4.6 Article

Interfacial Effects during Phase Change in Multiple Levitated Tetrahydrofuran Hydrate Droplets

Related references

Note: Only part of the references are listed.
Article Engineering, Chemical

Piezo-elasticity and stability limits of monocrystal methane gas hydrates: Atomistic-continuum characterization

Xiaodan Zhu et al.

Summary: This paper uses density functional theory to simulate the thermodynamic and elastic responses of gas hydrates under different pressures. It determines the theoretical pressure stability limits of monocrystal defect-free sI methane gas hydrates and studies the brittle-to-ductile transitions of gas hydrates. The study provides new data and fundamental understanding for technological applications.

CANADIAN JOURNAL OF CHEMICAL ENGINEERING (2023)

Article Chemistry, Multidisciplinary

Atomistic Description of Interdroplet Ice-Bridge Formation during Condensation Frosting

Stefano Curiotto et al.

Summary: The propagation of frost in supercooled dew droplets occurs through the formation of ice protrusions that bridge ice particles and still-liquid droplets. A Kinetic Monte Carlo (KMC) model is developed to study the formation kinetics of these ice protrusions. The KMC simulations accurately reproduce the experimental results reported in the literature. The elongation speed of the ice protrusions is not affected by the droplet size but increases with a decrease in interdroplet distance, an increase in temperature, or an increase in substrate wettability.

LANGMUIR (2023)

Article Thermodynamics

Reservoir stimulation of marine natural gas hydrate-a review

Xiaochu Wang et al.

Summary: Low production rate, limited recovery range, and short period of stabilized production in NGH field trials indicate a large gap to commercial production. Reservoir stimulation methods such as hydraulic fracturing, jet breaking, overlying layer modification, and split grouting have been studied to improve gas recovery efficiency. Split grouting is the most promising method for both reservoir skeleton reinforcement and permeability enhancement. Further evaluations are needed for production enhancement in non-diagenetic hydrate reservoirs considering the evolution of artificial seepage channels. Future developments should focus on obtaining reliable results of NGH reservoir fracability, bridging the gap between concept design and practical application, and ensuring safe and efficient gas production through reservoir stimulation and stability.

ENERGY (2023)

Article Engineering, Environmental

Gas hydrate nucleation in acoustically levitated water droplets

Kwanghee Jeong et al.

Summary: This study reports on subcooling-dependent measurements of hydrate formation on water droplets suspended in high-pressure natural gas via acoustic levitation. It reveals that formation rates of hydrates in different systems are influenced by different nucleation sites, providing important insights for hydrate formation studies.

CHEMICAL ENGINEERING JOURNAL (2022)

Article Chemistry, Multidisciplinary

Criteria for Crack Formation and Air Invasion in Drying Colloidal Suspensions

Paul Lilin et al.

Summary: The drying process of sessile drops of aqueous colloidal suspensions leads to the formation of dense particle deposits. By using a hydrodynamic model, it has been found that the pressure inside the deposit controls the formation of cracks and the onset of air invasion, and also explains the transition between two distinct air invasion regimes.

LANGMUIR (2022)

Article Energy & Fuels

Multiscale Piezoelasticity of Methane Gas Hydrates: From Bonds to Cages to Lattices

Xiaodan Zhu et al.

Summary: Natural gas, recognized as a green energy resource, has the potential to generate energy with fewer pollutants and carbon dioxide emissions compared to coal and petroleum. It is also considered a competitive candidate for carbon dioxide sequestration. However, the instability of gas hydrates during exploration poses a major barrier to methane gas extraction and carbon dioxide sequestration. This study investigates the stability limits and piezo effect of structure I (sI) methane gas hydrates at 0 K using a multiscale approach, providing valuable insights for engineering correlations and fundamental understanding.

ENERGY & FUELS (2022)

Article Chemistry, Physical

TinyLev acoustically levitated water: Direct observation of collective, inter-droplet effects through morphological and thermal analysis of multiple droplets

Adam McElligott et al.

Summary: This study used acoustic levitation techniques to observe the formation of ice crystals in pure water droplets. The findings suggest that nucleation is a secondary process dependent on the cooling rate. The study also reveals that droplet geometry is influenced by streaming forces and surface tension. During freezing and melting, the droplets undergo rotation and exhibit significant volumetric expansion.

JOURNAL OF COLLOID AND INTERFACE SCIENCE (2022)

Article Chemistry, Multidisciplinary

Model for the Solid-Liquid Interfacial Free Energy at High Pressures

Dane M. Sterbentz et al.

Summary: This article presents a model for the high-pressure conditions of the solid-liquid interfacial free energy by considering the enthalpies of interactions between pairs of atoms or molecules and the contribution of interface roughness. The model is applicable to diverse materials and has been validated with models for water and gallium. The application of this model in simulations of dynamic compression experiments shows good agreement with observed kinetics.

LANGMUIR (2022)

Article Thermodynamics

Measurements and modeling of the hydrate phase equilibria of CO2 in the presence of promoters

Liang Mu et al.

Summary: In this study, the hydrate phase equilibrium conditions and dissociation enthalpies of CO2 in the presence of tetrahydrofuran (THF), cyclopentane (CP), and tetrabutylammonium bromide (TBAB) were measured. The results showed that the presence of promoters increased the hydrate phase equilibrium temperature of CO2 and its dissociation enthalpies significantly. A thermodynamic framework was proposed to predict the hydrate phase equilibria of CO2 in the presence of promoters, and the predictions were in good agreement with the measured data.

