Experimental Thermal and Fluid Science, Journal Year: 2024, Volume and Issue: unknown, P. 111364 - 111364
Published: Nov. 1, 2024
Language: Английский
Journal of Materials Research and Technology, Journal Year: 2024, Volume and Issue: 29, P. 3291 - 3302
Published: Feb. 11, 2024
Optimising solid-phase reactions at the interface between an iron-based soft magnetic powder matrix and inorganic oxide ceramic insulating layer in composites is effective method to overcome inverse relationship conductivity energy losses these materials. However, are currently based on using highly reactive aluminium within powders. Herein, reaction ZnSO4 FeSiCr was successfully conducted afford formation of FeSiCr-based composites, which characterised by a three-layer structure comprising FeSiCr, Si Cr-rich ZnO·SiO2·Cr2O3 composite layer. Thermal decomposition releases O2, induces migration Cr atoms from FeSi3.7Cr4.5 towards their subsequent reaction; this increases phase content enhances crystalline order matrix. Furthermore, effectively insulated The resulting materials with exhibit low core (58.5 kW/m3), high permeability (39.1) saturation magnetisation (166.5 emu/g), indicating they ideal choice for high-performance electromagnetic components. proposed innovative strategy oxygen release through thermal salt compounds affords coating fabricated interfacial reactions.
Language: Английский
Citations
39
International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: 56, P. 1139 - 1151
Published: Jan. 3, 2024
Green hydrogen, produced from surplus electricity during peak production, can be injected into subsurface reservoirs and retrieved high-demand periods. In this study, X-ray tomography was employed to examine hysteresis resulting repeated hydrogen injection withdrawal. An unsteady state experiment performed evaluate the distribution of brine after drainage imbibition cycles: images pore-space configuration fluids were taken immediately once had stopped waiting for a period 16 h with no flow. A Bentheimer sandstone sample length 60 mm diameter 12.8 used, at ambient temperature pore pressure 1 MPa. The gas flow rate decreased 2 ml/min 0.08 over three cycles followed by water flooding, while kept constant. results showed presence capillary migration through Ostwald ripening due diffusion dissolved in brine. These phenomena characterized analysis interfacial curvature, area, connectivity occupancy. tended reside larger spaces, consistent water-wet conditions. stopped, aggregated ganglia single large connected ganglion dominating volume. Moreover, Euler characteristic h, indicating an improvement connectivity. work implies that – mass transport leads less better than would assumed ignoring effect, as done assessments hydrocarbon trapping.
Language: Английский
Citations
26
International journal of greenhouse gas control, Journal Year: 2025, Volume and Issue: 141, P. 104318 - 104318
Published: Jan. 22, 2025
Language: Английский
Citations
1
Energy & Fuels, Journal Year: 2025, Volume and Issue: unknown
Published: Feb. 24, 2025
Language: Английский
Citations
1
International Journal of Hydrogen Energy, Journal Year: 2025, Volume and Issue: 114, P. 475 - 485
Published: March 1, 2025
Language: Английский
Citations
1
Advances in Water Resources, Journal Year: 2024, Volume and Issue: 187, P. 104688 - 104688
Published: March 26, 2024
We study pore-scale gas bubble ripening in porous media by combining a mass transfer method based on chemical potential differences with level-set for updating the gas/liquid configurations. examine impact of pore geometry and initial distribution evolution, as well effect mesh refinement numerical parameters controlling adaptive time steps model. Our results show that has significant it determines rate pressure change volume, while area influences scale evolution. Simulations different spatial patterns bubbles high low pressures yield behaviors, classified local global regimes. sandstone volumetrically similar distributions display paths depending locations, emphasizing importance capturing displacement history before investigations.
Language: Английский
Citations
4
Energy & Fuels, Journal Year: 2024, Volume and Issue: 38(10), P. 8853 - 8874
Published: May 6, 2024
Mass transfer by Ostwald ripening can impact the life and volume of capillary-trapped CO2 in subsurface. storage depleted hydrocarbon reservoirs encounters various preferences for wetting porous rock, while different reservoir pressures miscibility between oil. The behavior ganglia under such conditions is hitherto unknown. Herein, we study pressure wettability on presence oil (decane) water at pore scale, using a previously developed model that calculates mass based chemical potential differences stationary three-phase fluid configurations with multiphase level-set method. Through comprehensive set pore-scale simulations 2D 3D geometries, show immiscible faster than near-miscible conditions, despite fact permeability coefficients mass-transfer equation are higher condition. longer equilibration time increased occurs because lower CO2–liquid interfacial tensions contact angles closer to 90° lead bubble capillary pressures, bubbles, gradients volume. Ripening strong states where far (or higher) 90°. We find pressure, wettability, oil/water alter direction hence distribution thermodynamic equilibrium. Simulations residual configuration sandstone leads growth larger ganglia, dissolution small redistribution trapped ganglia.
Language: Английский
Citations
4
Energy, Journal Year: 2025, Volume and Issue: 316, P. 134503 - 134503
Published: Jan. 11, 2025
Language: Английский
Citations
0
Defence Technology, Journal Year: 2025, Volume and Issue: unknown
Published: Feb. 1, 2025
Language: Английский
Citations
0
Journal of Hydrology, Journal Year: 2025, Volume and Issue: unknown, P. 133118 - 133118
Published: March 1, 2025
Language: Английский
Citations
0