Modelling of particle breakage during drying

M. Mezhericher; A. Levy; I. Borde

doi:10.1016/j.cep.2007.06.018

Modelling of particle breakage during drying

M. Mezhericher
, A. Levy
, I. Borde

Department of Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

65 Scopus citations

Abstract

An advanced theoretical drying model of single wet particle is proposed. The temperature profile in both crust and wet core regions is described by partial differential equations with appropriate boundary conditions. A Stefan-type vapour diffusion through the crust pores and its convection to the drying ambient has been assumed. The results of model validation for of whole milk droplet drying are presented. The reasons of wet particle possible cracking/rupture are analysed for silica drying. It is concluded that the values of thermal stresses in the crust have decisive importance for the silica particle cracking/rapture during drying. Finally, the results of thermal stresses calculation for silica drying under different conditions are presented.

Original language	English
Pages (from-to)	1404-1411
Number of pages	8
Journal	Chemical Engineering and Processing: Process Intensification
Volume	47
Issue number	8
DOIs	https://doi.org/10.1016/j.cep.2007.06.018
State	Published - 1 Jan 2008

Keywords

Cracking/rupture
Crust
Spray drying
Thermal stress
Wet particle

ASJC Scopus subject areas

General Chemistry
General Chemical Engineering
Energy Engineering and Power Technology
Industrial and Manufacturing Engineering

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10.1016/j.cep.2007.06.018

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title = "Modelling of particle breakage during drying",

abstract = "An advanced theoretical drying model of single wet particle is proposed. The temperature profile in both crust and wet core regions is described by partial differential equations with appropriate boundary conditions. A Stefan-type vapour diffusion through the crust pores and its convection to the drying ambient has been assumed. The results of model validation for of whole milk droplet drying are presented. The reasons of wet particle possible cracking/rupture are analysed for silica drying. It is concluded that the values of thermal stresses in the crust have decisive importance for the silica particle cracking/rapture during drying. Finally, the results of thermal stresses calculation for silica drying under different conditions are presented.",

keywords = "Cracking/rupture, Crust, Spray drying, Thermal stress, Wet particle",

author = "M. Mezhericher and A. Levy and I. Borde",

note = "Funding Information: We wish to thank the Israel Ministry of Immigrant Absorption for partial support of this work.",

year = "2008",

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T1 - Modelling of particle breakage during drying

AU - Mezhericher, M.

AU - Levy, A.

AU - Borde, I.

N1 - Funding Information: We wish to thank the Israel Ministry of Immigrant Absorption for partial support of this work.

PY - 2008/1/1

Y1 - 2008/1/1

N2 - An advanced theoretical drying model of single wet particle is proposed. The temperature profile in both crust and wet core regions is described by partial differential equations with appropriate boundary conditions. A Stefan-type vapour diffusion through the crust pores and its convection to the drying ambient has been assumed. The results of model validation for of whole milk droplet drying are presented. The reasons of wet particle possible cracking/rupture are analysed for silica drying. It is concluded that the values of thermal stresses in the crust have decisive importance for the silica particle cracking/rapture during drying. Finally, the results of thermal stresses calculation for silica drying under different conditions are presented.

AB - An advanced theoretical drying model of single wet particle is proposed. The temperature profile in both crust and wet core regions is described by partial differential equations with appropriate boundary conditions. A Stefan-type vapour diffusion through the crust pores and its convection to the drying ambient has been assumed. The results of model validation for of whole milk droplet drying are presented. The reasons of wet particle possible cracking/rupture are analysed for silica drying. It is concluded that the values of thermal stresses in the crust have decisive importance for the silica particle cracking/rapture during drying. Finally, the results of thermal stresses calculation for silica drying under different conditions are presented.

KW - Cracking/rupture

KW - Crust

KW - Spray drying

KW - Thermal stress

KW - Wet particle

UR - https://www.scopus.com/pages/publications/43849085148

U2 - 10.1016/j.cep.2007.06.018

DO - 10.1016/j.cep.2007.06.018

M3 - Article

AN - SCOPUS:43849085148

SN - 0255-2701

VL - 47

SP - 1404

EP - 1411

JO - Chemical Engineering and Processing: Process Intensification

JF - Chemical Engineering and Processing: Process Intensification

IS - 8

ER -

Modelling of particle breakage during drying

Abstract

Keywords

ASJC Scopus subject areas

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