Utilization of CO2 and N2 as cushion gas in underground gas storage process: A review

S Shoushtari, H Namdar, A Jafari - Journal of Energy Storage, 2023 - Elsevier
Due to the significance of gas storage in recent years, the importance of its most crucial
operational and economic aspect, the cushion gas, has come under great scrutiny. The …

Structure and properties of supercritical water: Experimental and theoretical characterizations

N Yoshida, M Matsugami, Y Harano, K Nishikawa… - J, 2021 - mdpi.com
Water in the supercritical region of the phase diagram exhibits a markedly different structure
and properties from that at ambient conditions, which is useful in controlling chemical …

Diffusion of hydrocarbons diluted in supercritical carbon dioxide

D Saric, G Guevara-Carrion, Y Gaponenko… - Scientific reports, 2023 - nature.com
Mutual diffusion of six hydrocarbons (methane, ethane, isobutane, benzene, toluene or
naphthalene) diluted in supercritical carbon dioxide (CO 2) is studied by molecular …

Thermodynamics of supercritical carbon dioxide mixtures across the Widom line

D Saric, G Guevara-Carrion, J Vrabec - Physical Chemistry Chemical …, 2022 - pubs.rsc.org
Supercritical carbon dioxide (scCO2) mixtures are essential for many industrial applications.
However, the knowledge of their thermophysical properties in the extended critical region is …

[HTML][HTML] Thermodynamic efficiency of subcritical and transcritical power cycles utilizing selected ACZ working fluids

S Daniarta, AR Imre, P Kolasiński - Energy, 2022 - Elsevier
An improvement of the thermodynamic efficiency of machines and devices applied for
energy conversion is nowadays one of the most important research topics. Increased …

Utilization of CO2 as Cushion Gas for Depleted Gas Reservoir Transformed Gas Storage Reservoir

C Cao, J Liao, Z Hou, H Xu, F Mehmood, X Wu - Energies, 2020 - mdpi.com
Underground gas storage reservoirs (UGSRs) are used to keep the natural gas supply
smooth. Native natural gas is commonly used as cushion gas to maintain the reservoir …

Title High-power heat release in supercritical water: insight into the heat transfer deterioration problem

SB Rutin, AA Igolnikov, PV Skripov - Journal of Engineering …, 2020 - Springer
The investigation is focused on the phenomenon of heat transfer deterioration (HTD),
inhibiting the use of supercritical fluids in the processes in which high-power local heat …

Conditions and thermophysical properties for transport of hydrocarbons and natural gas at high pressures: Dense phase and anomalous supercritical state

LM Almara, GX Wang, V Prasad - Gas Science and Engineering, 2023 - Elsevier
Hydrocarbons and natural gas, like other fluids exhibit anomalous behavior in the vicinity of
their critical points (P c, T c), where flow oscillations, thermal instabilities, and decreased …

Thermodynamic analysis of anomalous region, critical point, and transition from subcritical to supercritical states: Application to van der Waals and five real fluids

GX Wang, LM Almara, V Prasad - Physics of Fluids, 2024 - pubs.aip.org
All fluids exhibit large property-variations near the critical point in a region identified as the
anomalous state. The anomaly starts in the liquid and extends well into the supercritical …

A new criterion for vanishing points of Widom lines of CO2/natural gas mixture: Application to pipeline and compressor units in CCUS

W Zhang, X Kang, X Gao, Y Li - International Journal of Greenhouse Gas …, 2024 - Elsevier
The Widom lines of mixture indicate the abnormal response behavior of properties of mixed
supercritical fluid near the critical point, determining operating conditions in supercritical …