High Pressure Hydrogen Storage Study of Few Layer Graphene-Transition Metal Alloy Nanocomposite

Graphene ◽  
2014 ◽  
Vol 2 (2) ◽  
pp. 123-127
Author(s):  
B. P. Vinayan ◽  
S. Ramaprabhu
Keyword(s):  
High Pressure ◽  
Transition Metal ◽  
Hydrogen Storage ◽  
Metal Alloy ◽  
Transition Metal Alloy ◽  
Layer Graphene ◽  
Storage Study ◽  
Few Layer Graphene ◽  
Pressure Hydrogen

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

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.

Magnetic properties of 3d-transition-metal alloy clusters: (Fe x Cr1?x ) n

1991 ◽  
Vol 19 (1-4) ◽  
pp. 263-265 ◽  
Author(s):  
A. Vega ◽  
J. Dorantes-D�vila ◽  
G. M. Pastor ◽  
L. C. Balb�s
Keyword(s):  
Magnetic Properties ◽  
Transition Metal ◽  
Metal Alloy ◽  
Transition Metal Alloy ◽  
Alloy Clusters

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
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