Results 81 to 90 of about 6,866 (241)

Evaporating-freezing phenomena of water droplets during quick depressurization

, 2012
The evaporating-freezing process of single pensile water droplet during quick depressurization is studied experimentally.The typical characteristics of the thermal-dynamical behaviors of this process are obtained.Based on the experimental observations ...
赵建福, 康琦, 杜王芳
core  

CO2 transport–Depressurization, heat transfer and impurities

, 2011
Detailed knowledge on depressurization, heat transfer and impurities in CO2 pipelines has shown to be important for safe and cost effective design of CCS chains.
Drescher, Michael, Jana Jakobsen, Gelein de Koeijer, Michael Drescher, Li, Hailong, Henrik Borch, Jan, Jakobsen, Jana, de Koeijer, Gelein, Wilhelmsen, Øivind, Hailong Li, Øivind Wilhelmsen, Jan Henrik Borch   +11 more
core   +1 more source

Depressurization‐Induced Fines Migration in Sediments Containing Methane Hydrate: X‐Ray Computed Tomography Imaging Experiments [PDF]

, 2018
Depressurization of hydrate‐bearing sediments (HBS) can cause the movement of fine particles, and in turn, such fines migration affects fluid flow and mechanical behavior of sediments, ultimately affecting long‐term hydrocarbon production and wellbore ...
Lee, Joo Yong, Timothy J. Kneafsey, Han, Gyeol, Kneafsey, Timothy J., Joo Yong Lee, Kwon, Tae‐Hyuk, Tae‐Hyuk Kwon, Kwon, Tae-Hyuk, Gyeol Han, Kneafsey, Timothy J   +9 more
core   +1 more source

Numerical Simulation of Optimized Step-Wise Depressurization for Enhanced Natural Gas Hydrate Production in the Nankai Trough of Japan

, 2023
The utilization of natural gas hydrates as an alternative energy source has garnered significant attention due to their proven potential. Despite the successful offshore natural gas hydrate production tests, commercial exploitation has not been achieved.
Kunpeng Xue, Tao Yu, Yu Liu, Junchen Lv
core   +1 more source

Techniques to mitigate the admission of radon inside buildings

Open Engineering
In this work, the factors that influence indoor radon (Rn) level and most usual methods to prevent or mitigate Rn are presented and discussed, according to their way of action.
Real Luís Pimentel, Linares-Alemparte Pilar, Poças Ana Reis, Viegas João Godinho   +3 more
doaj   +1 more source

Research progress and current status of dynamic wave propagation characteristics in rock mass: A review

Deep Underground Science and Engineering, EarlyView.
This review elucidates the velocity–dispersion–attenuation coupling mechanisms of wave propagation in rock masses, compares six representative models, and reveals how pressure, temperature, mineral composition, and anisotropy jointly control dynamic responses in complex geological media.
Jiajun Shu, Tao Li, Ruiqi Yuan, Yue Li, Bingni Wu, Bo Liu, Zhengding Deng, Galindo Rubén, Fausto Molina‐Gómez   +8 more
wiley   +1 more source

Optimal driving force for the dissociation of CH4 hydrates in hydrate-bearing sediments using depressurization

, 2021
In this study, three kinds of driving forces for the dissociation of CH4 hydrates were experimentally investigated to determine which was optimal for a consistent control of the depressurization process. A specially designed one-dimensional (1-D) reactor
Seo, Yongwon, Mok, Junghoon, Lee, Yohan, Choi, Wonjung, Lee, Jaehyoung   +4 more
core   +1 more source

Depressurization of a hydrothermal system following the August and November 2012 Te Maari eruptions of Tongariro, New Zealand

Geophysical Research Letters, 2016
In 2012, two phreatic eruptions occurred at New Zealand's Tongariro volcano for the first time in over a century. Interferometric Synthetic Aperture Radar data collected by the Italian Space Agency's COSMO‐SkyMed satellite constellation, indicates up to ...
I. J. Hamling, C. A. Williams, S. Hreinsdóttir   +2 more
doaj   +1 more source

Investigation on tunnel stability considering pipe‐roof support with transparent soil technology

Deep Underground Science and Engineering, EarlyView.
This study integrates transparent soil technology, 3D reconstruction and numerical simulation to captures the full‐field deformation of shield tunnel instability. Results demonstrate that pipe‐roof support enhances stability via the “soil‐arching barrier effect,” effectively restraining failure wedge development by extending stress transfer paths ...
Zhi Jia, Yunpeng Ji, Zhao Lu, Honghua Zhao, Limin Zhang   +4 more
wiley   +1 more source

Behavior of graphite during rapid depressurization

, 1981
Three grades of graphite used in the HTGR were subjected to depressurization rates of greater than 6500 psi/sec. All of the graphites survived the rapid depressurization with no outward signs of change.
Beavan, L. A., Eatherly, W. P.
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