... in all cases studied, provided the Morison equation is used with relevant time series of liquid velocities and accelerations. Introduction Liquefied natural gas (LNG) membrane tanks are largely used on different kinds of floating structures such as LNG carriers, floating liquefied natural gas vessels...

... and positions can be compared by simultaneously installing the two tanks on the motion platform. Introduction The sloshing phenomenon is a flow caused by the movement of the tank containing the fluid, which impacts the tank wall. Particularly, for a liquefied natural gas (LNG) carrier, studies on the sloshing...

... multiple of the system’s natural frequency induces secondary violent sloshing even when both excitations are further away from the natural frequency. Introduction With the global shortage of resources, the demand for liquefied natural gas (LNG) keeps growing, and by 2035, the gas is projected to supply...

... compressibility. INTRODUCTION Context The context of this study is the sloshing assessment of LNG membrane tanks on floating structures based on sloshing model tests. Those tests are usually performed with model tanks at scale 1:‹ 40), filled with water and a mixture of gases cho- sen in order to have the same...

... natural gas (LNG) tanks on floating structures based on sloshing model tests. The model tank, most of the time at scale 1:40, is put on the platform of a six-degree-of-freedom motion generator. The liquid inside the model tank is water; the ullage gas is a mixture of sulfur hexafluoride (SF 6...

...Jieung Kim; Yonghwan Kim; Sang-Yeob Kim; Kwang-Min Lee; Young-Jae Sung The present paper reports an experimental study on the effect of sloshing impact pressure on a small-scale liquefied natural gas (LNG) fuel tank of a container ship. LNG has recently gained attention as a ship fuel because...

... LNG Tank Based on an Improved SPH Model Chong Ma*, Takahiro Ando and Masayoshi Oka Structural Strength Evaluation Department, National Maritime Research Institute Mitaka, Tokyo, Japan In our previous research, a series of numerical simulations based on smoothed particle hydrodynamic (SPH) theory...

...) facility to an LNG carrier, drilling vessels, or offshore wind turbines, also forms a very narrow gap in offshore operations. The characteristic scales of the gaps are very small in comparison with the typical dimensions of those floating modules. The fluid resonance in the narrow gaps tuned...

... excitations: one for the impulse pressure comparison, and the other for the local flow comparison. Obvious effects of the density ratio had been investigated. Introduction Sloshing in LNG carriers can lead to large impact loads on a containment system. It is important to assess these impact loads...

... and damage the tank internal structure. To avoid this, membrane-type liquefied natural gas (LNG) carriers are only allowed to operate with almost full or almost empty filling levels. However, in some applications, operations with partially filled tanks are inevitable, such as in the floating LNG (FLNG...

... locally inspected, and the results are statistically post-processed and compared. It is found that the installation of sensors on both sides can reduce the uncertainty of the experiments. Introduction Assessing the sloshing impacts of liquefied natural gas (LNG) cargo holds has been an important design...

... in the actual sea environment. Therefore, the precise prediction of the added resistance is of great importance for developing highly energy efficient vessels. In this paper, the numerical and experimental studies are performed to estimate the added resistance of a liquefied natural gas (LNG) carrier. A series...

...Chong Ma; Masayoshi Oka; Takahiro Ando; Naoya Matsubara A new concept of the liquefied natural gas (LNG) tank shape has been proposed based on the conventional Moss tank to improve the tank storage efficiency. In this research, a series of model tests are conducted for both new shape...

... supply, liquefied natural gas (LNG) has become one of the emerging resources to replace oil as well as renewable energies such as solar, offshore wind, etc. The recent drastic fall of oil prices requires a variety of innovations for more economic solutions and earlier first oil. In spite of state...

... is of tremendous importance. The scenarios where such an arrangement is found include offshore installations; Liquefied Natural Gas-Floating, Production, Storage, and Offloading (LNG-FPSO) systems; and underway replenishment of ships advancing in waves. In these cases, the hydrodynamic forces and motion responses...

.... The development of suitable welding consumables is of significant importance in the commercial application of this new material for cryogenic applications. Specifically, flux-cored arc welding consumables that allow all-positional welding for high-Mn steel are required to fabricate liquefied natural gas (LNG...

...Dimitrios I. Stavrou; Nikolaos P. Ventikos; Spyros A. Mavrakos This paper presents a fuzzy inference system (FIS) methodology for a real-time dynamic monitoring of loading arm reactions during liquefied natural gas (LNG) side-by-side offloading operations, which may provide a practical approach...

... hydrodynamics, the entrapped air at the impact belongs to one of the important hydrodynamic phenomena associated with the water-entry-induced slamming of the ship, the sloshing-induced slamming in a liquefied natural gas (LNG) tank, and the steep-wave-induced impact on a vertical wall (Gao et al., 2012; Lugni...

...Philipp Behruzi; Diana Gaulke; Dennis Haake; Laurent Brosset This paper focuses on large sloshing waves that may impact the side walls or the ceiling of prismatic liquefied natural gas (LNG) ship tanks. Large pressure peaks may occur locally, which may damage the containment system. The physics...

... Engineers liquified natural gas Fluid Dynamics polar engineering Upstream Oil & Gas maximum impact pressure hull Reservoir Characterization gas monetization Simulation free surface international journal LNG Engineering time history Offshore impact pressure numerical study coupling...