@Article{icces.2023.010378,
AUTHOR = {Karim Ragui, Mengshuai Chen, Lin Chen},
TITLE = {Key Transport Mechanisms in Supercritical CO<sub>2</sub> Based Pilot Micromodels  Subjected to Bottom Heat and Mass Diffusion},
JOURNAL = {The International Conference on Computational \& Experimental Engineering and Sciences},
VOLUME = {27},
YEAR = {2023},
NUMBER = {3},
PAGES = {1--2},
URL = {http://www.techscience.com/icces/v27n3/55178},
ISSN = {1933-2815},
ABSTRACT = {The ambiguous dynamics associated with heat and mass transfer of invading carbon dioxide in sub-critical 
and supercritical states, as well as the response of pore-scale resident fluids, play a key role in understanding 
CO<sub>2</sub> capture and storage (CCUS) and the corresponding phase equilibrium mechanisms. To this end, this 
paper reveals the transport mechanisms of invading supercritical carbon dioxide (sCO<sub>2</sub>) in polluted 
micromodels using a variant of Lattice-Boltzmann Color Fluid model and descriptive experimental data. The 
breakthrough time is evaluated by characterizing the displacement velocity, the capillary to pressuredifference ratio, and the transient heat and mass diffusion at a series of micromodels with scaling porethroats. Wet micromodels are also processed to establish a reference database towards a natural extension 
to saline aquifers. The prime recorded sub-regimes are remarkably categorized as oscillatory while the 
interfacial velocity of sCO<sub>2</sub>/pollutant is jumping into oscillatory magnitudes. The transient saturation of sCO<sub>2</sub>
would be significantly accelerated with decreasing pore-throats, demonstrating increased invasion 
efficiency. Accordingly, a special model would be established to account for the transport mechanisms of 
invading sCO<sub>2</sub> towards efficient geological sequestration.},
DOI = {10.32604/icces.2023.010378}
}