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Colloids --- Electric double layer --- Electrokinetics --- Transport theory --- Electric properties
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Advances in Heat Transfer fills the information gap between regularly scheduled journals and university level textbooks by providing in-depth review articles over a broader scope than in journals or texts. The articles, which serve as a broad review for experts in the field, will also be of great interest to non-specialists who need to keep up-to- date with the results of the latest research. It is essential reading for all mechanical, chemical and industrial engineers working in the field of heat transfer, graduate schools or industry.* Provides an overview of review articles o
Heat --- Energy transfer. --- Energy storage --- Force and energy --- Transport theory --- Heat transfer --- Thermal transfer --- Transmission of heat --- Energy transfer --- Transmission.
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Packed bed columns are largely employed for absorption, desorption, rectification and direct heat transfer processes in chemical and food industry, environmental protection and also processes in thermal power stations like water purification, flue gas heat utilization and SO2 removal.These Separation processes, are estimated to account for 40%-70% of capital and operating costs in process industry. Packed bed columns are widely employed in this area. Their usage also for direct heat transfer between gas and liquid, enlarge their importance. They are the best apparatuses, from thermodynamic
Packed towers. --- Mass transfer. --- Mass transport (Physics) --- Thermodynamics --- Transport theory --- Columns, Packed --- Towers, Packed --- Chemical engineering --- Diffusion --- Equipment and supplies --- Chemistry --- Chemical Engineering
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Das Buch gibt eine Übersicht und Hilfestellung für die mit den Problemen des Apparatebaus befassten Praktiker. Apparate sind elementare Bestandteile verfahrenstechnischer Anlagen. Ihre wichtigsten Elemente wie Umhüllung, Abschluss, Anschluss und Absicherung werden in Form von Diagrammen, Bildern und durchgerechneten Beispielen behandelt.
Chemical engineering. --- Thermodynamics. --- Heat engineering. --- Heat transfer. --- Mass transfer. --- Machinery. --- Industrial Chemistry/Chemical Engineering. --- Engineering Thermodynamics, Heat and Mass Transfer. --- Machinery and Machine Elements. --- Chemistry. --- Transport theory.
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There exist a wide range of applications where a significant fraction of the momentum and energy present in a physical problem is carried by the transport of particles. Depending on the specific application, the particles involved may be photons, neutrons, neutrinos, or charged particles. Regardless of which phenomena is being described, at the heart of each application is the fact that a Boltzmann like transport equation has to be solved. The complexity, and hence expense, involved in solving the transport problem can be understood by realizing that the general solution to the 3D Boltzmann transport equation is in fact really seven dimensional: 3 spatial coordinates, 2 angles, 1 time, and 1 for speed or energy. Low-order approximations to the transport equation are frequently used due in part to physical justification but many in cases, simply because a solution to the full transport problem is too computationally expensive. An example is the diffusion equation, which effectively drops the two angles in phase space by assuming that a linear representation in angle is adequate. Another approximation is the grey approximation, which drops the energy variable by averaging over it. If the grey approximation is applied to the diffusion equation, the expense of solving what amounts to the simplest possible description of transport is roughly equal to the cost of implicit computational fluid dynamics. It is clear therefore, that for those application areas needing some form of transport, fast, accurate and robust transport algorithms can lead to an increase in overall code performance and a decrease in time to solution.
