Characteristics of constant pressure dehydrogenation and construction of linear diffusion model for solid hydrogen storage materials: A case study of TiMn1.5 alloy

Dong, Jun; Wang, Xinyue; Pan, Xuhai; Chang, Chenxu

doi:10.1016/j.fuel.2024.132710

Fuel

2024

DOI: 10.1016/j.fuel.2024.132710

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Characteristics of constant pressure dehydrogenation and construction of linear diffusion model for solid hydrogen storage materials: A case study of TiMn1.5 alloy

Jun Dong,

Xinyue Wang,

Xuhai Pan

et al.

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2024

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Cited by 1 publication

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Analysis of dominant flow in tectonic coal during coalbed methane transport

Zhu,

Su,

Cheng

et al. 2024

Physics of Fluids

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Diffusion and seepage are the main flow forms of coal seam gas transport, and are one of the key factors in the selection of gas extraction improvement methods. Changes in the physical structure of tectonic coal make gas transport more complex during coalbed methane extraction. In this paper, we develop a multi-field coupled model of methane transport in coal seams, taking into account the effects of tectonics, and theoretically analyze the dominant flow patterns for methane extraction. Then, the evolution of gas dominated flow is analyzed for different initial pressures, initial permeabilities, and initial diffusion coefficients of tectonic and intact coal seams. The results show that the amount of daily methane seepage in tectonic coal increases with the initial pressure of the coal reservoir, but decreases with the initial diffusion coefficient of the coal reservoir. Methane seepage in tectonic coal has a longer control time than in intact coal at different initial pressures, initial permeabilities, and initial diffusion coefficients of the coal reservoir. For different coal reservoir initial pressures, coal reservoir initial permeabilities, and coal reservoir initial diffusion coefficients, the maximum seepage control time for tectonic coal is 20, 17, and 15 times longer than for intact coal, respectively. Finally, the discrepancies of methane dominant flow in tectonic coal and intact coal during methane extraction were analyzed by using the double bottleneck flow model, and methods for methane enhanced extraction in tectonic coal and intact coal were discussed. The results presented in this paper may provide a theoretical reference for the extraction of differentiated gas in coal seams.

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Analysis of dominant flow in tectonic coal during coalbed methane transport

Zhu,

Su,

Cheng

et al. 2024

Physics of Fluids

View full text Add to dashboard Cite

show abstract

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Characteristics of constant pressure dehydrogenation and construction of linear diffusion model for solid hydrogen storage materials: A case study of TiMn1.5 alloy

Cited by 1 publication

References 29 publications

Analysis of dominant flow in tectonic coal during coalbed methane transport

Analysis of dominant flow in tectonic coal during coalbed methane transport

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