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Mass transfer

Endoreversible four-mass-reservoir chemical pump with diffusive mass transfer law

Endoreversible four-mass-reservoir chemical pump with diffusive mass transfer law

... the mass transfer obeys diffusive law, is analyzed and optimized in this ...as mass exchangers, and electrochemical, photochemical, and solid-state devices, as well as fuel pumps for solar-energy ...

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Magnetopause energy and mass transfer: results from a global MHD simulation

Magnetopause energy and mass transfer: results from a global MHD simulation

... and mass transfer may still correspond to reality at the magnetopause: Energy transfer takes place because open field lines moving tailward form an angle between the magnetosheath velocity field, ...

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Heat and mass transfer coefficients and modeling of infrared drying of banana slices

Heat and mass transfer coefficients and modeling of infrared drying of banana slices

... and mass transfer coefficients in the present work is due to the fact that drying is not solely convective, but a mix of radiation and convection proces- ses (Corrêa et ...of mass transfer ...

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Modeling Heat and Mass Transfer from Fabric-Covered Cylinders

Modeling Heat and Mass Transfer from Fabric-Covered Cylinders

... The bare cylinder simulation provides an opportunity to compare the computational simulations with experimental and theoretical values for heat and mass transfer from a cylinder in cross-flow conditions. ...

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Infl uence of mass transfer on bubble plume hydrodynamics

Infl uence of mass transfer on bubble plume hydrodynamics

... of mass transfer using such integral approach but considering top hat distributions of plume properties and neglecting the effect of ...on mass transfer, Einarsrud and Brevik (2009) assumed ...

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Natural Convection Heat and Mass Transfer Flow with Hall Current, Rotation, Radiation and Heat Absorption Past an Accelerated Moving Vertical Plate with Ramped Temperature

Natural Convection Heat and Mass Transfer Flow with Hall Current, Rotation, Radiation and Heat Absorption Past an Accelerated Moving Vertical Plate with Ramped Temperature

... heat transfer characteristics of several physical problems of practical interest ...and mass transfer characteristics of the fluid flow problems under ...

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A MASS TRANSFER MODEL APPLIED TO THE SUPERCRITICAL EXTRACTION WITH CO

A MASS TRANSFER MODEL APPLIED TO THE SUPERCRITICAL EXTRACTION WITH CO

... the mass transfer kinetics and the content of curcuminoids in the extracts during the course of ...spectrophotometry. Mass transfer within the solid matrix was described by a linear ...

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Modelling of mass transfer kinetic in osmotic dehydration of kiwifruit

Modelling of mass transfer kinetic in osmotic dehydration of kiwifruit

... was used for modelling kiwifruit osmotic dehydration. An artificial neural network is a set of computing elements (neurons) that are functional- ly similar to biological neurons. This set could discover and show the ...

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Application of a Fuzzy Neural Network for Modeling of the Mass-Transfer Coefficient in a Stirred Tank Bioreactor

Application of a Fuzzy Neural Network for Modeling of the Mass-Transfer Coefficient in a Stirred Tank Bioreactor

... Abstract: A type of a fuzzy neural network for mathematical modeling of the volumetric mass-transfer coefficient is presented in the paper. Performed investigations show that the presented fuzzy neural ...

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RESEARCH OF THE MASS TRANSFER AT MEMBRANE CLEANING OF BIOGAZ

RESEARCH OF THE MASS TRANSFER AT MEMBRANE CLEANING OF BIOGAZ

... Porous membranes, in which the regime of molecular diffusion does not seem to be used in any separation processes, although we cannot exclude such possibilities for any specific cases. Study of the processes of molecular ...

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EVALUATION OF MASS TRANSFER IN A NOVEL HOLLOW FIBER MODULE DESIGN USING AN ELECTROCHEMICAL TECHNIQUE

EVALUATION OF MASS TRANSFER IN A NOVEL HOLLOW FIBER MODULE DESIGN USING AN ELECTROCHEMICAL TECHNIQUE

... New designs of modules were attempted with the aim of reducing the concentration polarization in order to improve the hydrodynamics inside the module, trying to induce secondary flows and Dean vortex turbulence promoters ...

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Mass transfer effects in hygroscopic measurements of aerosol particles

Mass transfer effects in hygroscopic measurements of aerosol particles

... Mass transfer effects may also complicate measurements in other types of aerosol flow-through systems that have resi- dence times on the order of seconds for humidification or de- humidification ...

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Mestrado integrado em Engenharia Química e Bioquímica

Mestrado integrado em Engenharia Química e Bioquímica

... As a result of these two contributions, nanoparticles remain stable over a wide range of pH (2-12), decreasing the ζ-potential value with pH increase (from -11 to -40 mV), as shown in Figure 2.6, while in Olle et al. ...

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J. Braz. Soc. Mech. Sci. & Eng.  vol.33 número3

J. Braz. Soc. Mech. Sci. & Eng. vol.33 número3

... of the model and (iii) the analysis of the behavior of the axial dispersion coefficient, liquid-solid mass transfer coefficient and wetting efficiency by new forms of empirical correlations, Eqs. (42), (43) ...

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High Temperature Convective Drying of a Packed Bed with Humid Air at Different Humidities

High Temperature Convective Drying of a Packed Bed with Humid Air at Different Humidities

... The mass transfer is introduced by drying kinetics deduced from the particle ...of mass flux and moisture content, deduced from the numerical resolution of the single particle model, were ...

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J. Braz. Soc. Mech. Sci. & Eng.  vol.34 número4

J. Braz. Soc. Mech. Sci. & Eng. vol.34 número4

... and mass fluxes was considered by Cheng ...heat transfer from a vertical flat plate embedded in a thermally stratified non-Newtonian fluid saturated non-Darcy porous medium is analyzed by Kairi and Murthy ...

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Direct Evaporatrive Coolers of Gases and Liquids with Lowered Limit of Cooling

Direct Evaporatrive Coolers of Gases and Liquids with Lowered Limit of Cooling

... [2] Doroshenko A.V.Kompaktnaia teplomassob- mennaia apparatura dlia holodilinoi tehniki (teoria, raschet, injenernaia praktika). [The compact heat and mass transfer equipment for refrigeration (theory, ...

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J. Braz. Soc. Mech. Sci. & Eng.  vol.28 número4

J. Braz. Soc. Mech. Sci. & Eng. vol.28 número4

... An examination of the actual temperatures of the cycle revealed that the absorption temperature is high, and leads to a poor performance of the absorption process. This suggests that the system performance could be ...

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Transesterification of Animal Fat to Biodiesel Over Calcined Solid Sodium Silicate Catalyst

Transesterification of Animal Fat to Biodiesel Over Calcined Solid Sodium Silicate Catalyst

... The production of biodiesel from animal fat is feasible over sodium silicate catalyst. Biodiesel yield increased with an increase in reaction time, reaction temperature and amount of catalyst. The results agreed well ...

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Glucose Isomerization in Simulated Moving Bed Reactor by

Glucose Isomerization in Simulated Moving Bed Reactor by

... Studies were carried out on the production of high-fructose syrup by Simulated Moving Bed (SMB) technology. A mathematical model and numerical methodology were used to predict the behavior and performance of the ...

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