Effects Of Non-Darcy Flow And Pore Proximity On Gas Condensate Production From Nanopore Unconventional Resources,
2014
University of Oklahoma, Mewbourne School of Petroleum and Geological Engineering
Effects Of Non-Darcy Flow And Pore Proximity On Gas Condensate Production From Nanopore Unconventional Resources, Alireza Sanaei, Ahmad Jamili, Jeffrey Callard
5th International Conference on Porous Media and Their Applications in Science, Engineering and Industry
Transport properties and mechanisms as well as phase behavior under nanoscale confinement exhibit significant deviations from their bulk behavior. Phase behavior due to the significant effect of molecule-wall interactions as well as molecule-molecule interactions changes in nanopores. Additionally, in nanopores, when the mean free path of molecules is in the order of the pore radius, non-Darcy flow occurs. This phenomenon causes an increase in effective permeability of the flowing fluid. In this study, we focus on analyzing and determining the effect of phase behavior and transport properties change due to pore proximity on production from a shale gas condensate reservoir. …
Performance Comparison Of The Finite-Difference, Practical-Finite-Analytic, Differential-Quadrature, And Differential-Cubature Methods For Solving Porous Media Immiscible Fluids Transport,
2014
The University of Oklahoma
Performance Comparison Of The Finite-Difference, Practical-Finite-Analytic, Differential-Quadrature, And Differential-Cubature Methods For Solving Porous Media Immiscible Fluids Transport, Faruk Civan
5th International Conference on Porous Media and Their Applications in Science, Engineering and Industry
Reviews and comparisons of the finite-difference, differential-quadrature, differential-cubature, finite-analytic, and practical-finite-analytic methods are presented. Numerical solution of immiscible fluids transport in porous media are illustrated. The cubature and practical finite-analytic methods are shown to have apparent advantages over the other methods because the numerical solution schemes are derived directly from the specific problems of interest.
A Simplified Model For Transport In Aquifers,
2014
Institute of Natural and Mathematical Sciences, Massey University, Auckland
A Simplified Model For Transport In Aquifers, Robert Mckibbin, Amjad Ali, Winston Sweatman
5th International Conference on Porous Media and Their Applications in Science, Engineering and Industry
Chemicals that are dissolved in groundwater flow along with the slow-moving water as it makes its way through the complex pores of the aquifer; during this process they are dispersed in different directions. The rate of dispersion depends on the porous structure and the fluid speed. Many groundwater aquifers have a natural layered structure; here this is used to advantage by discretizing them into "almost horizontal" layers, where each may have different matrix properties such as thickness, permeability, dispersivity, porosity, etc. The mean dynamic pressure (or mean hydraulic head) may be assumed constant vertically at each horizontal point if it …
Cmas Deposition Within The Turbine Of A Small Jet Engine And Effects On Tbc Spallation,
2014
Department of Materials Science, University of Cambridge
Cmas Deposition Within The Turbine Of A Small Jet Engine And Effects On Tbc Spallation, Tw Clyne
Thermal Barrier Coatings IV
No abstract provided.
Yttrium Oxide A Candidate Material For Environmental And Thermal Barrier Coatings,
2014
German Aerospace Center (DLR), Institute of Materials Research Cologne, Germany
Yttrium Oxide A Candidate Material For Environmental And Thermal Barrier Coatings, Peter Mechnich, Wolfgang Braue, Nadine K. Eils, Stefan Hackemann, Ravisankar Naraparaju
Thermal Barrier Coatings IV
No abstract provided.
Examination Of Cmas-Induced Eb-Pvd Tbc Failure,
2014
Honeywell Aerospace, USA
Examination Of Cmas-Induced Eb-Pvd Tbc Failure, Vladimir Tolpygo
Thermal Barrier Coatings IV
No abstract provided.
Development Of A Naturalistic Test Media For Dust Ingestion Cmas Testing Of Gas Turbine Engines,
2014
University of Dayton Research Institute
Development Of A Naturalistic Test Media For Dust Ingestion Cmas Testing Of Gas Turbine Engines, Andrew W. Phelps, Lynne Pfledderer
Thermal Barrier Coatings IV
No abstract provided.
