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A novel hybrid approach to model high pressure impregnation process
Authors: Vatankhah, Hamed, Akbarzadeh, Abdolhamid, Ramaswamy, Hosahalli S.
Identifier: CSBE18178
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Published in: CSBE-SCGAB Technical Conferences » AGM Guelph 2018
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Description: Pressure-driven fluid flow is a transport phenomenon which occurs during high pressure processing of biological porous materials when confined in a fluid phase. Due to technical difficulties, the process could not be monitored visually. Thus, the mass transfer &/or pressure profile inside the tissue could only be predicted using computational models. In this regard, a novel algorithm is developed to couple the identified Fickian mass transfer to Darcy’s equation for unsaturated porous media. The coupling led to an approximation of a transient flow-induced pressure gradient profile within the tissue. The numerical simulation is also adjusted for various scenarios regarding the effective permeability of the tissue and a variable permeability function is introduced using the Kozney-Carman model to consider the pressure-induced inhomogeneity within the texture of the porous biomaterials. The proposed methodology is examined by simulating the impregnation of apple, as a porous biological material, by ascorbic acid solution. The proposed approach could also elaborate existence of a low-pressure zone during the industrial high-pressure processing of porous biological materials confined in a fluid phase.
Keywords: Porous biomaterials, High pressure processing, Mathematical modeling
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Date: 2018-07-22
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Conference name: CSBE/SCGAB 2018 Annual Conference, School of Engineering, University of Guelph, Guelph, Ontario, July 22-25 2018.
Session name: Process and Product Development II
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Type: Text.Article
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Publication type: Technical conference
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Coverage: Canada
Language 1: en
Language 2:
Rights: Canadian Society for Bioengineering
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DOI:
Description: Pressure-driven fluid flow is a transport phenomenon which occurs during high pressure processing of biological porous materials when confined in a fluid phase. Due to technical difficulties, the process could not be monitored visually. Thus, the mass transfer &/or pressure profile inside the tissue could only be predicted using computational models. In this regard, a novel algorithm is developed to couple the identified Fickian mass transfer to Darcy’s equation for unsaturated porous media. The coupling led to an approximation of a transient flow-induced pressure gradient profile within the tissue. The numerical simulation is also adjusted for various scenarios regarding the effective permeability of the tissue and a variable permeability function is introduced using the Kozney-Carman model to consider the pressure-induced inhomogeneity within the texture of the porous biomaterials. The proposed methodology is examined by simulating the impregnation of apple, as a porous biological material, by ascorbic acid solution. The proposed approach could also elaborate existence of a low-pressure zone during the industrial high-pressure processing of porous biological materials confined in a fluid phase.
Keywords: Porous biomaterials, High pressure processing, Mathematical modeling
Résumé:
Mots-clés:
Citation:
Volume:
Issue:
Pages -
Contributor:
Date: 2018-07-22
Technical field:
Conference name: CSBE/SCGAB 2018 Annual Conference, School of Engineering, University of Guelph, Guelph, Ontario, July 22-25 2018.
Session name: Process and Product Development II
Other information:
Type: Text.Article
Format:
Publication type: Technical conference
Source:
Relation:
Coverage: Canada
Language 1: en
Language 2:
Rights: Canadian Society for Bioengineering
Notes:
Other files:
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