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Modelling of transport mechanisms and drying shrinkage for multilayer ceramic membrane structure

In ceramic membrane preparation, the understanding of drying phenomena is very important to ensure no defects and failures that may present in the membrane layers. The combination of hygroscopic and non-hygroscopic multilayer systems that possess different properties is always associated with the fa...

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Main Authors:	Harun, Zawati, Tze, Ching Ong, Matsuura, Takeshi, Hubadillah, Siti Khadijah, Dzarfan Othman, Mohd Hafiz, Ismail, Ahmad Fauzi
Format:	Article
Language:	English
Published:	ScienceDirect 2018
Subjects:	T Technology (General) TJ Mechanical engineering and machinery TP155-156 Chemical engineering
Online Access:	http://eprints.uthm.edu.my/5356/1/AJ%202018%20%28165%29.pdf http://eprints.uthm.edu.my/5356/ https://doi.org/10.1016/j.cherd.2018.02.039
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spelling	my.uthm.eprints.53562022-01-09T04:31:57Z http://eprints.uthm.edu.my/5356/ Modelling of transport mechanisms and drying shrinkage for multilayer ceramic membrane structure Harun, Zawati Tze, Ching Ong Matsuura, Takeshi Hubadillah, Siti Khadijah Dzarfan Othman, Mohd Hafiz Ismail, Ahmad Fauzi T Technology (General) TJ Mechanical engineering and machinery TP155-156 Chemical engineering In ceramic membrane preparation, the understanding of drying phenomena is very important to ensure no defects and failures that may present in the membrane layers. The combination of hygroscopic and non-hygroscopic multilayer systems that possess different properties is always associated with the failure ofthe consolidated structure of ceramics during the drying and sintering process. Hence, a two-dimensional mathematical model that coupled mass, heat, and gas transfer was employed to describe the drying process as a whole multilayer ceramic membranes structure. The finite element method was used to solve the model and computation was carried out using a Skyline solver to capture the highly nonlinear and transient process. This study emphasises on the evolution of transport variables during the drying that can be correlated to shrinkage mechanism. The side surface heating boundary was performed with a conclusion that hygroscopic materials have low drying rate due to the material characteristic which inherent higher water retention in a solid matrix. This characteristic also causes higher pore water pressure and gas pressure. The drying of hygroscopic layer has resulted in higher moisture gap which in turn increased the possibilities of cracking. The results obtained from this study enable the optimisation with respect to drying time and material selection thus significantly contributes to the energy saving as well as reducing the environmental effect via less waste energy loss. ScienceDirect 2018 Article PeerReviewed text en http://eprints.uthm.edu.my/5356/1/AJ%202018%20%28165%29.pdf Harun, Zawati and Tze, Ching Ong and Matsuura, Takeshi and Hubadillah, Siti Khadijah and Dzarfan Othman, Mohd Hafiz and Ismail, Ahmad Fauzi (2018) Modelling of transport mechanisms and drying shrinkage for multilayer ceramic membrane structure. Chemical Engineering Research and Design, 133. pp. 111-125. ISSN 0263-8762 https://doi.org/10.1016/j.cherd.2018.02.039
institution	Universiti Tun Hussein Onn Malaysia
building	UTHM Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Tun Hussein Onn Malaysia
content_source	UTHM Institutional Repository
url_provider	http://eprints.uthm.edu.my/
language	English
topic	T Technology (General) TJ Mechanical engineering and machinery TP155-156 Chemical engineering
spellingShingle	T Technology (General) TJ Mechanical engineering and machinery TP155-156 Chemical engineering Harun, Zawati Tze, Ching Ong Matsuura, Takeshi Hubadillah, Siti Khadijah Dzarfan Othman, Mohd Hafiz Ismail, Ahmad Fauzi Modelling of transport mechanisms and drying shrinkage for multilayer ceramic membrane structure
description	In ceramic membrane preparation, the understanding of drying phenomena is very important to ensure no defects and failures that may present in the membrane layers. The combination of hygroscopic and non-hygroscopic multilayer systems that possess different properties is always associated with the failure ofthe consolidated structure of ceramics during the drying and sintering process. Hence, a two-dimensional mathematical model that coupled mass, heat, and gas transfer was employed to describe the drying process as a whole multilayer ceramic membranes structure. The finite element method was used to solve the model and computation was carried out using a Skyline solver to capture the highly nonlinear and transient process. This study emphasises on the evolution of transport variables during the drying that can be correlated to shrinkage mechanism. The side surface heating boundary was performed with a conclusion that hygroscopic materials have low drying rate due to the material characteristic which inherent higher water retention in a solid matrix. This characteristic also causes higher pore water pressure and gas pressure. The drying of hygroscopic layer has resulted in higher moisture gap which in turn increased the possibilities of cracking. The results obtained from this study enable the optimisation with respect to drying time and material selection thus significantly contributes to the energy saving as well as reducing the environmental effect via less waste energy loss.
format	Article
author	Harun, Zawati Tze, Ching Ong Matsuura, Takeshi Hubadillah, Siti Khadijah Dzarfan Othman, Mohd Hafiz Ismail, Ahmad Fauzi
author_facet	Harun, Zawati Tze, Ching Ong Matsuura, Takeshi Hubadillah, Siti Khadijah Dzarfan Othman, Mohd Hafiz Ismail, Ahmad Fauzi
author_sort	Harun, Zawati
title	Modelling of transport mechanisms and drying shrinkage for multilayer ceramic membrane structure
title_short	Modelling of transport mechanisms and drying shrinkage for multilayer ceramic membrane structure
title_full	Modelling of transport mechanisms and drying shrinkage for multilayer ceramic membrane structure
title_fullStr	Modelling of transport mechanisms and drying shrinkage for multilayer ceramic membrane structure
title_full_unstemmed	Modelling of transport mechanisms and drying shrinkage for multilayer ceramic membrane structure
title_sort	modelling of transport mechanisms and drying shrinkage for multilayer ceramic membrane structure
publisher	ScienceDirect
publishDate	2018
url	http://eprints.uthm.edu.my/5356/1/AJ%202018%20%28165%29.pdf http://eprints.uthm.edu.my/5356/ https://doi.org/10.1016/j.cherd.2018.02.039
_version_	1738581369038045184
score	13.211869

Modelling of transport mechanisms and drying shrinkage for multilayer ceramic membrane structure

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