Hydrotextural Description of an Unsaturated Humid Granular Media: Application for Kneading, Packing and Drying Operations

The kneading of a powder generates a product made of three phases (solid/liquid/gas) that interact through many interfaces. The respective proportions of each phase can vary according to the process parameters and the applied stress. After the...

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Main Authors: Eric Rondet, Montana Rundgsiyopas, Thierry Ruiz, Michèle Delalonde, Jean-Pierre Desfours
Format: Article
Language:English
Published: Hosokawa Powder Technology Foundation 2014-03-01
Series:KONA Powder and Particle Journal
Subjects:
Online Access:https://www.jstage.jst.go.jp/article/kona/27/0/27_2009016/_pdf/-char/en
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author Eric Rondet
Montana Rundgsiyopas
Thierry Ruiz
Michèle Delalonde
Jean-Pierre Desfours
author_facet Eric Rondet
Montana Rundgsiyopas
Thierry Ruiz
Michèle Delalonde
Jean-Pierre Desfours
author_sort Eric Rondet
collection DOAJ
description The kneading of a powder generates a product made of three phases (solid/liquid/gas) that interact through many interfaces. The respective proportions of each phase can vary according to the process parameters and the applied stress. After the initial operation of kneading, the medium can also be subjected to other stresses such as packing and thermal stresses or mechanical drying which will induce deep modifications in the relative proportions of the three phases. According to the twin influence of process strain and the nature of the three phases, the rheological behavior of the granular material can vary from that of a rigid solid to that of a more or less deformable plastic paste. The objective of this work is to depict, on a phase diagram, the potential states of each fraction constituting an unsaturated wet granular medium and their potential connectivity. From an experimental point of view, sorption isotherms and capillary retention curves allow determination of the two fluid phases state (liquid and gas). The hydrotextural diagram can be considered as a tool for the analysis and understanding of the mechanisms occurring during the processing (kneading and packing) or drying of wet granular media.
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spelling doaj.art-1c72619a6c9d4f74a5868a7e04a1621f2022-12-21T22:43:04ZengHosokawa Powder Technology FoundationKONA Powder and Particle Journal0288-45342187-55372014-03-0127017418510.14356/kona.2009016konaHydrotextural Description of an Unsaturated Humid Granular Media: Application for Kneading, Packing and Drying OperationsEric Rondet0Montana Rundgsiyopas1Thierry Ruiz2Michèle Delalonde3Jean-Pierre Desfours4Laboratoire de Génie des Procédés - Eau et Bioproduits, U.M.R. CIRAD 016, Université Montpellier 2Laboratoire de Génie des Procédés - Eau et Bioproduits, U.M.R. CIRAD 016, Université Montpellier 2Laboratoire de Génie des Procédés - Eau et Bioproduits, U.M.R. CIRAD 016, Université Montpellier 2Université Montpellier 1Laboratoire de Génie des Procédés - Eau et Bioproduits, U.M.R. CIRAD 016, Université Montpellier 2The kneading of a powder generates a product made of three phases (solid/liquid/gas) that interact through many interfaces. The respective proportions of each phase can vary according to the process parameters and the applied stress. After the initial operation of kneading, the medium can also be subjected to other stresses such as packing and thermal stresses or mechanical drying which will induce deep modifications in the relative proportions of the three phases. According to the twin influence of process strain and the nature of the three phases, the rheological behavior of the granular material can vary from that of a rigid solid to that of a more or less deformable plastic paste. The objective of this work is to depict, on a phase diagram, the potential states of each fraction constituting an unsaturated wet granular medium and their potential connectivity. From an experimental point of view, sorption isotherms and capillary retention curves allow determination of the two fluid phases state (liquid and gas). The hydrotextural diagram can be considered as a tool for the analysis and understanding of the mechanisms occurring during the processing (kneading and packing) or drying of wet granular media.https://www.jstage.jst.go.jp/article/kona/27/0/27_2009016/_pdf/-char/enstate diagramhumid granular mediakneadingpackingdryingtransformation path
spellingShingle Eric Rondet
Montana Rundgsiyopas
Thierry Ruiz
Michèle Delalonde
Jean-Pierre Desfours
Hydrotextural Description of an Unsaturated Humid Granular Media: Application for Kneading, Packing and Drying Operations
KONA Powder and Particle Journal
state diagram
humid granular media
kneading
packing
drying
transformation path
title Hydrotextural Description of an Unsaturated Humid Granular Media: Application for Kneading, Packing and Drying Operations
title_full Hydrotextural Description of an Unsaturated Humid Granular Media: Application for Kneading, Packing and Drying Operations
title_fullStr Hydrotextural Description of an Unsaturated Humid Granular Media: Application for Kneading, Packing and Drying Operations
title_full_unstemmed Hydrotextural Description of an Unsaturated Humid Granular Media: Application for Kneading, Packing and Drying Operations
title_short Hydrotextural Description of an Unsaturated Humid Granular Media: Application for Kneading, Packing and Drying Operations
title_sort hydrotextural description of an unsaturated humid granular media application for kneading packing and drying operations
topic state diagram
humid granular media
kneading
packing
drying
transformation path
url https://www.jstage.jst.go.jp/article/kona/27/0/27_2009016/_pdf/-char/en
work_keys_str_mv AT ericrondet hydrotexturaldescriptionofanunsaturatedhumidgranularmediaapplicationforkneadingpackinganddryingoperations
AT montanarundgsiyopas hydrotexturaldescriptionofanunsaturatedhumidgranularmediaapplicationforkneadingpackinganddryingoperations
AT thierryruiz hydrotexturaldescriptionofanunsaturatedhumidgranularmediaapplicationforkneadingpackinganddryingoperations
AT micheledelalonde hydrotexturaldescriptionofanunsaturatedhumidgranularmediaapplicationforkneadingpackinganddryingoperations
AT jeanpierredesfours hydrotexturaldescriptionofanunsaturatedhumidgranularmediaapplicationforkneadingpackinganddryingoperations