Modeling of Flow Dynamics for Control of Distillation Columns

In the modeling of distillation columns for control purposes, the flow dynamics are usually assumed to be independent of and much faster than the concentration dynamics. Nearly always, it is also assumed that the energy effects can be neglected, or at least that it is sufficient to model only the st...

Full description

Saved in:
Bibliographic Details
Main Author: Haggblom, Kurt E.
Format: Conference Proceeding
Language:English
Subjects:
Chemical engineering
Composite materials
Distillation equipment
Equations
Feeds
Laboratories
Process control
Steady-state
Online Access:Request full text
Tags: Add Tag
No Tags, Be the first to tag this record!
cited_by
cites
container_end_page 790
container_issue
container_start_page 785
container_title
container_volume
creator Haggblom, Kurt E.
description In the modeling of distillation columns for control purposes, the flow dynamics are usually assumed to be independent of and much faster than the concentration dynamics. Nearly always, it is also assumed that the energy effects can be neglected, or at least that it is sufficient to model only the steady-state behavior. These assumptions are related with the popular assumption of "constant flows" in the column sections. Because the heat of vaporisation of the mixture distilled usually is dependent on its composition, especially if mass units are used, the assumption of constant flows is not valid in general. This also means that the total and component material as well as the energy balances are coupled. In the modeling of flow dynamics presented in this paper, the coupling of the balance equations is taken into account. The results clearly show how the flow dynamics, and especially the steady-state gains, are affected when the assumption of constant flows does not apply.
doi_str_mv 10.23919/ACC.1991.4791480
format conference_proceeding
fullrecord <record><control><sourceid>ieee_6IE</sourceid><recordid>TN_cdi_ieee_primary_4791480</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><ieee_id>4791480</ieee_id><sourcerecordid>4791480</sourcerecordid><originalsourceid>FETCH-LOGICAL-i88t-a0ef7970c7a8d1ec47aaf6001bc0f1455aa2cd00c1a82b1ddc78f89708b7cfe23</originalsourceid><addsrcrecordid>eNotT81KAzEYDEihWvsA4mVfYNcvf01y8FBSq0LFS-_l22wikexGNivSt3fFzmVghhlmCLmj0DBuqHnYWttQY2gjlKFCwxW5Aa2MYHIj2YIsDdRaSMmXZF3KJ8yQUhlursnjW-58isNHlUO1T_mn2p0H7KMrVchjZfMwjTn9mbtYppgSTjEPs56--6HckkXAVPz6wity3D8d7Ut9eH9-tdtDHbWeagQflFHgFOqOeicUYtgA0NZBoPMuROY6AEdRs5Z2nVM66DmgW-WCZ3xF7v9ro_f-9DXGHsfz6fKV_wJUjUiA</addsrcrecordid><sourcetype>Publisher</sourcetype><iscdi>true</iscdi><recordtype>conference_proceeding</recordtype></control><display><type>conference_proceeding</type><title>Modeling of Flow Dynamics for Control of Distillation Columns</title><source>IEEE Electronic Library (IEL) Conference Proceedings</source><creator>Haggblom, Kurt E.</creator><creatorcontrib>Haggblom, Kurt E.</creatorcontrib><description>In the modeling of distillation columns for control purposes, the flow dynamics are usually assumed to be independent of and much faster than the concentration dynamics. Nearly always, it is also assumed that the energy effects can be neglected, or at least that it is sufficient to model only the steady-state behavior. These assumptions are related with the popular assumption of "constant flows" in the column sections. Because the heat of vaporisation of the mixture distilled usually is dependent on its composition, especially if mass units are used, the assumption of constant flows is not valid in general. This also means that the total and component material as well as the energy balances are coupled. In the modeling of flow dynamics presented in this paper, the coupling of the balance equations is taken into account. The results clearly show how the flow dynamics, and especially the steady-state gains, are affected when the assumption of constant flows does not apply.</description><identifier>ISBN: 0879425652</identifier><identifier>ISBN: 9780879425654</identifier><identifier>DOI: 10.23919/ACC.1991.4791480</identifier><identifier>LCCN: 90-84553</identifier><language>eng</language><publisher>IEEE</publisher><subject>Chemical engineering ; Composite materials ; Distillation equipment ; Equations ; Feeds ; Laboratories ; Process control ; Steady-state</subject><ispartof>1991 American Control Conference, 1991, p.785-790</ispartof><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/4791480$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>309,310,776,780,785,786,2051,27904,54899</link.rule.ids><linktorsrc>$$Uhttps://ieeexplore.ieee.org/document/4791480$$EView_record_in_IEEE$$FView_record_in_$$GIEEE</linktorsrc></links><search><creatorcontrib>Haggblom, Kurt E.</creatorcontrib><title>Modeling of Flow Dynamics for Control of Distillation Columns</title><title>1991 American Control Conference</title><addtitle>ACC</addtitle><description>In the modeling of distillation columns for control purposes, the flow dynamics are usually assumed to be independent of and much faster than the concentration dynamics. Nearly always, it is also assumed that the energy effects can be neglected, or at least that it is sufficient to model only the steady-state behavior. These assumptions are related with the popular assumption of "constant flows" in the column sections. Because the heat of vaporisation of the mixture distilled usually is dependent on its composition, especially if mass units are used, the assumption of constant flows is not valid in general. This also means that the total and component material as well as the energy balances are coupled. In the modeling of flow dynamics presented in this paper, the coupling of the balance equations is taken into account. The results clearly show how the flow dynamics, and especially the steady-state gains, are affected when the assumption of constant flows does not apply.