Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 119 for “"Hydrates"”.
-
Formation and characterization of pure methane hydrates and methane hydrates in unconsolidated and consolidated sediments
Includes bibliographical references.
-
Salt hydrates for thermochemical energy storage
… in air are hydrated and generate heat. Salt hydrates have often been chosen for space heating application due to their high energy density, suitable dehydration temperatures and water vapour being a safe and cheap reaction partner. However, this method of thermal energy storage is yet to be …
-
Assessing Salt Hydrates For Thermochemical Heat Batteries
Contains fulltext : 299116.pdf (Publisher’s version ) (Open Access)
-
Bond Strength Between Cement Hydrates and Steel
Made available in DSpace on 2014-12-14T15:23:57Z (GMT). No. of bitstreams: 1 7606947.pdf: 7248314 bytes, checksum: 5e1be8715f05a2de771842dee45ce8c5 (MD5) Previous issue date: 1975
-
Modeling of gas hydrates from first principles
… surface (PES) accurately for use in modeling gas hydrates. Electron correlation was found to be treated accurately by the second-order Moller-Plesset method (MP2). However, a large basis set, cc-pVQZ, was found to be necessary in order to compute the binding energies to within 0.1 kcal/mol of the …
-
Measurements of clathrate hydrates properties via Raman spectroscopy
Includes bibliographical references (pages 90-99).
-
Carbon dioxide hydrates for carbon capture, utilization, and storage
… K) in the same microfluidic device. Finally, gas hydrates were evaluated for their potential to separate a syngas mixture stream. A model methane and nitrogen (carbon monoxide substitute) was first evaluated, highlighting the modest separation ability of hydrates as they were able to take a 50/50 …
-
Probing Nucleation Mechanisms of Gas Hydrates via Molecular Simulations
Gas hydrates are ice-like solids where guest species can be encapsulated in water cages. Gas hydrates have received considerable attention because of the vast natural methane hydrates and various promising hydrate-based technologies. Relevant to the applications, a fundamental molecular-level …
-
Vapor-solid equilibrium ratios for structure I natural gas hydrates
Includes bibliographical references.
-
Thermodynamic Formation Conditions for Propane Hydrates in Equilibrium with Liquid Water
… based separation processes involving type II hydrates. Experimental dissociation conditions were measured using the phase boundary dissociation method, which has the advantages of reduced experimental time and generation of more equilibrium dissociation data when compared to other hydrate …
-
Dynamics of confined chemical gardens and implications for submarine methane hydrates
… theoretical analogue of the spreading of methane hydrates under the seabed. We discuss how this methane venting leads to the formation of marine authigenic carbonate rocks, and for confirmation, we analyse two field samples from the Gulf of Cadiz for composition and mineralogy of the precipitates. …
-
Multiphase flow modeling and deposition of hydrates in oil and gas pipelines
… the two most important pieces of flow assurance: hydrates and multiphase flow. A simple hydrodynamic slug flow model, based on fundamental multiphase flow concepts, coupled with a transient hydrate formation model, was used to study the effect of hydrates in a gas/water system undergoing fluid …
-
Stability of Methane-Ethane-Propane Mixed Gas Hydrates under Deep Water Conditions
Methane hydrates are globally distributed in sediments along the continental margins and potentially contain more energy than all fossil fuel reserves. However, methane is also a potential greenhouse gas which could play a major role in global climate change. Understanding the stability of gas …
-
Experimental determination of the thermodynamic parameters of structure II hydrates using propane
Includes bibliographical references.
-
Multiphase flow modeling and deposition of hydrates in oil and gas pipelines
… the two most important pieces of flow assurance: hydrates and multiphase flow. A simple hydrodynamic slug flow model, based on fundamental multiphase flow concepts, coupled with a transient hydrate formation model, was used to study the effect of hydrates in a gas/water system undergoing fluid …
-
Probing hydrate stability and structural characterization of both natural and synthetic clathrate hydrates
Includes bibliographical references (pages 275-287).
-
Heat capacity and heat of dissociation of methane hydrates: a new approach, The
Includes bibliographical references (pages 124-127).
-
Predicting hydrates plugging risk in subsea gas pipeline: CFD, analytical and linear regression modelling.
This study addresses critical limitations in managing hydrate plugging risk for gas pipelines. The main challenges lie in accurately predicting hydrate deposition rates and associated pressure drops. To overcome these limitations, the study developed and validated a 3D computational model using …
Page 1 of 6