The use of numerical simulation as a cognitive tool for studying the microwave drying of softwood in an over-sized waveguide
Identifieur interne : 00C586 ( Main/Exploration ); précédent : 00C585; suivant : 00C587The use of numerical simulation as a cognitive tool for studying the microwave drying of softwood in an over-sized waveguide
Auteurs : P. Perre [France] ; I. W. Turner [Australie]Source :
- Wood science and technology [ 0043-7719 ] ; 1999.
Descripteurs français
- Pascal (Inist)
English descriptors
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Abstract
A previously developed mathematical model, which uses a comprehensive two-dimensional heat and mass transport code coupled with a three-dimensional code for resolving Maxwell's equations in the time domain, will be used to investigate numerous aspects of the microwave enhanced convective drying of softwood in an over-sized waveguide. At first, in order to highlight the predictive capabilities of the developed model, comparisons will be made between theory and experiment for spruce heartwood. It will be shown that the model is able to identify most of the important heat and mass transfer phenomena that arise throughout the drying process. After validation of the numerical simulation results, the work focuses on using the model as a cognitive tool for investigating important issues for closed microwave systems which include the effect of varying the sample dimensions and changing the location of the material within the applicator. Finally, a study will be presented that compares the overall drying kinetics generated within two different types of applicator designs. The first design uses a wave-trap located at the end of the waveguide to prevent reflected energy from back-propagating into the over-sized section of the guide, while the second design uses a short-circuit plane to ensure that this reflected energy is back - propagated towards the material. The advantages and disadvantages of these two designs will be deliberated.
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Turner</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>School of Mathematics, Queensland University of Technology, GPO Box 2434</s1><s2>Brisbane, Q4001</s2><s3>AUS</s3><sZ>2 aut.</sZ></inist:fA14><country>Australie</country><wicri:noRegion>Brisbane, Q4001</wicri:noRegion></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">INIST</idno><idno type="inist">00-0014313</idno><date when="1999">1999</date><idno type="stanalyst">PASCAL 00-0014313 INIST</idno><idno type="RBID">Pascal:00-0014313</idno><idno type="wicri:Area/PascalFrancis/Corpus">006161</idno><idno type="wicri:Area/PascalFrancis/Curation">000009</idno><idno type="wicri:Area/PascalFrancis/Checkpoint">005E51</idno><idno type="wicri:explorRef" wicri:stream="PascalFrancis" wicri:step="Checkpoint">005E51</idno><idno type="wicri:doubleKey">0043-7719:1999:Perre P:the:use:of</idno><idno type="wicri:Area/Main/Merge">00D564</idno><idno type="wicri:Area/Main/Curation">00C586</idno><idno type="wicri:Area/Main/Exploration">00C586</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">The use of numerical simulation as a cognitive tool for studying the microwave drying of softwood in an over-sized waveguide</title><author><name sortKey="Perre, P" sort="Perre, P" uniqKey="Perre P" first="P." last="Perre">P. Perre</name><affiliation wicri:level="3"><inist:fA14 i1="01"><s1>E.N.G.R.E.F. - Laboratory of Forest Sciences, Forest Products Team, 14 rue Girardet</s1><s2>54042 Nancy</s2><s3>FRA</s3><sZ>1 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Grand Est</region><region type="old region" nuts="2">Lorraine (région)</region><settlement type="city">Nancy</settlement></placeName></affiliation></author><author><name sortKey="Turner, I W" sort="Turner, I W" uniqKey="Turner I" first="I. W." last="Turner">I. W. Turner</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>School of Mathematics, Queensland University of Technology, GPO Box 2434</s1><s2>Brisbane, Q4001</s2><s3>AUS</s3><sZ>2 aut.</sZ></inist:fA14><country>Australie</country><wicri:noRegion>Brisbane, Q4001</wicri:noRegion></affiliation></author></analytic><series><title level="j" type="main">Wood science and technology</title><title level="j" type="abbreviated">Wood sci. technol.</title><idno type="ISSN">0043-7719</idno><imprint><date when="1999">1999</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Wood science and technology</title><title level="j" type="abbreviated">Wood sci. technol.</title><idno type="ISSN">0043-7719</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Drying</term><term>Mathematical model</term><term>Microwave heating</term><term>Modeling</term><term>Numerical simulation</term><term>Softwood</term><term>Waveguide</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Bois résineux</term><term>Séchage</term><term>Chauffage hyperfréquence</term><term>Guide onde</term><term>Simulation numérique</term><term>Modélisation</term><term>Modèle mathématique</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">A previously developed mathematical model, which uses a comprehensive two-dimensional heat and mass transport code coupled with a three-dimensional code for resolving Maxwell's equations in the time domain, will be used to investigate numerous aspects of the microwave enhanced convective drying of softwood in an over-sized waveguide. At first, in order to highlight the predictive capabilities of the developed model, comparisons will be made between theory and experiment for spruce heartwood. It will be shown that the model is able to identify most of the important heat and mass transfer phenomena that arise throughout the drying process. After validation of the numerical simulation results, the work focuses on using the model as a cognitive tool for investigating important issues for closed microwave systems which include the effect of varying the sample dimensions and changing the location of the material within the applicator. Finally, a study will be presented that compares the overall drying kinetics generated within two different types of applicator designs. The first design uses a wave-trap located at the end of the waveguide to prevent reflected energy from back-propagating into the over-sized section of the guide, while the second design uses a short-circuit plane to ensure that this reflected energy is back - propagated towards the material. The advantages and disadvantages of these two designs will be deliberated.</div></front></TEI><affiliations><list><country><li>Australie</li><li>France</li></country><region><li>Grand Est</li><li>Lorraine (région)</li></region><settlement><li>Nancy</li></settlement></list><tree><country name="France"><region name="Grand Est"><name sortKey="Perre, P" sort="Perre, P" uniqKey="Perre P" first="P." last="Perre">P. Perre</name></region></country><country name="Australie"><noRegion><name sortKey="Turner, I W" sort="Turner, I W" uniqKey="Turner I" first="I. W." last="Turner">I. W. Turner</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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