</description><subject>Chemical engineering</subject><subject>Composite materials</subject><subject>Distillation equipment</subject><subject>Equations</subject><subject>Feeds</subject><subject>Laboratories</subject><subject>Process control</subject><subject>Steady-state</subject><isbn>0879425652</isbn><isbn>9780879425654</isbn><fulltext>true</fulltext><rsrctype>conference_proceeding</rsrctype><creationdate>1991</creationdate><recordtype>conference_proceeding</recordtype><sourceid>6IE</sourceid><recordid>eNotT81KAzEYDEihWvsA4mVfYNcvf01y8FBSq0LFS-_l22wikexGNivSt3fFzmVghhlmCLmj0DBuqHnYWttQY2gjlKFCwxW5Aa2MYHIj2YIsDdRaSMmXZF3KJ8yQUhlursnjW-58isNHlUO1T_mn2p0H7KMrVchjZfMwjTn9mbtYppgSTjEPs56--6HckkXAVPz6wity3D8d7Ut9eH9-tdtDHbWeagQflFHgFOqOeicUYtgA0NZBoPMuROY6AEdRs5Z2nVM66DmgW-WCZ3xF7v9ro_f-9DXGHsfz6fKV_wJUjUiA</recordid><startdate>199106</startdate><enddate>199106</enddate><creator>Haggblom, Kurt E.</creator><general>IEEE</general><scope>6IE</scope><scope>6IL</scope><scope>CBEJK</scope><scope>RIE</scope><scope>RIL</scope></search><sort><creationdate>199106</creationdate><title>Modeling of Flow Dynamics for Control of Distillation Columns</title><author>Haggblom, Kurt E.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-i88t-a0ef7970c7a8d1ec47aaf6001bc0f1455aa2cd00c1a82b1ddc78f89708b7cfe23</frbrgroupid><rsrctype>conference_proceedings</rsrctype><prefilter>conference_proceedings</prefilter><language>eng</language><creationdate>1991</creationdate><topic>Chemical engineering</topic><topic>Composite materials</topic><topic>Distillation equipment</topic><topic>Equations</topic><topic>Feeds</topic><topic>Laboratories</topic><topic>Process control</topic><topic>Steady-state</topic><toplevel>online_resources</toplevel><creatorcontrib>Haggblom, Kurt E.</creatorcontrib><collection>IEEE Electronic Library (IEL) Conference Proceedings</collection><collection>IEEE Proceedings Order Plan All Online (POP All Online) 1998-present by volume</collection><collection>IEEE Xplore All Conference Proceedings</collection><collection>IEEE/IET Electronic Library (IEL)</collection><collection>IEEE Proceedings Order Plans (POP All) 1998-Present</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Haggblom, Kurt E.</au><format>book</format><genre>proceeding</genre><ristype>CONF</ristype><atitle>Modeling of Flow Dynamics for Control of Distillation Columns</atitle><btitle>1991 American Control Conference</btitle><stitle>ACC</stitle><date>1991-06</date><risdate>1991</risdate><spage>785</spage><epage>790</epage><pages>785-790</pages><isbn>0879425652</isbn><isbn>9780879425654</isbn><abstract>In the modeling of distillation columns for control purposes, the flow dynamics are usually assumed to be independent of and much faster than the concentration dynamics. Nearly always, it is also assumed that the energy effects can be neglected, or at least that it is sufficient to model only the steady-state behavior. These assumptions are related with the popular assumption of "constant flows" in the column sections. Because the heat of vaporisation of the mixture distilled usually is dependent on its composition, especially if mass units are used, the assumption of constant flows is not valid in general. This also means that the total and component material as well as the energy balances are coupled. In the modeling of flow dynamics presented in this paper, the coupling of the balance equations is taken into account. The results clearly show how the flow dynamics, and especially the steady-state gains, are affected when the assumption of constant flows does not apply.</abstract><pub>IEEE</pub><doi>10.23919/ACC.1991.4791480</doi><tpages>6</tpages></addata></record>
fulltext fulltext_linktorsrc
identifier ISBN: 0879425652
ispartof 1991 American Control Conference, 1991, p.785-790
issn
language eng
recordid cdi_ieee_primary_4791480
source IEEE Electronic Library (IEL) Conference Proceedings
subjects Chemical engineering
Composite materials
Distillation equipment
Equations
Feeds
Laboratories
Process control
Steady-state
title Modeling of Flow Dynamics for Control of Distillation Columns
url http://sfxeu10.hosted.exlibrisgroup.com/loughborough?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-22T20%3A24%3A47IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-ieee_6IE&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=proceeding&rft.atitle=Modeling%20of%20Flow%20Dynamics%20for%20Control%20of%20Distillation%20Columns&rft.btitle=1991%20American%20Control%20Conference&rft.au=Haggblom,%20Kurt%20E.&rft.date=1991-06&rft.spage=785&rft.epage=790&rft.pages=785-790&rft.isbn=0879425652&rft.isbn_list=9780879425654&rft_id=info:doi/10.23919/ACC.1991.4791480&rft_dat=%3Cieee_6IE%3E4791480%3C/ieee_6IE%3E%3Cgrp_id%3Ecdi_FETCH-LOGICAL-i88t-a0ef7970c7a8d1ec47aaf6001bc0f1455aa2cd00c1a82b1ddc78f89708b7cfe23%3C/grp_id%3E%3Coa%3E%3C/oa%3E%3Curl%3E%3C/url%3E&rft_id=info:oai/&rft_id=info:pmid/&rft_ieee_id=4791480&rfr_iscdi=true