Residence Time Distribution in Mixed-Flow Grain Dryers

Unfavorable design of mixed-flow dryers can affect broad residence time distributions, causing nonuniform drying. To simulate particle movement, a two-dimensional model based on the discrete element method (DEM) was developed using the commercial software Particle Flow Code PFC-2D (Itasca Consulting...

Full description

Saved in:
Bibliographic Details
Published in:Drying technology 2011-01, Vol.29 (11), p.1252-1266
Main Authors: Iroba, K. L., Weigler, F., Mellmann, J., Metzger, T., Tsotsas, E.
Format: Article
Language:English
Subjects:
Design engineering
Differential equations
Discrete element method
Driers
Drying
Drying agents
Fluid dynamics
Grain flow
Inhomogeneities
Mathematical models
Mixed-flow dryer
Particle velocity
Residence time
Residence time distribution
Software
Two dimensional
Velocity
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
cited_by cdi_FETCH-LOGICAL-c404t-94d4a4b4a335da7fade2c1cae9c183bcb9215da9fef2b628f6ae4b1646db7b8d3
cites cdi_FETCH-LOGICAL-c404t-94d4a4b4a335da7fade2c1cae9c183bcb9215da9fef2b628f6ae4b1646db7b8d3
container_end_page 1266
container_issue 11
container_start_page 1252
container_title Drying technology
container_volume 29
creator Iroba, K. L.
Weigler, F.
Mellmann, J.
Metzger, T.
Tsotsas, E.
description Unfavorable design of mixed-flow dryers can affect broad residence time distributions, causing nonuniform drying. To simulate particle movement, a two-dimensional model based on the discrete element method (DEM) was developed using the commercial software Particle Flow Code PFC-2D (Itasca Consulting Group, Inc., Minneapolis, MN). The residence time analysis was employed to detect flow inhomogeneities and design deficits. The influences of structural parameters were considered by evaluating particle velocity and residence time distributions. Model validation in a semi-technical test dryer revealed that the 2D DEM model is very successful in predicting the particle flow patterns, so that it can be used to improve the dryer design.
doi_str_mv 10.1080/07373937.2011.591711
format article
fullrecord <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_journals_883459235</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>1019641828</sourcerecordid><originalsourceid>FETCH-LOGICAL-c404t-94d4a4b4a335da7fade2c1cae9c183bcb9215da9fef2b628f6ae4b1646db7b8d3</originalsourceid><addsrcrecordid>eNp9kE1Lw0AURQdRsFb_gYvgyk3qfCWZWYlUW4WKIHU9zCdMSTJ1JqH235sQ3bhw9eC9cy-PA8A1ggsEGbyDFakIJ9UCQ4QWBUcVQidghgqCc0wgPAWzEclH5hxcpLSDEDLEixko323yxrbaZlvf2OzRpy561Xc-tJlvs1f_ZU2-qsMhW0c5LB7j0cZ0Cc6crJO9-plz8LF62i6f883b-mX5sMk1hbTLOTVUUkUlIYWRlZPGYo20tFwjRpRWHKPhwJ11WJWYuVJaqlBJS6MqxQyZg9updx_DZ29TJxqftK1r2drQJ4Eg4iVFDLMBvfmD7kIf2-E7wRihBcekGCA6QTqGlKJ1Yh99I-NxaBKjS_HrUowuxeRyiN1PMd-6EBt5CLE2opPHOkQXZat9EuTfhm8I1nn0</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>883459235</pqid></control><display><type>article</type><title>Residence Time Distribution in Mixed-Flow Grain Dryers</title><source>Taylor and Francis Science and Technology Collection</source><creator>Iroba, K. L. ; Weigler, F. ; Mellmann, J. ; Metzger, T. ; Tsotsas, E.</creator><creatorcontrib>Iroba, K. L. ; Weigler, F. ; Mellmann, J. ; Metzger, T. ; Tsotsas, E.</creatorcontrib><description>Unfavorable design of mixed-flow dryers can affect broad residence time distributions, causing nonuniform drying. To simulate particle movement, a two-dimensional model based on the discrete element method (DEM) was developed using the commercial software Particle Flow Code PFC-2D (Itasca Consulting Group, Inc., Minneapolis, MN). The residence time analysis was employed to detect flow inhomogeneities and design deficits. The influences of structural parameters were considered by evaluating particle velocity and residence time distributions. Model validation in a semi-technical test dryer revealed that the 2D DEM model is very successful in predicting the particle flow patterns, so that it can be used to improve the dryer design.