The Horizontal GRP Storage Vessel: A Study of the Stresses in the Support Region

1985 ◽  
pp. 525-539
Author(s):  
A. S. Tooth ◽  
W. M. Banks ◽  
A. J. Warrender
Keyword(s):  
Storage Vessel

Fracture Mechanics Assessment of Hydrogen Storage Vessel

2021 ◽  
Author(s):  
Xiaoliang Jia ◽  
Zhiwei Chen ◽  
Fang Ji
Keyword(s):  
High Pressure ◽  
Fracture Mechanics ◽  
Hydrogen Storage ◽  
High Strength Steel ◽  
High Strength ◽  
Linear Elastic Fracture Mechanics ◽  
Storage Vessel ◽  
Linear Elastic ◽  
Elastic Fracture ◽  
Hydrogen Storage Vessel

Abstract High strength steel is usually used in fabrication of hydrogen storage vessel. The fracture toughness of high strength steel will be decreased and the crack sensitivity of the structures will be increased when high strength steels are applied in hydrogen environment with high pressure. Hence, the small cracks on the surface of pressure vessel may grow rapidly then lead to rupture. Therefore, this paper makes a series of research on how to evaluate the 4130X steel hydrogen storage vessel with fracture mechanics. This study is based on the assumption that there is a semi-elliptic crack on internal surface of hydrogen storage vessel. First of all, based on linear elastic fracture mechanics, the stress intensity factors and crack tolerance of 4130X steel hydrogen storage vessel have been calculated by means of finite element method based on interaction integral theory and polynomial-approximated approach from GB/T 34019 Ultra-high pressure vessels. Then, a comparative study has been made from the results of above methods to find out the difference between them. At last, the fatigue life of a 4130X steel hydrogen storage vessel has been predicted based on linear elastic fracture mechanics and Paris formula. The calculation methods and analysis conclusion can be used to direct the design and manufacture of hydrogen storage vessel.

Acoustic emission monitoring during hydrotesting of a mounded LPG storage vessel of petrochemical industry

2016 ◽  
Vol 9 (4) ◽  
pp. 251-264
Author(s):  
C.K. Mukhopadhyay ◽  
T.K. Haneef ◽  
T. Jayakumar ◽  
R. Devaraj ◽  
H.N. Bar ◽  
...  
Keyword(s):  
Acoustic Emission ◽  
Petrochemical Industry ◽  
Acoustic Emission Monitoring ◽  
Storage Vessel ◽  
Emission Monitoring

An Efficient Vacuum-Jacketed Liquid Nitrogen or Liquid Oxygen Storage Vessel

1960 ◽  
pp. 23-26
Author(s):  
N. C. Hallett ◽  
H. W. Altman ◽  
M. L. Yeager ◽  
C. L. Newton
Keyword(s):  
Liquid Nitrogen ◽  
Oxygen Storage ◽  
Liquid Oxygen ◽  
Storage Vessel

INFLUENCE OF NATURAL MOISTURE ON THE CHARACTERISTIC TIME OF METHANE DESORPTION FROM COALS OF VARIOUS DEGREES OF METAMORPHISM

2020 ◽  
pp. 23-32
Author(s):  
Vsevolod Vasylkivskyi ◽  
◽  
Leonid Stefanovich ◽  
Oksana Chesnokova ◽  
◽  
...  
Keyword(s):  
Methane Emission ◽  
Characteristic Time ◽  
Practical Significance ◽  
Characteristic Relaxation Time ◽  
Storage Vessel ◽  
Compressed Gas ◽  
Three Stages ◽  
Methane Desorption ◽  
Kinetics Of ◽  
Metamorphic Series

Goal. To study the effect of natural internal moisture content on the kinetics of methane desorption from coals of varying degrees of metamorphization. Methodology. For the research, coal was used after a long (more than 100 days) preliminary exposure in a dry, closed indoors. The measurements were carried out on several samples of Donbass coals with different volatile content. Two groups of coal samples were used - dry, with natural internal humidity and one sample with artificial humidity of 1.5%. The volumetric method was used for measurements. The method includes three stages: 1st  saturation of coal with compressed methane, 2nd  preliminary discharge of compressed gas from a container with coal after its saturation, and 3rd  collection of methane released by coal into a storage vessel. Before registration of desorption, pressurized gas was discharged from the free volume of containers into the atmosphere. The desorption unit contains a low-temperature trap (78°C) for water vapor and a warming radiator for methane entering the storage vessel. To determine the numerical values of the characteristic time of desorption of methane from coal, we used information on the change in gas pressure in the storage vessel during desorption. To analyze the results, a method based on the concept of a change in the characteristic relaxation time of desorption during methane emission was used. Results. Experimental results show that in wet coals the ratio between the amount of methane in coal and the intensity of its outflow at any desorption site is less than in dry coals. It was found that in coals of the metamorphic series the presence of natural moisture leads to a decrease in the intensity of methane emission, a decrease in the characteristic desorption time and a decrease in the activation energy of methane desorption by 0.4 - 2.5 kJ / mol. The features of the kinetics of desorption indicates competition energetics of interactions between methane and water with the surface of the pores of coal. Scientific novelty. It was found that even without artificial humidification, but in the presence of natural internal moisture in coal, the degassing time during desorption is reduced (in comparison with dry coal). Practical significance. The research results can be used to optimize the duration of hydraulic saturation of the coal seam and the water consumption during coal degassing.

700 bar type IV high pressure hydrogen storage vessel burst – Simulation and experimental validation

2015 ◽  
Vol 40 (38) ◽  
pp. 13183-13192 ◽  
Author(s):  
Juan Pedro Berro Ramirez ◽  
Damien Halm ◽  
Jean-Claude Grandidier ◽  
Stéphane Villalonga ◽  
Fabien Nony
Keyword(s):  
High Pressure ◽  
Hydrogen Storage ◽  
Experimental Validation ◽  
Storage Vessel ◽  
Type Iv ◽  
Hydrogen Storage Vessel ◽  
Pressure Hydrogen

The Analysis of Acoustic Emission Code and the Research of Acoustic Emission Signal of P355NL1 Under Low Temperature of −40°C

2014 ◽  
Author(s):  
Xiao Biao ◽  
Xiaoying Tang ◽  
Nie Liang ◽  
Yao Jianping ◽  
Li Jianrong
Keyword(s):  
Acoustic Emission ◽  
Low Temperature ◽  
Acoustic Emission Signal ◽  
Tensile Specimen ◽  
Acoustic Emission Method ◽  
Emission Method ◽  
Storage Vessel ◽  
Emission Signal ◽  
Whole Process ◽  
Specimen Test

The latest content of acoustic emission code GB/T18182-2012 are shown in this paper. The differences of GB/T18182-2012 and GB18182-2000 are summarized. Acoustic emission method was used to inspect the whole process of tensile specimen test under the temperature of 0°C, −20°C and −50°C. Based on the characteristics of the signal of different temperature condition, some difference of these signals was analyzed and discussed. By using the above result, acoustic emission was applied to inspect a drikold storage vessel.

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