Nanostructured adsorbents for hydrogen storage at ambient temperature: high-pressure measurements and factors influencing hydrogen spillover

RSC Advances ◽  
2013 ◽  
Vol 3 (46) ◽  
pp. 23935 ◽  
Author(s):  
Lifeng Wang ◽  
Anthony J. Lachawiec, Jr ◽  
Ralph T. Yang
Keyword(s):  
High Pressure ◽  
Hydrogen Storage ◽  
Ambient Temperature ◽  
Hydrogen Spillover ◽  
Pressure Measurements ◽  
Factors Influencing

The Inductive Coil Technique for High-Pressure Measurements: An Analysis of Nonhomogeneous Material Environment as a Source of Irreproducibility and Error

1967 ◽  
Vol 89 (3) ◽  
pp. 554-560 ◽  
Author(s):  
A. A. Giardini
Keyword(s):  
High Pressure ◽  
Internal Pressure ◽  
Elastic Constants ◽  
Graphical Form ◽  
Pressure Measurements ◽  
Pressure Data ◽  
Nonhomogeneous Material ◽  
Resistivity Measurements ◽  
Material Environment ◽  
Critical Yield

Significant sources of error independent of the apparatus are analyzed on the basis of experimental experience and elastic theory. All are mechanical in nature and subject to corrective action. The most serious is found to be self-generating internal pressure differences which result from differential elastic and dimensional values in multicomponent assemblies. High-pressure data on elastic constants, relative critical yield stresses, radial displacements, and ratios of external to internal pressure for various compositional arrangements of pyrophyllite, MgO, NaCl, and AgCl are given in graphical form. Observance of suggested corrective measures can render the inductive coil technique capable of operational accuracies of 2 percent or better in compressibility and resistivity measurements.

Crack Growth Analysis of High-Pressure Equipment for Hydrogen Storage

2013 ◽  
Author(s):  
Z. Y. Li ◽  
C. L. Zhou ◽  
Y. Z. Zhao ◽  
Z. L. Hua ◽  
L. Zhang ◽  
...  
Keyword(s):  
High Pressure ◽  
Hydrogen Storage ◽  
Crack Growth ◽  
Growth Analysis ◽  
Model Material ◽  
Hydrogen Gas ◽  
Cycle Life ◽  
Cold Worked ◽  
Type 304 ◽  
Pressure Hydrogen

Crack growth analysis (CGA) was applied to estimate the cycle life of the high-pressure hydrogen equipment constructed by the practical materials of 4340 (two heats), 4137, 4130X, A286, type 316 (solution-annealed (SA) and cold-worked (CW)), and type 304 (SA and CW) in 45, 85 and 105 MPa hydrogen and air. The wall thickness was calculated following five regulations of the High Pressure Gas Safety Institute of Japan (KHK) designated equipment rule, KHKS 0220, TSG R0002, JB4732, and ASME Sec. VIII, Div. 3. We also applied CGA for four typical model materials to discuss the effect of ultimate tensile strength (UTS), pressure and hydrogen sensitivity on the cycle life of the high-pressure hydrogen equipment. Leak before burst (LBB) was confirmed in all practical materials in hydrogen and air. The minimum KIC required for LBB of the model material with UTS of even 1500 MPa was 170 MPa·m0.5 in 105 MPa. Cycle life qualified 103 cycles for all practical materials in air. In 105 MPa hydrogen, the cycle life by KIH was much shorter than that in air for two heats of 4340 and 4137 sensitive to hydrogen gas embrittlement (HGE). The cycle life of type 304 (SA) sensitive to HGE was almost above 104 cycles in hydrogen, while the cycle life of type 316 (SA and CW) was not affected by hydrogen and that of A286 in hydrogen was near to that in air. It was discussed that the cycle life increased with decreasing pressure or UTS in hydrogen. This behavior was due to that KIH increased or fatigue crack growth (FCG) decreased with decreasing pressure or UTS. The cycle life data of the model materials under the conditions of the pressure, UTS, KIH, FCG and regulations in both hydrogen and air were proposed quantitatively for materials selection for high-pressure hydrogen storage.

Transient flow behaviors of the check valve with different spool-head angle in high-pressure hydrogen storage systems

2022 ◽  
Vol 46 ◽  
pp. 103761
Author(s):  
Jianjun Ye ◽  
Zhenhua Zhao ◽  
Junxu Cui ◽  
Zhengli Hua ◽  
Wenzhu Peng ◽  
...  
Keyword(s):  
High Pressure ◽  
Hydrogen Storage ◽  
Transient Flow ◽  
Storage Systems ◽  
Check Valve ◽  
Pressure Hydrogen

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.

scholarly journals Analysis of factors influencing the rate of germination of spores of Bacillus subtilis by very high pressure

2007 ◽  
Vol 102 (1) ◽  
pp. 65-76 ◽  
Author(s):  
E.P. Black ◽  
J. Wei ◽  
S. Atluri ◽  
D.E. Cortezzo ◽  
K. Koziol-Dube ◽  
...  
Keyword(s):  
High Pressure ◽  
Bacillus Subtilis ◽  
Factors Influencing ◽  
Very High

scholarly journals Cover Picture: High-Pressure Raman and Calorimetry Studies of Vanadium(III) Alkyl Hydrides for Kubas-Type Hydrogen Storage (ChemPhysChem 6/2016)

ChemPhysChem ◽  
2016 ◽  
Vol 17 (6) ◽  
pp. 778-778 ◽  
Author(s):  
Leah Morris ◽  
Michel L. Trudeau ◽  
Daniel Reed ◽  
David Book ◽  
David M. Antonelli
Keyword(s):  
High Pressure ◽  
Hydrogen Storage ◽  
And Calorimetry ◽  
Alkyl Hydrides

The High Pressure Hydrogen Storage Study of Functionalized Graphite Nanoplatelets

2011 ◽  
Author(s):  
B. P. Vinayan ◽  
K. Sethupathi ◽  
S. Ramaprabhu ◽  
Alka B. Garg ◽  
R. Mittal ◽  
...  
Keyword(s):  
High Pressure ◽  
Hydrogen Storage ◽  
Graphite Nanoplatelets ◽  
Storage Study ◽  
Pressure Hydrogen
Sign in / Sign up

Export Citation Format

Share Document