Neutron transport theory --- Photon transport theory --- Radiative transfer --- Transport theory --- Research. --- Boltzmann transport equation --- Transport phenomena --- Mathematical physics --- Particles (Nuclear physics) --- Radiation --- Statistical mechanics --- Transfer, Radiative --- Astrophysics --- Geophysics --- Heat --- Multigroup diffusion (Neutron transport) --- Neutron diffusion theory --- Nuclear fission --- Nuclear fusion --- Nuclear reactors --- Radiation and absorption --- 517.95 --- 519.63 --- 681.3 *G18 --- 519.63 Numerical methods for solution of partial differential equations --- Numerical methods for solution of partial differential equations --- 517.95 Partial differential equations --- Partial differential equations --- 681.3 *G18 Partial differential equations: difference methods; elliptic equations; finite element methods; hyperbolic equations; method of lines; parabolic equations (Numerical analysis) --- Partial differential equations: difference methods; elliptic equations; finite element methods; hyperbolic equations; method of lines; parabolic equations (Numerical analysis) --- Research --- Computer science. --- Computational Science and Engineering. --- Theoretical, Mathematical and Computational Physics. --- Astrophysics and Astroparticles. --- Informatics --- Science --- Computer mathematics. --- Mathematical physics. --- Astrophysics. --- Astronomical physics --- Astronomy --- Cosmic physics --- Physics --- Physical mathematics --- Computer mathematics --- Electronic data processing --- Mathematics
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Thermal management has become a ‘hot’ field in recent years due to a need to obtain high performance levels in many devices used in such diverse areas as space science, mainframe and desktop computers, optoelectronics and even Formula One racing cars! Thermal solutions require not just taking care of very high thermal flux, but also ‘hot spots’, where the flux densities can exceed 200 W/cm2. High thermal conductivity materials play an important role in addressing thermal management issues. This volume provides readers a basic understanding of the thermal conduction mechanisms in these materials and discusses how the thermal conductivity may be related to their crystal structures as well as microstructures developed as a result of their processing history. The techniques for accurate measurement of these properties on large as well as small scales have been reviewed. Detailed information on the thermal conductivity of diverse materials including aluminum nitride (AlN), silicon carbide (SiC), diamond, as well as carbon nanotubes has been presented. The emphasis is on developing basic understanding of the inter-relationships between thermal conductivity and processing such that the readers can conduct their own research in this exciting field of high thermal conductivity materials. Engineers and scientists involved in addressing thermal management issues in a broad spectrum of industries should find this book a valuable resource in their work.
Thermal conductivity. --- Materials --- Thermal properties. --- Thermophysical properties --- Coefficient of conductivity --- Conductivity, Heat --- Conductivity, Thermal --- Heat conductivity --- Heat --- Transport theory --- Conduction --- Measurement --- Surfaces (Physics). --- Condensed Matter Physics. --- Characterization and Evaluation of Materials. --- Physics --- Surface chemistry --- Surfaces (Technology) --- Condensed matter. --- Materials science. --- Material science --- Physical sciences --- Condensed materials --- Condensed media --- Condensed phase --- Materials, Condensed --- Media, Condensed --- Phase, Condensed --- Liquids --- Matter --- Solids
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Mechanical properties and fluid transport in rocks are intimately linked as deformation of a solid rock matrix immediately affects the pore space and permeability. This may result in transient or permanent changes of pore pressures and effective pressures causing rock strength to vary in space and time. Fluid circulation and deformation processes in crustal rocks are coupled, producing significant complexity of mechanical and fluid transport behavior. This often poses severe technical and economic problems for reservoir and geotechnical engineering projects involved in oil and gas production, CO2 sequestration, mining and underground waste disposal. For example, the depletion of hydrocarbon and water reservoirs leading to compaction may have adverse effects on well production. Solution/precipitation processes modify porosity and affect permeability of aquifers and reservoir rocks. Fracture damage from underground excavation will critically influence the long-term stability and performance of waste storage. Part I of this topical volume covers mainly the nucleation and evolution of crack damage in rocks, new or modified techniques to measure rock fracture toughness and a discussion of upscaling techniques relating mechanical and fluid transport behaviour in rocks at different spatial scales. Part II, to be published later in 2006, will include studies investigating the coupling of rock deformation and fluid flow.
