Experimental and numerical analysis of a membrane cargo containment system for liquefied natural gas

Ehlers, Sören; Guiard, Matthias; Kubiczek, Jan M.; Höderath, Annika; Sander, Florian; Sopper, Regina; Charbonnier, Pierre; Marhem, M.; Darie, Ionel; Selle, Hubertus von; Peschmann, Jörg; Bendfeldt, Peter

doi:10.1080/17445302.2016.1248753

Cited by 9 publications

(3 citation statements)

References 2 publications

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“…A comprehensive study that included both numerical and experimental tests on the mechanical integrity of a membrane cargo containment system made from 304L steel under collision scenarios, conducted by Elhers [6], showed good agreement between the experimental and numerical results in the initial bulb indentation of the LNG tank space, indicating an accurate representation of the initial stiffness in the numerical model. Additionally, the assessment of cryogenic steel under sloshing loads using a non-linear FE method conducted by Sohn et al [7] showed that the numerical approach matched the experimental behavior of the fracture under axial tensile load, further validating the reliability of numerical methods in predicting the behavior of cryogenic steels.…”

Section: Introductionmentioning

confidence: 93%

Comparative FEM Analysis of Vacuum and Perlite Insulation Techniques on the Structural Integrity of Independent Type C Liquefied Natural Gas Tank

Sviličić,

Rudan,

Galić

et al. 2024

JMSE

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In light of escalating global energy demands and the imperative to reduce greenhouse gas emissions, the efficient transportation of liquefied natural gas (LNG) has become increasingly critical. As the evaporation of LNG from storage tanks represents a significant energy loss, improving tank insulation is crucial to optimize storage efficiency. This paper conducts a structural assessment of a smaller-sized Type C independent tank made of AISI 304L steel and examines the impact of two insulation techniques—vacuum and perlite—on their heat, structural, and fatigue behavior. Utilizing the finite element method (FEM), this study performs a heat transfer analysis followed by a structural analysis under combined loads in accordance with the International Gas Carrier (IGC) code. The subsequent fatigue analysis follows IGC procedures and is performed using third-party software. This article presents a detailed analysis of the heat transfer throughout the entire LNG tank and the stress levels under various combined load scenarios while providing insights into the critical stress points and the areas with the lowest fatigue life. Finally, this study confirms the viability of using both novel materials, perlite as an insulation material and Durolight for the tank support, because they meet the required limits.

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Section: Introductionmentioning

confidence: 93%

Comparative FEM Analysis of Vacuum and Perlite Insulation Techniques on the Structural Integrity of Independent Type C Liquefied Natural Gas Tank

Sviličić,

Rudan,

Galić

et al. 2024

JMSE

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“…In industry practices for numerical simulations involving ship collisions, the frictional coefficient in the range of 0.1-0.3 is often adopted to simplify the problems associated with friction [1]. In this study, we assume a constant frictional coefficient of 0.3, which is commonly used in ship collisions, e.g., see [56,59,62,63], and the static and dynamic frictions are the same [64].…”

Section: Contact Modellingmentioning

confidence: 99%

Quantitative collision risk assessment of a fixed-type offshore platform with an offshore supply vessel

Mujeeb-Ahmed

Paik

2021

Structures

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Offshore installations are designed to withstand against potential collisions from offshore supply vessels (OSV). Quantitative risk assessment (QRA) provides an overall picture of expected collision frequencies and consequences for the design life of a platform and subsequently estimates the damage repair cost. However, the main challenge of the QRA study is how well various uncertainties are implemented into the model. This study aimed to introduce and demonstrate an advanced and efficient QRA model for the collision between an OSV and a jacket type offshore platform. A set of fifty collision scenarios were selected using probabilistic sampling techniques, and vessel motion analyses were performed to determine collision load characteristics. Extensive nonlinear structural crashworthiness analyses were conducted using advanced computational modelling techniques, and the repair cost of the damaged brace and column members were calculated. Probability exceedance diagrams were established for different consequence parameters, and asset risks were calculated. A comparison study of the design values of damage parameters and repair costs were carried out in association with the NORSOK and HSE risk acceptance criteria. A sensitivity study was carried out to study the effects of various collision load parameters on the structural consequences. The methods and insights developed in this study could be applied to both new and existing offshore platforms and practically useful for the platform owners to aid in their decision-making process towards the risk-based safety analysis of offshore platforms.

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“…In this paper we choose the often used Mark III CCS designed by Gaztransport & Technigaz. [8,10,15] explain the working principles behind the CCS, as shown in Fig. 2.…”

Section: Reduced Order Cargo Containment System Modelmentioning

confidence: 99%

A reduced order model for structural response of the Mark III LNG cargo containment system

Bos

Besten

Kaminski

2020

ISP

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Highly varying sloshing loads are a superposition of load components resulting from a sequence of different physical phenomena. However, not all features of spatial and temporal variations of sloshing loads and associated phenomena are equally important when failure of structure is considered. Therefore, the prediction of sloshing loads should be focused on those load components which lead to failure. These components can be found by employing a structural model, which should be fast computationally considering the huge number of possible sloshing loads. This paper presents a reduced order model based on the beam-foundation model which is derived for the Mark-III cargo containment system. The model is validated against a detailed finite element model and it conservatively predicts the stresses at failure locations. The calculation time using the model is approximately two orders smaller in comparison to a finite element model computation, which allows the model to be applied for finding governing load components and associated physical phenomena.

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Experimental and numerical analysis of a membrane cargo containment system for liquefied natural gas

Cited by 9 publications

References 2 publications

Comparative FEM Analysis of Vacuum and Perlite Insulation Techniques on the Structural Integrity of Independent Type C Liquefied Natural Gas Tank

Comparative FEM Analysis of Vacuum and Perlite Insulation Techniques on the Structural Integrity of Independent Type C Liquefied Natural Gas Tank

Quantitative collision risk assessment of a fixed-type offshore platform with an offshore supply vessel

A reduced order model for structural response of the Mark III LNG cargo containment system

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