioning

confidence: 99%

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Consequence Analysis of Accidental LNG Release on the Collided Structure of 500 cbm LNG Bunkering Ship

Nubli

Sohn

Jung³

2022

JMSE

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The growing demand for liquefied natural gas (LNG)-fueled ships necessitates the establishment of an LNG bunkering facility. Ship-to-ship (STS) is one of the most practical forms of LNG bunkering systems. Although there are benefits to the LNG bunkering of ships, risk and safety issues are a concern due to the volatile cargo. Ship collision could result in accidental LNG release. The purpose of this study was to build LNG leakage scenarios, establish critical zones based on gas concentrations, and estimate the temperature reduction in a bunkering ship’s structure resulting from the use of cryogenic fluid. The condition of a target ship’s structure, both intact and when damaged due to collision, was considered. Leak size, leak direction, leak position, release rate, and reservoir pressure were included as leak parameters, and environmental parameters, such as the wind direction, wind speed, and ambient temperature, were also included. The release duration was set based on the shutdown duration of the emergency shutdown valve (ESD). A total of 72 leakage scenarios were generated for the main CFD analysis. Convergence tests were conducted to determine the appropriate grid and iteration numbers for a computational fluid dynamics (CFD) simulation. The gas dispersion characteristics and the cryogenic flow impact on the LNG bunkering ship’s structure are discussed through a parametric study.

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Section: Intact and Damaged Geometries Of The Shipmentioning

confidence: 99%

Section: Intact and Damaged Geometries Of The Shipmentioning

confidence: 99%

Section: Intact and Damaged Geometries Of The Shipmentioning

confidence: 99%

See 1 more Smart Citation

Consequence Analysis of Accidental LNG Release on the Collided Structure of 500 cbm LNG Bunkering Ship

Nubli

Sohn

Jung³

2022

JMSE

Self Cite

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“…In this study, the structural crashworthiness of the LNG-fuelled containership structures under specified ship-to-ship collision scenarios is analyzed using LS-DYNA nonlinear finite element method code (LS-DYNA, 2019a, 2019b). A large number of useful studies for the structural crashworthiness analysis in collisions using nonlinear finite element methods are available in the literature (Zheng et al, 2007;Ringsberg, 2010;Pill and Tabri, 2011;Haris and Amdahl, 2012;Samuelides, 2015;Storheim and Amdahl, 2017;Zhang and Pedersen, 2017;Yussef et al, 2017;Liu et al, 2019;Rudan et al, 2019;Yu and Liu, 2019;Sohn and Jung, 2021).…”

Section: Finite Element Modelling For the Structural Crashworthiness ...mentioning

confidence: 99%

Collision-accidental limit states-based safety studies for a LNG-fuelled containership

2022

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A review on the hull structural steels for ships carrying liquefied gas: Materials performance subjected to low temperatures

Nubli

Suryanto

Fajri

et al. 2023

Procedia Structural Integrity

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Structural assessment of a 500-cbm liquefied natural gas bunker ship during bunkering and marine operation under collision accidents

Cited by 4 publications

References 15 publications

Consequence Analysis of Accidental LNG Release on the Collided Structure of 500 cbm LNG Bunkering Ship

Consequence Analysis of Accidental LNG Release on the Collided Structure of 500 cbm LNG Bunkering Ship

Collision-accidental limit states-based safety studies for a LNG-fuelled containership

A review on the hull structural steels for ships carrying liquefied gas: Materials performance subjected to low temperatures

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