Structural Design Analysis of Wet Gas Storage Tank Reconstruction

2021 ◽  
Keyword(s):  
Structural Design ◽  
Storage Tank ◽  
Gas Storage ◽  
Design Analysis ◽  
Wet Gas

scholarly journals Examples of Solutions for Steel-Concrete Composite Structures in Bridge Engineering / Przykłady Konstrukcji Zespolonych W Budownictwie Mostowym

2015 ◽  
Vol 16 (1) ◽  
pp. 51-68
Author(s):  
Kazimierz Flaga ◽  
Kazimierz Furtak
Keyword(s):  
Structural Design ◽  
Composite Structures ◽  
Concrete Structures ◽  
Design Analysis ◽  
Bridge Engineering ◽  
Structural Composition ◽  
Points Of View

Abstract The aim of the article [1] was to discuss the application of steel-concrete composite structures in bridge engineering in the aspect of structural design, analysis and execution. It was pointed out that the concept of steel-concrete structural composition is far from exhausted and new solutions interesting from the engineering, scientific and aesthetic points of view of are constantly emerging. These latest trends are presented against the background of the solutions executed in Poland and abroad. Particular attention is focused on structures of double composition and steel-concrete structures. Concrete filled steel tubular (CFST) structures are highlighted.

Thermal Analysis on the Shell Stiffeners of Double Steel Wall LNG Storage Tank

2011 ◽  
Vol 105-107 ◽  
pp. 403-407
Author(s):  
Xiao Chun Zhang ◽  
Yuan Qi Cai
Keyword(s):  
Thermal Analysis ◽  
Structural Design ◽  
Storage Tank ◽  
Thermal Field ◽  
Local Buckling ◽  
Thermal Design ◽  
Normal Operation ◽  
Analysis Of Results ◽  
Design Requirements ◽  
Lng Tank

Shell stiffeners are used effectively to prevent preferential local buckling of LNG tank shell. In this paper, Finite element method (FEM) is applied to pay attention to the thermal analysis on the shell stiffeners of double steel wall LNG storage tank. The structural requirements according to British Standard 7777-2:1993 has been considered and then some dimensional adjustments of shell stiffeners are made to evaluate their influence on the thermal field of double steel wall LNG storage tank. Temperature distributions and heat flux of different dimensional shell stiffeners are presented. Though the analysis of results, it puts forward the conclusion that the dimensional design of shell stiffeners used in double steel wall LNG storage tank shall take not only the structural design requirements but also the thermal design ones into consideration in order to finally save cost in both construction and normal operation.

Structural Design Analysis

1991 ◽  
pp. 303-404
Author(s):  
Donald V. Rosato ◽  
David P. Di Mattia ◽  
Dominick V. Rosato
Keyword(s):  
Structural Design ◽  
Design Analysis

Numerical study of steady natural convection in a liquefied natural gas cylindrical storage tank equipped with baffles

2019 ◽  
Vol 234 (5) ◽  
pp. 709-721 ◽  
Author(s):  
Mohamed Haddar ◽  
Moez Hammami ◽  
Mounir Baccar
Keyword(s):  
Rayleigh Number ◽  
Natural Gas ◽  
Lateral Surface ◽  
Storage Tank ◽  
Cooling System ◽  
Numerical Study ◽  
Gas Storage ◽  
Liquefied Natural Gas ◽  
Natural Gas Storage ◽  
Average Temperature

In this paper, a study of cooling system for a liquefied natural gas storage tank is conducted. Our objective is to remedy the heat ingress to the liquefied natural gas from the environment using baffles toward limiting temperature elevation in the tank, and then the Boil-off Gas (BOG) formation. A specific code based on the finite volume method is developed to supply a fine knowledge of the hydrodynamic and thermal liquefied natural gas characteristics in the cylindrical tank heated from bottom and lateral surfaces. The effect of the number, position and dimension of baffles, on the flow structure and thermal behavior, has been analyzed. According to our simulation results, the baffles should be placed at the top of tank nearby the lateral wall as the liquefied natural gas dimensionless average temperature can be reduced by 36%. The installation of four rectangular baffles, equally spaced around the perimeter of the tank, gives better homogenization of the temperature field and decreases the average temperature by about 44% in order to limit BOG formation. Finally, two correlations of the Nusselt number are established for the flat rectangular baffle plates and the lateral surface of the cylindrical liquefied natural gas storage tank as a function of the Rayleigh number, as well as the baffle number. Scaling of these correlations with the Rayleigh number gives exponents of 0.25 and 0.18 for lateral surface and baffle, respectively, which are in good agreement with literature.

Ultrasonic Guided Wave for Pipeline and Storage Tank Corrosion Defect Inspection

2012 ◽  
Author(s):  
Weibin Wang ◽  
Haolin Tong ◽  
Hongjun Dong ◽  
Muyang Ai ◽  
Kai Wu ◽  
...  
Keyword(s):  
Long Range ◽  
Storage Tank ◽  
Gas Storage ◽  
Guided Wave ◽  
Wave System ◽  
Defect Inspection ◽  
Corrosion Defect ◽  
Ultrasonic Guided Wave ◽  
Integrity Management ◽  
And Storage

Pipeline and storage tank corrosion defect inspection is one of the most important concerns for integrity management of oil & gas storage and transportation industry. Besides the internal inspection for pipeline, tri-axis high-resolution magnetic leakage inspection technique which is applied for trunk line inspection, long range ultrasonic guided wave technique based on Lamb wave is adopted for inaccessible part inspection in technique package for pipeline inspection in PetroChina. Corrosion in the tank floor and wall is a serious threat for environmental and economic safety. Owing to the capabilities of ultrasonic guided wave which are long-range, in-plane propagation, in-service storage tank floor/wall inspection becomes possible by employing an array of SH wave transducers mounting on the edge of the outer storage tank floor. At this point, ultrasonic guided wave shows its capability for pipeline and storage tank corrosion defect inspection. With the advancement of high-performance transducer, its capability will be boosted for even longer and remoter detection. Currently, ultrasonic guided wave system for pipeline could detect defect 200 m away in ideal case while 3∼6 m for storage tank floor in practical case. The complexity of the application of ultrasonic guided wave in tank floor inspection lies in the object containing multiple lap joint welds along the large diameter of the tank (up to 100 m) and the complicated reconstruction of the two-dimensional defect distribution information. The prototype of ultrasonic guided wave system for storage tank is able to detect defects along the edge of storage tank floor. Once the propagation mechanism at overlap joint welds is broken through, the system capability is believed to be greatly improved. The main scope of the paper is to introduce the ultrasonic guided wave principles and the system design of the inspection systems for pipeline and storage tank, respectively, including the system electrical module, hardware program and the module of data acquisition, analysis and processing. Besides, the field application study cases are included to show the capability of both systems and their potential for integrity management in oil & gas storage and transportation field.

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