Determination of effective diffusivity and convective mass transfer coefficient for cylindrical solids via analytical solution and inverse method: Application to the drying of rough rice

In this article, a methodology is used for the simultaneous determination of the effective diffusivity and the convective mass transfer coefficient in porous solids, which can be considered as an infinite cylinder during drying. Two models are used for optimization and drying simulation: model 1 (constant volume and diffusivity, with equilibrium boundary condition), and model 2 (constant volume and diffusivity with convective boundary condition). Optimization algorithms based on the inverse method were coupled to the analytical solutions, and these solutions can be adjusted to experimental data of the drying kinetics. An application of optimization methodology was made to describe the drying kinetics of whole bananas, using experimental data available in the literature. The statistical indicators enable to affirm that the solution of diffusion equation with convective boundary condition generates results superior than those with the equilibrium boundary condition.

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Determination of the convective mass transfer coefficient in the dissolution of NaCl particles in non-Newtonian fluids

Journal of Natural Gas Science and Engineering ◽

10.1016/j.jngse.2017.03.014 ◽

2017 ◽

Vol 45 ◽

pp. 118-126 ◽

Cited By ~ 5

Author(s):

João Pedro Chalfun Haouche Meneses ◽

Luís Américo Calcada ◽

Cláudia Míriam Scheid ◽

Sérgio da Cruz Magalhães

Keyword(s):

Mass Transfer ◽

Transfer Coefficient ◽

Mass Transfer Coefficient ◽

Newtonian Fluids ◽

Convective Mass Transfer

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Determination of Quantitative Sodium Mass Transfer Coefficient During Osmotic Processing of Potatoes

Journal of Food Processing and Preservation ◽

10.1111/jfpp.12676 ◽

2015 ◽

Vol 40 (5) ◽

pp. 963-968 ◽

Cited By ~ 1

Author(s):

Troy Hinkley ◽

Janam Pandya ◽

Amanda J. Kinchla ◽

Eric A. Decker

Keyword(s):

Mass Transfer ◽

Transfer Coefficient ◽

Mass Transfer Coefficient

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Determination of Filtration Properties and Mass Transfer Coefficient for Fractured Porous Media by Laboratory Test Data

Springer Proceedings in Earth and Environmental Sciences - Trigger Effects in Geosystems ◽

10.1007/978-3-030-31970-0_28 ◽

2019 ◽

pp. 257-267

Author(s):

Larisa Nazarova ◽

Leonid Nazarov

Keyword(s):

Mass Transfer ◽

Porous Media ◽

Laboratory Test ◽

Transfer Coefficient ◽

Mass Transfer Coefficient ◽

Test Data ◽

Fractured Porous Media ◽

Filtration Properties

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Determination of the ozone volumetric mass transfer coefficient in bubble column with two-fluid nozzle gas distributor

Hemijska industrija ◽

10.2298/hemind140716075d ◽

2015 ◽

Vol 69 (5) ◽

pp. 553-559 ◽

Cited By ~ 1

Author(s):

Milica Djekovic-Sevic ◽

Nevenka Boskovic-Vragolovic ◽

Ljiljana Takic ◽

Radmila Garic-Grulovic ◽

Srdjan Pejanovic

Keyword(s):

Mass Transfer ◽

Transfer Coefficient ◽

Mass Transfer Coefficient ◽

Bubble Column ◽

Operating Conditions ◽

Volumetric Mass Transfer Coefficient ◽

Gas Distributor ◽

Liquid Mass Transfer ◽

Two Fluid

Experimental investigation of gas-liquid mass transfer of ozone in water, in bubble column with two-fluid nozzle gas distributor (BKDM), under different operating conditions, are presented in this work. The main objective was to determine the ozone volumetric mass transfer coefficient, kL a, in calm uniform section of the column, under different values of gas and liquid flow rates. Obtained values of these coefficients were compared with the values in countercurrent bubble column. The critical liquid flowrate, when gas hold up reaches its maximum, was experimentally determined. It was shown that the maximum value of the ozone volumetric mass transfer coefficient is obtained just when liquid flowrate is at its critical value.

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