</description><identifier>ISSN: 0737-3937</identifier><identifier>EISSN: 1532-2300</identifier><identifier>DOI: 10.1080/07373937.2011.591711</identifier><language>eng</language><publisher>Philadelphia: Taylor &amp; Francis Group</publisher><subject>Design engineering ; Differential equations ; Discrete element method ; Driers ; Drying ; Drying agents ; Fluid dynamics ; Grain flow ; Inhomogeneities ; Mathematical models ; Mixed-flow dryer ; Particle velocity ; Residence time ; Residence time distribution ; Software ; Two dimensional ; Velocity</subject><ispartof>Drying technology, 2011-01, Vol.29 (11), p.1252-1266</ispartof><rights>Copyright Taylor &amp; Francis Group, LLC 2011</rights><rights>Copyright Taylor &amp; Francis Ltd. 2011</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c404t-94d4a4b4a335da7fade2c1cae9c183bcb9215da9fef2b628f6ae4b1646db7b8d3</citedby><cites>FETCH-LOGICAL-c404t-94d4a4b4a335da7fade2c1cae9c183bcb9215da9fef2b628f6ae4b1646db7b8d3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27903,27904</link.rule.ids></links><search><creatorcontrib>Iroba, K. L.</creatorcontrib><creatorcontrib>Weigler, F.</creatorcontrib><creatorcontrib>Mellmann, J.</creatorcontrib><creatorcontrib>Metzger, T.</creatorcontrib><creatorcontrib>Tsotsas, E.</creatorcontrib><title>Residence Time Distribution in Mixed-Flow Grain Dryers</title><title>Drying technology</title><description>Unfavorable design of mixed-flow dryers can affect broad residence time distributions, causing nonuniform drying. To simulate particle movement, a two-dimensional model based on the discrete element method (DEM) was developed using the commercial software Particle Flow Code PFC-2D (Itasca Consulting Group, Inc., Minneapolis, MN). The residence time analysis was employed to detect flow inhomogeneities and design deficits. The influences of structural parameters were considered by evaluating particle velocity and residence time distributions. Model validation in a semi-technical test dryer revealed that the 2D DEM model is very successful in predicting the particle flow patterns, so that it can be used to improve the dryer design.</description><subject>Design engineering</subject><subject>Differential equations</subject><subject>Discrete element method</subject><subject>Driers</subject><subject>Drying</subject><subject>Drying agents</subject><subject>Fluid dynamics</subject><subject>Grain flow</subject><subject>Inhomogeneities</subject><subject>Mathematical models</subject><subject>Mixed-flow dryer</subject><subject>Particle velocity</subject><subject>Residence time</subject><subject>Residence time distribution</subject><subject>Software</subject><subject>Two dimensional</subject><subject>Velocity</subject><issn>0737-3937</issn><issn>1532-2300</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><recordid>eNp9kE1Lw0AURQdRsFb_gYvgyk3qfCWZWYlUW4WKIHU9zCdMSTJ1JqH235sQ3bhw9eC9cy-PA8A1ggsEGbyDFakIJ9UCQ4QWBUcVQidghgqCc0wgPAWzEclH5hxcpLSDEDLEixko323yxrbaZlvf2OzRpy561Xc-tJlvs1f_ZU2-qsMhW0c5LB7j0cZ0Cc6crJO9-plz8LF62i6f883b-mX5sMk1hbTLOTVUUkUlIYWRlZPGYo20tFwjRpRWHKPhwJ11WJWYuVJaqlBJS6MqxQyZg9updx_DZ29TJxqftK1r2drQJ4Eg4iVFDLMBvfmD7kIf2-E7wRihBcekGCA6QTqGlKJ1Yh99I-NxaBKjS_HrUowuxeRyiN1PMd-6EBt5CLE2opPHOkQXZat9EuTfhm8I1nn0</recordid><startdate>20110101</startdate><enddate>20110101</enddate><creator>Iroba, K. L.</creator><creator>Weigler, F.</creator><creator>Mellmann, J.</creator><creator>Metzger, T.</creator><creator>Tsotsas, E.</creator><general>Taylor &amp; Francis Group</general><general>Taylor &amp; Francis Ltd</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7TB</scope><scope>8FD</scope><scope>FR3</scope></search><sort><creationdate>20110101</creationdate><title>Residence Time Distribution in Mixed-Flow Grain Dryers</title><author>Iroba, K. L. ; Weigler, F. ; Mellmann, J. ; Metzger, T. ; Tsotsas, E.