A Thermodynamic Database For Simulation Of Cmas And Tbc Interactions,
2014
Thermo-Calc Software AB
A Thermodynamic Database For Simulation Of Cmas And Tbc Interactions, Lina Kjellqvist, Johan Brattberg, Ake Jansson, Huahai Mao
Thermal Barrier Coatings IV
A thermodynamic database has been developed for calculating thermochemical interaction of thermal barrier coatings, namely 7YSZ (yttria partially stabilized zirconia), with CaO-MgO-Al2O3-SiO2 (CMAS) deposits. CaO-MgO-Al2O3-SiO2-Y2O3-ZrO2 is thus the core system for understanding and modeling of processes occurring between CMAS and TBC. A good thermodynamic description of all phases in the system is essential in modeling related to materials design and process optimization. An efficient technique used to obtain a self-consistent thermodynamic database is called the CALPHAD method [1], where the Gibbs energy of each phase is described with a mathematical model. The Gibbs energy of the total system is then …
Tbc Lifetime Under Thermal Gradient Cyclic Testing With Simultaneous Cmas Attack: Towards Prediction Of Advanced Tbc Performance,
2014
Forschungszentrum Jülich GmbH
Tbc Lifetime Under Thermal Gradient Cyclic Testing With Simultaneous Cmas Attack: Towards Prediction Of Advanced Tbc Performance, Daniel Emil Mack, Doris Sebold, Michael Müller, Robert Vaseen, Maria Ophelia Jarligo, Tanja Wobst
Thermal Barrier Coatings IV
No abstract provided.
Aps Tbc Life Prediction - Impact Of Manufacturing Variations,
2014
Siemens Corporate Technology,Munich, Germany
Aps Tbc Life Prediction - Impact Of Manufacturing Variations, Stefan Lampenscherf, Ramesh Subramanian
Thermal Barrier Coatings IV
No abstract provided.
Probabilistic Lifetime Prediction Of Tbc Coated Parts Considering Design, Operation And Manufacturing + Thermal Barrier Coatings Ageing Mechanisms In Land-Based Gas Turbines,
2014
ALSTOM (Switzerland) Ltd
Probabilistic Lifetime Prediction Of Tbc Coated Parts Considering Design, Operation And Manufacturing + Thermal Barrier Coatings Ageing Mechanisms In Land-Based Gas Turbines, Hans Peter Bossmann, Gregoire Witz
Thermal Barrier Coatings IV
A lifing model has been developed based on lab testing to describe the time-temperature-dependence of TBC spallation. An extensive parameter study, using serial parts and coating processes, was done to investigate the affect of manufacturing scatter on TBC life as well as on thermal loading. The impacts of several parameters have been quantified. The transfer to part level has to consider the overall boundary conditions, i.e. increased TBC thickness will reduce on one hand the bondcoat temperature and the risk of spallation, but on the other hand, the increased thickness will increase the stresses within the TBC and the risk …
Attack Of Thermal Barrier Coatings By Molten Silicate Deposits (Sand, Ash) And Its Mitigation,
2014
School of Engineering, Brown University
Attack Of Thermal Barrier Coatings By Molten Silicate Deposits (Sand, Ash) And Its Mitigation, Nitin P. Padture
Thermal Barrier Coatings IV
No abstract provided.
Studies On Permeability Properties And Particle Capture Efficiencies Of Porous Sic Ceramics Processed By Oxide Bonding Technique,
2014
Central Glass and Ceramic Research Institute
Studies On Permeability Properties And Particle Capture Efficiencies Of Porous Sic Ceramics Processed By Oxide Bonding Technique, Atanu Dey, Nijhuma Kayal, Omprakash Chakrabarti, Rafael Caldato, Caio Andre, Murilo Innocentini, Vadila Guerra
5th International Conference on Porous Media and Their Applications in Science, Engineering and Industry
Porous SiC ceramics bonded with mullite (MBS of fractional porosity (e) of 0.29-0.56, average pore size (dpore) of 5-11 μm, flexural strength (σ) of 9-34 MPa and elastic modulus (E) of 7-28GPa) and cordierite (CBS with e of 0.33-0.72, dpore of 6-50 μm, σ of 5-54 MPa and E of 6-42 GPa) were prepared by heating in air at 1350-1500°C compacts of desired amounts of SiC, Al2O3 and MgO powders and petroleum coke dust as the pore former. Air permeation behavior of well-characterized samples was studied with fluid superficial velocity (vs) from 0.08 to 1.0 m s-1and at RT to …
Fractional Diffusion Model For Transport Through Porous Media,
2014
King Fahd University of Petroleum and Minerals
Fractional Diffusion Model For Transport Through Porous Media, Iftikhar Ali, Nadeen Malik, Bilal Chanane
5th International Conference on Porous Media and Their Applications in Science, Engineering and Industry
We model the transport of fluid through porous media in terms of fractional diffusion equation (FDE) for the pressure (,)pxt. Potential application could be to shale gas recovery in tight porous media. Specifically, we pose the time FDE in a finite domain of length L.