FLUID PHASE EQUILIBRIA (2022)

Article Engineering, Environmental

Splitting tensile mechanical properties of plain ice and fiber-reinforced ice

Xiaonan Lou et al.

Summary: This study investigated the tensile properties of plain ice and fiber-reinforced ice and found that the FRI exhibited ductile failure and significantly improved deformation capacity compared to plain ice. The tensile strength of FRI was approximately 2-3.5 times higher than plain ice and was negatively related to temperature but positively related to loading rate and fiber content. A tensile strength model was established, and design values for ice splitting tensile strength were recommended based on reliability theory. This study lays the foundation for further promoting the application of ice in architecture.

COLD REGIONS SCIENCE AND TECHNOLOGY (2021)

Article Energy & Fuels

Mechanical properties of polycrystalline tetrahydrofuran hydrates as analogs for massive natural gas hydrates

Masato Kida et al.

Summary: The study investigated the mechanical properties of two types of tetrahydrofuran hydrates as analogs for massive natural gas hydrates. The tetrahydrofuran hydrate specimens exhibited brittle failure under compression, showing good agreement with the mechanical properties of natural hydrates. Transparent tetrahydrofuran hydrate specimens had significantly higher similarity to natural specimens in terms of strength, while cloudy specimens showed higher similarity in terms of elastic modulus.

JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING (2021)

Article Spectroscopy

Stability evaluation of water droplets levitated by a TinyLev acoustic levitator for laser induced breakdown spectroscopy

M. A. Meneses-Nava et al.

SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY (2020)

Article Engineering, Chemical

THF Hydrates as Model Systems for Natural Gas Hydrates: Comparing Their Mechanical and Vibrational Properties

Thomas M. Vlasic et al.

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH (2019)

Article Chemistry, Physical

Hydrate nucleation and growth on water droplets acoustically-levitated in high-pressure natural gas

Kwanghee Jeong et al.

PHYSICAL CHEMISTRY CHEMICAL PHYSICS (2019)

Review Energy & Fuels

Hydrophobic Effect on Gas Hydrate Formation in the Presence of Additives

Ngoc N. Nguyen et al.

ENERGY & FUELS (2017)

Article Chemistry, Physical

The effects of ice on methane hydrate nucleation: a microcanonical molecular dynamics study

Zhengcai Zhang et al.

PHYSICAL CHEMISTRY CHEMICAL PHYSICS (2017)

Article Instruments & Instrumentation

TinyLev: A multi-emitter single-axis acoustic levitator

Asier Marzo et al.

REVIEW OF SCIENTIFIC INSTRUMENTS (2017)

Article Engineering, Chemical

Nucleation curves of methane - propane mixed gas hydrates in hydrocarbon oil

Nobuo Maeda

CHEMICAL ENGINEERING SCIENCE (2016)

Review Chemistry, Multidisciplinary

A Review of Classical and Nonclassical Nucleation Theories

S. Karthika et al.

CRYSTAL GROWTH & DESIGN (2016)

Article Chemistry, Physical

Critical Radius of Supercooled Water Droplets: On the Transition toward Dendritic Freezing

Tillmann Buttersack et al.

JOURNAL OF PHYSICAL CHEMISTRY B (2016)

Article Chemistry, Multidisciplinary

Molecular Insights into Clathrate Hydrate Nucleation at an Ice-Solution Interface

Payman Pirzadeh et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2013)

Article Acoustics

Rapid crystallization from acoustically levitated droplets

Hui-Ling Cao et al.

JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA (2012)

Article Geochemistry & Geophysics

Volume change associated with formation and dissociation of hydrate in sediment

J. Y. Lee et al.

GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS (2010)

Article Instruments & Instrumentation

Acoustic levitator for structure measurements on low temperature liquid droplets

J. K. R. Weber et al.

REVIEW OF SCIENTIFIC INSTRUMENTS (2009)

Article Engineering, Aerospace

Internal Flow of Acoustically Levitated Droplet

Yuji Yamamoto et al.

MICROGRAVITY SCIENCE AND TECHNOLOGY (2008)

Article Thermodynamics

Evaporation of acoustically levitated multi-component liquid droplets

G. Brenn et al.

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER (2007)

Article Engineering, Environmental

The clathrate hydrate process for post and pre-combustion capture of carbon dioxide

Praveen Linga et al.

JOURNAL OF HAZARDOUS MATERIALS (2007)

Article Physics, Applied

Observation of ice nucleation in acoustically levitated water drops -: art. no. 184107

YJ Lü et al.

APPLIED PHYSICS LETTERS (2005)

Article Engineering, Chemical

NMR verification of single droplet freezing models

JP Hindmarsh et al.

AICHE JOURNAL (2005)

Article Chemistry, Physical

Laboratory evidence for surface nucleation of solid polar stratospheric cloud particles

A Tabazadeh et al.

JOURNAL OF PHYSICAL CHEMISTRY A (2002)

Article Thermodynamics

Active control of phase change from supercooled water to ice by ultrasonic vibration 1. Control of freezing temperature

T Inada et al.

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER (2001)