Nonstationary Mass Transfer Near the Surface of a Cylindrical Body

Rudobashta, S. P.; Kosheleva, M. K.; Карташов, Э. М.

doi:10.1007/s10891-015-1316-1

Cited by 6 publications

(3 citation statements)

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“…The Tsimermanis equation, which was derived in [26] based on thermodynamic analysis, was used to describe the sorption capacity of the material of the support. For typical capillary-porous solids, this equation has the following form: (13) where u is the equilibrium moisture content; ϕ is the relative humidity of air; а 0 and k are dimensionless constants, which are called the structural activity of a capillary-porous material and the coefficient of an…”

Section: R R T T Z P B P S Jt B B T Tmentioning

confidence: 99%

“…increment in the bond activity, respectively; u S0 is the maximum hygroscopic content at T = 273 K; and α ST is a constant factor. Based on experimental sorption isotherms for the material of the support, constants in the equation for sorption polytherm (13) were determined using the least-squares method: а 0 = 1.111, k = 5.021, u s0 = 0.3, and α ST = 1.17 × 10 -4 .…”

Section: R R T T Z P B P S Jt B B T Tmentioning

confidence: 99%

“…The authors of [12][13][14] based their studies on the diffusion-filtration model developed by A.V. Luikov [3], which makes it possible to study interrelated heat and mass transfer in a capillary-porous medium.…”

Section: Introductionmentioning

confidence: 99%

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Mathematical Modeling of Heat and Mass Transfer in the Drying of Granules Used as a Support for a Nickel Catalyst

Kosheleva

Мешалкин

Dornyak

2021

Theor Found Chem Eng

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The results of studying the convective drying of cylindrical granules of a support for a nickel catalyst using mathematical modeling techniques have been presented. A mathematical model for intensive heat and mass transfer in a granule has been formulated that makes it possible to choose the efficient regimes of convective drying. The specific feature of the mathematical model is the analytical calculation of local mass transfer coefficients for a liquid taking into account the sorption properties of a material, a permeability coefficient, the local values of the moisture content, and temperature. Comparison of the results of mathematical modeling of heat and mass transfer in granules and the data of a laboratory experiment has shown that they are in satisfactory agreement.

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Section: R R T T Z P B P S Jt B B T Tmentioning

confidence: 99%

Section: R R T T Z P B P S Jt B B T Tmentioning

confidence: 99%