Solubility Of Oxides From Zro2-Y2o3 And Zro2-Nd2o3 Systems In A Molten Cas. Selection Of A Thermal Barrier Composition Resistant To Cas Infiltration,
2014
ONERA/DMSM
Solubility Of Oxides From Zro2-Y2o3 And Zro2-Nd2o3 Systems In A Molten Cas. Selection Of A Thermal Barrier Composition Resistant To Cas Infiltration, Marie-Helene Vidal-Setif, Catherine Rio, Odile Lavigne, Nezha Chellah, Michel Vilasi, Cristophe Rapin, Carine Petitjean, Pierre Jean Panteix
Thermal Barrier Coatings IV
No abstract provided.
Cmas Degradation And Implications For Coating Design,
2014
Materials Department, University of California
Cmas Degradation And Implications For Coating Design, Arlos Levi
Thermal Barrier Coatings IV
No abstract provided.
Effect Of Temperature Dependent Viscosity On Natural Convective Boundary Layer Flow Over A Horizontal Plate Embedded In A Nanofluid Saturated Porous Medium,
2014
University of Delhi
Effect Of Temperature Dependent Viscosity On Natural Convective Boundary Layer Flow Over A Horizontal Plate Embedded In A Nanofluid Saturated Porous Medium, Shoba Bagai, Chandrashekhar Nishad
5th International Conference on Porous Media and Their Applications in Science, Engineering and Industry
The effect of temperature dependent viscosity on natural convective boundary-layer flow of a nano-fluid over an isothermal horizontal plate is investigated numerically. The viscosity of the fluid is assumed to have an exponentially decaying dependence on temperature ν=ν0e−b(T−T∞). A similarity analysis is presented for field equations embodying conservation of total mass, momentum, thermal energy and nano-particles. The analysis shows that velocity, temperature and nano-particle volume fraction profiles in the respective boundary layers depend on the viscosity parameter γ besides the pertinent parameters such as buoyancy ratio Nr, Brownian motion Nb, thermophoresis Nt and Lewis number Le. From physical considerations one …
Miscible Density Driven Convective Mass Transfer Process Analysis Based On Entransy Dissipation Theory,
2014
Tsinghua University
Miscible Density Driven Convective Mass Transfer Process Analysis Based On Entransy Dissipation Theory, Rong Li, Ruina Xu, Peixue Jiang, Huihai Liu, Jiannan Chen
5th International Conference on Porous Media and Their Applications in Science, Engineering and Industry
Density driven convective mass transfer process in porous media is one of the most universal phenomena in underground aquifer. In this study, an original model defining Nu (or Sh) number for miscible mass transfer system was derived, based on basic concept of integrated entransy dissipation rate. Numerical simulation results of density driven convective mass transfer process in a closed Hele-Shaw cell and porous media are analyzed. In the process of dilute brine-water mass transfer system in Hele-Shaw cell, three different stages were observed. Meanwhile, time dependent entransy variation and Nu number using our definition also show three different steps in …
Experimental Analysis Of Air Vortex Impingement Through Porous Screens,
2014
University of Texas at Dallas
Experimental Analysis Of Air Vortex Impingement Through Porous Screens, Xudong An, Howard Fultz, Fatemeh Hassanipour
5th International Conference on Porous Media and Their Applications in Science, Engineering and Industry
This paper presents the experimental analysis of air flow vortex propagation through porous screens. This study is conducted by a new and unique experimental setup for ve- locity measurements and visualization of air vortex interac- tion with porous screen. A custom-made, high-precision vortex generator provides a variety of velocity profiles for vortex generation with an unprecedented level of precision. The flow fields are captured with the use of a fog gener- ator and a high-speed CCD camera. The porous screens are constructed out of acrylic rods with various orientations, thickness, and porosities from rod separation. The results presented in this …
Thermohydraulics Of Porous Heat Exchangers: Full Or Partial Blockage?,
2014
University of Queensland
Thermohydraulics Of Porous Heat Exchangers: Full Or Partial Blockage?, Kamel Hooman
5th International Conference on Porous Media and Their Applications in Science, Engineering and Industry
No abstract provided.