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c404t-94d4a4b4a335da7fade2c1cae9c183bcb9215da9fef2b628f6ae4b1646db7b8d3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>Design engineering</topic><topic>Differential equations</topic><topic>Discrete element method</topic><topic>Driers</topic><topic>Drying</topic><topic>Drying agents</topic><topic>Fluid dynamics</topic><topic>Grain flow</topic><topic>Inhomogeneities</topic><topic>Mathematical models</topic><topic>Mixed-flow dryer</topic><topic>Particle velocity</topic><topic>Residence time</topic><topic>Residence time distribution</topic><topic>Software</topic><topic>Two dimensional</topic><topic>Velocity</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Iroba, K. L.</creatorcontrib><creatorcontrib>Weigler, F.</creatorcontrib><creatorcontrib>Mellmann, J.</creatorcontrib><creatorcontrib>Metzger, T.</creatorcontrib><creatorcontrib>Tsotsas, E.</creatorcontrib><collection>CrossRef</collection><collection>Mechanical &amp; Transportation Engineering Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><jtitle>Drying technology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Iroba, K. L.</au><au>Weigler, F.</au><au>Mellmann, J.</au><au>Metzger, T.</au><au>Tsotsas, E.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Residence Time Distribution in Mixed-Flow Grain Dryers</atitle><jtitle>Drying technology</jtitle><date>2011-01-01</date><risdate>2011</risdate><volume>29</volume><issue>11</issue><spage>1252</spage><epage>1266</epage><pages>1252-1266</pages><issn>0737-3937</issn><eissn>1532-2300</eissn><abstract>Unfavorable design of mixed-flow dryers can affect broad residence time distributions, causing nonuniform drying. To simulate particle movement, a two-dimensional model based on the discrete element method (DEM) was developed using the commercial software Particle Flow Code PFC-2D (Itasca Consulting Group, Inc., Minneapolis, MN). The residence time analysis was employed to detect flow inhomogeneities and design deficits. The influences of structural parameters were considered by evaluating particle velocity and residence time distributions. Model validation in a semi-technical test dryer revealed that the 2D DEM model is very successful in predicting the particle flow patterns, so that it can be used to improve the dryer design.</abstract><cop>Philadelphia</cop><pub>Taylor &amp; Francis Group</pub><doi>10.1080/07373937.2011.591711</doi><tpages>15</tpages></addata></record>
fulltext fulltext
identifier ISSN: 0737-3937
ispartof Drying technology, 2011-01, Vol.29 (11), p.1252-1266
issn 0737-3937
1532-2300
language eng
recordid cdi_proquest_journals_883459235
source Taylor and Francis Science and Technology Collection
subjects Design engineering
Differential equations
Discrete element method
Driers
Drying
Drying agents
Fluid dynamics
Grain flow
Inhomogeneities
Mathematical models
Mixed-flow dryer
Particle velocity
Residence time
Residence time distribution
Software
Two dimensional
Velocity
title Residence Time Distribution in Mixed-Flow Grain Dryers
url http://sfxeu10.hosted.exlibrisgroup.com/loughborough?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-25T01%3A25%3A41IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Residence%20Time%20Distribution%20in%20Mixed-Flow%20Grain%20Dryers&rft.jtitle=Drying%20technology&rft.au=Iroba,%20K.%20L.&rft.date=2011-01-01&rft.volume=29&rft.issue=11&rft.spage=1252&rft.epage=1266&rft.pages=1252-1266&rft.issn=0737-3937&rft.eissn=1532-2300&rft_id=info:doi/10.1080/07373937.2011.591711&rft_dat=%3Cproquest_cross%3E1019641828%3C/proquest_cross%3E%3Cgrp_id%3Ecdi_FETCH-LOGICAL-c404t-94d4a4b4a335da7fade2c1cae9c183bcb9215da9fef2b628f6ae4b1646db7b8d3%3C/grp_id%3E%3Coa%3E%3C/oa%3E%3Curl%3E%3C/url%3E&rft_id=info:oai/&rft_pqid=883459235&rft_id=info:pmid/&rfr_iscdi=true