Rock deformation. --- Fluid dynamics. --- Transport theory. --- Boltzmann transport equation --- Transport phenomena --- Mathematical physics --- Particles (Nuclear physics) --- Radiation --- Statistical mechanics --- Dynamics --- Fluid mechanics --- Deformation, Rock --- Deformations (Mechanics) --- Geology, Structural --- Geography. --- Hydraulic engineering. --- Earth Sciences, general. --- Hydrogeology. --- Engineering, Hydraulic --- Engineering --- Hydraulics --- Shore protection --- Cosmography --- Earth sciences --- World history --- Earth sciences. --- Geohydrology --- Geology --- Hydrology --- Groundwater --- Geosciences --- Environmental sciences --- Physical sciences
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Mechanical properties and fluid transport in rocks are intimately linked as deformation of a solid rock matrix immediately affects the pore space and permeability. The coupling of fluid circulation and deformation processes in crustal rocks results in significant complexity of the mechanical and fluid transport behavior. This often poses severe technical and economic problems for reservoir and geotechnical engineering projects involved in oil and gas production, CO2 sequestration, mining and underground waste disposal. The volume results from the 5th Euroconference on Rock Physics and Geomechanics, which was held in Potsdam, Germany in September 2004. Part I of the topical volume mainly contains contributions investigating the nucleation and evolution of crack damage in rocks, new or modified techniques to measure rock fracture toughness and a discussion of upscaling techniques relating mechanical and fluid transport behavior in rocks at different spatial scales. Part II contains contributions discussing fluid flow and transport in rocks as observed on the laboratory scale and in boreholes. The evolution of rock damage pertinent to the stability of underground excavations is studied and scaling relations of elastic properties and seismic events are discussed. .
Rock deformation. --- Fluid dynamics. --- Transport theory. --- Boltzmann transport equation --- Transport phenomena --- Mathematical physics --- Particles (Nuclear physics) --- Radiation --- Statistical mechanics --- Dynamics --- Fluid mechanics --- Deformation, Rock --- Deformations (Mechanics) --- Geology, Structural --- Hydraulic engineering. --- Hydrogeology. --- Engineering, Hydraulic --- Engineering --- Hydraulics --- Shore protection --- Geohydrology --- Geology --- Hydrology --- Groundwater
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This book presents a compilation of state-of-the art studies on gas and vapor transport processes in porous and fractured media. A broad set of models and processes is presented, including advection/diffusion, the Dusty Gas Model, enhanced vapor diffusion, phase change, coupled processes, solid/vapor sorption, and vapor-pressure lowering. Numerous applications are also presented that illustrate these processes and models in current problems facing the scientific community. This book fills a gap in the general area of transport in porous and fractured media - an area that has historically been dominated by studies of liquid-phase flow and transport. This book identifies gas and vapor transport processes that may be important or dominant in various applications, and it exploits recent advances in computational modeling and experimental methods to present studies that distinguish the relative importance of various mechanisms of transport in complex media. Audience: This book offers essential reading to researchers and graduate students in soil science, hydrology, as well as civil engineering, and mechanical engineering. Also employees at government institutions, national laboratories, practicing environmental engineers and engineering consultants can find valuable information in this book. Finally it can serve as a textbook to students with a basic background in thermodynamics and fluid mechanics.
Gas dynamics. --- Porous materials. --- Vapors. --- Vapours --- Gases --- Porous media --- Materials --- Porosity --- Gasdynamics --- Fluid dynamics --- Thermodynamics --- Engineering. --- Engineering Thermodynamics, Heat and Mass Transfer. --- Geotechnical Engineering & Applied Earth Sciences. --- Construction --- Industrial arts --- Technology --- Thermodynamics. --- Heat engineering. --- Heat transfer. --- Mass transfer. --- Geotechnical engineering. --- Heat --- Mechanical engineering --- Chemistry, Physical and theoretical --- Dynamics --- Mechanics --- Physics --- Heat-engines --- Quantum theory --- Engineering, Geotechnical --- Geotechnics --- Geotechnology --- Engineering geology --- Mass transport (Physics) --- Transport theory --- Heat transfer --- Thermal transfer --- Transmission of heat --- Energy transfer
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