Mass transfer
Top PDF Mass transfer:
TítuloEnhancement of oxygen transfer in bioprocesses by the use of an organic phase: effect of silicone oil on volumetric mass transfer coefficient of oxygen (kLa)
... oxygen mass transfer coefficient could represent a limiting step for biotechnological processes strongly depending on oxygen ...oxygen transfer rate. Future investigations devoted to oxygen ...
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Effect of different building materials on conjugate heat and mass transfer
... by mass transfer (Dufour effect) and the mass flux produced by the energy transfer (Soret effect) are not ...of mass, momentum, energy and species presented ...
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Mass transfer during vacuum frying of eggplant slices (Solanum melongena L )
... the mass transfer and oil uptake parameters during vacuum frying of eggplant ...moisture transfer coefficients was determined through mass diffusion differential ...
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A systematic comparison of two empirical gas liquid mass transfer determination methodologies to characterize methane biodegradation in stirred tank bioreactors
... of specialized microorganisms, have been consistently proven as robust and efficient methods for the treatment of malodorous and industrial volatile organic compounds, exhibiting lower operating costs and environmental ...
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TF 2241 Heat And Mass Transfer Mechanical Engineering Handbook pdf
... heat transfer and fluid mechanics, and also with mass transfer when more than a single species is ...energy, mass conservation, and state equations, which need to be solved ...
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Simulating gas-liquid mass transfer in a spin filter bioreactor
... Figure 4 shows the Sauter mean diameter contours of the Spin Filter bioreactor operated at different impeller speeds: (a) 70 rpm, (b) 140 rpm and (c) 210 rpm. Interestingly, lowest values of 5e-4 m were found when Spin ...
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Mathematical simulation of heat and mass transfer during controlled depressurization of supercritical CO2 in extraction vessels
... heat transfer in the fluid; ii) one hundred differential equation to represent the heat transfer in the solid phase of the packed bed; iii) one equation to represent the mass transfer between ...
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TítuloCharacterization and performance evaluation of a two phase partitioning bioreactor for volatiles organic compounds treatment in off gas
... improve transfer and solubility of hydrophobic pollutants during biological ...toluene mass transfer rate by a factor of 1,1 using a dispersion containing 10% (v/v) FC40 solvent and a twofold oxygen ...
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Evidence for very nearby hidden white dwarfs
... We report the discovery of a tertiary component to the prominent and nearby (d = 14 pc) visual binary α Fornacis. The new invisible component is part of a 4-d short-period Ba-Bb subsystem, whose K-type α For Ba primary ...
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Sonophotocatalytic mineralization of Norflurazon in aqueous environment
... The extended irradiation of Nor fl urazon was carried out for 5 h to evaluate the photocatalytic, sonocatalytic and sonophotocata- lytic mineralization ef fi ciency of Au e ZnO at its optimized concen- trations (Fig. 8). ...
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Numerical simulation on supercritical CO2 fluid dynamics in a hollow fiber membrane contactor
... Pabby and Sastre [30] reported that a particularly interesting application of membrane contactors is extraction with dense gases (i.e., near critical or SCFs). Like liquids, dense gases offer the high solubility of many ...
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Drying process intensification by using freezing pretreatments and ultrasound application at high and low temperature
... Ultrasound application in a drying system may overcome some of the limitations of convective drying by increasing the drying rate. Mainly at low temperature (less than 50 °C) (García- Pérez et al. 2006) and at low air ...
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Simulation of the supercritical CO2 extraction from natural matrices in packed bed columns: User-friendly simulator tool using Excel
... with mass transfer ...different mass transfer control are expected (Figure 2-b) and the effect of temperature, pressure, volumetric flow and particle diameter can be ...
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Modeling oxygen dissolution during pulse oxygen additions under oenological conditions
... uptake (Merchuk, 1977; Ruthiya et al., 2003; Garcia-Ochoa and Gomez, 2009). When absorption with chemical reaction occurs in a liquid, the concentration profiles are disturbed by the chemical reaction causing an increase ...
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Effects of variable viscosity and thermal conductivity on MHD flow past a vertical plate
... [6] Kafoussius, N. G. and Williams, E.W., The effect of temperature depen- dent viscosity on free convective laminar boundary layer flow past a vertical isothermal flat plate, Acta Mechanica, Vol. 110, No.1-4, (1995), pp ...
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TítuloBiological conversion of carbon monoxide: rich syngas or waste gases to bioethanol
... high mass transfer ...gas–liquid mass transfer in suspended growth ...for mass transfer is inversely proportional to the bubble diameter under mass transfer limited ...
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Post common envelope binaries from SDSS XI The white dwarf mass distributions of CVs and pre CVs
... the mass-ratio limit for sta- ble mass transfer requires the WD masses to be relatively high (M wd > M 2 /q crit ) in order to start stable mass transfer, or ...
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Multi objective optimization of the thermal and hydraulic design of a heat exchanger of the type shell and tubes
... In this paper, the entransy dissipation theory is used for a multi-objective optimization, instead of the principle of minimum entropy generation. A set of solutions was obtained, the solutions found matches with the ...
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MECHANISM OF TRANSFER OF MASS IN THE PROCESS OF DRYING OF A COLLOIDAL SUBSTANCE
... main mass of the current of ...of transfer of mass, of the exposed surface to the hot air in the drying and the difference between the temperatures or the humidities of the currents of air and the ...
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La Evolución de los Mass Media
... Un ejemplo de mass media con el podríamos trabajar es la telefonía móvil, también conocida como telefonía celular. Tiene varios orígenes, dependiendo de cómo se considere el principio básico de transmisión. Según ...
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