Turbidity control on dissolved air flotation process using fuzzy logic
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Publication Date: | 2018 |
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Format: | Article |
Source: | Biblioteca Digital de Teses e Dissertações da FEI |
Download full: | https://repositorio.fei.edu.br/handle/FEI/1856 |
Summary: | © IWA Publishing 2018. This study intends to explore fuzzy logic control on clean water turbidity process with dissolved air flotation (DAF). Three different strategies were tested to regulate clean water turbidity by manipulating the saturator vessel flow output aiming for low actuators control effort. Saturator pressure was the manipulated variable (MV) in the first control loop named SISO I. The second control loop, SISO II, used recycle stream valve opening as MV. The third control loop (MISO) was developed applying fuzzy logic instead PID control. Several performance criteria were used to analyze the process control performance such as integral absolute error (IAE), recycle stream valve and saturator vessel pressure regulating valve control efforts, ECV 01 and ECV 02 respectively. Results from SISO I and SISO II strategies showed that recycle stream is a better MV than saturator vessel pressure for clean water turbidity control in the DAF process. Only SISO II and MISO strategies proved to be capable of regulating the process variable. However, MISO control showed better performance based on IAE value against SISO II, with a reduction of 11.24% on its value, even the recycle stream valve control effort for MISO control being fairly higher than that for SISO II. Nevertheless, fuzzy logic control application gave rise to better turbidity control, and consequently prevented the excessive use of clean water in the recycling stream. |
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Fonseca R.R.Franco I.C.Thompson J.P.da Silva F.V.2019-08-20T00:12:14Z2019-08-20T00:12:14Z2018FONSECA, RODOLPHO RODRIGUES; FRANCO, Ivan Carlos; THOMPSON, JOSÉ PEDRO; DA SILVA, FLAVIO VASCONCELOS. Turbidity control on dissolved air flotation process using fuzzy logic. WATER SCIENCE AND TECHNOLOGY, v. 78, n. 12, p. 2586-2596, 2019.0273-1223https://repositorio.fei.edu.br/handle/FEI/185610.2166/wst.2019.015© IWA Publishing 2018. This study intends to explore fuzzy logic control on clean water turbidity process with dissolved air flotation (DAF). Three different strategies were tested to regulate clean water turbidity by manipulating the saturator vessel flow output aiming for low actuators control effort. Saturator pressure was the manipulated variable (MV) in the first control loop named SISO I. The second control loop, SISO II, used recycle stream valve opening as MV. The third control loop (MISO) was developed applying fuzzy logic instead PID control. Several performance criteria were used to analyze the process control performance such as integral absolute error (IAE), recycle stream valve and saturator vessel pressure regulating valve control efforts, ECV 01 and ECV 02 respectively. Results from SISO I and SISO II strategies showed that recycle stream is a better MV than saturator vessel pressure for clean water turbidity control in the DAF process. Only SISO II and MISO strategies proved to be capable of regulating the process variable. However, MISO control showed better performance based on IAE value against SISO II, with a reduction of 11.24% on its value, even the recycle stream valve control effort for MISO control being fairly higher than that for SISO II. Nevertheless, fuzzy logic control application gave rise to better turbidity control, and consequently prevented the excessive use of clean water in the recycling stream.781225862596Water Science and TechnologyTurbidity control on dissolved air flotation process using fuzzy logicinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleAutomationDissolved air flotationFuzzyinfo:eu-repo/semantics/openAccessreponame:Biblioteca Digital de Teses e Dissertações da FEIinstname:Centro Universitário da Fundação Educacional Inaciana (FEI)instacron:FEI12-s2.0-85061578566Dissolved air flotationsFuzzyFuzzy logic controlFuzzy logic control applicationsIntegral absolute errorsManipulated variablesPerformance criterionProcess control performanceAirFuzzy LogicWater PollutionWater Purificationhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85061578566&origin=inward2022-06-01FEI/18562022-06-01 03:06:22.504Biblioteca Digital de Teses e Dissertaçõeshttp://sofia.fei.edu.br/pergamum/biblioteca/PRI |
dc.title.none.fl_str_mv |
Turbidity control on dissolved air flotation process using fuzzy logic |
title |
Turbidity control on dissolved air flotation process using fuzzy logic |
spellingShingle |
Turbidity control on dissolved air flotation process using fuzzy logic Fonseca R.R. Automation Dissolved air flotation Fuzzy |
title_short |
Turbidity control on dissolved air flotation process using fuzzy logic |
title_full |
Turbidity control on dissolved air flotation process using fuzzy logic |
title_fullStr |
Turbidity control on dissolved air flotation process using fuzzy logic |
title_full_unstemmed |
Turbidity control on dissolved air flotation process using fuzzy logic |
title_sort |
Turbidity control on dissolved air flotation process using fuzzy logic |
author |
Fonseca R.R. |
author_facet |
Fonseca R.R. Franco I.C. Thompson J.P. da Silva F.V. |
author_role |
author |
author2 |
Franco I.C. Thompson J.P. da Silva F.V. |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Fonseca R.R. Franco I.C. Thompson J.P. da Silva F.V. |
dc.subject.eng.fl_str_mv |
Automation Dissolved air flotation Fuzzy |
topic |
Automation Dissolved air flotation Fuzzy |
description |
© IWA Publishing 2018. This study intends to explore fuzzy logic control on clean water turbidity process with dissolved air flotation (DAF). Three different strategies were tested to regulate clean water turbidity by manipulating the saturator vessel flow output aiming for low actuators control effort. Saturator pressure was the manipulated variable (MV) in the first control loop named SISO I. The second control loop, SISO II, used recycle stream valve opening as MV. The third control loop (MISO) was developed applying fuzzy logic instead PID control. Several performance criteria were used to analyze the process control performance such as integral absolute error (IAE), recycle stream valve and saturator vessel pressure regulating valve control efforts, ECV 01 and ECV 02 respectively. Results from SISO I and SISO II strategies showed that recycle stream is a better MV than saturator vessel pressure for clean water turbidity control in the DAF process. Only SISO II and MISO strategies proved to be capable of regulating the process variable. However, MISO control showed better performance based on IAE value against SISO II, with a reduction of 11.24% on its value, even the recycle stream valve control effort for MISO control being fairly higher than that for SISO II. Nevertheless, fuzzy logic control application gave rise to better turbidity control, and consequently prevented the excessive use of clean water in the recycling stream. |
publishDate |
2018 |
dc.date.issued.fl_str_mv |
2018 |
dc.date.accessioned.fl_str_mv |
2019-08-20T00:12:14Z |
dc.date.available.fl_str_mv |
2019-08-20T00:12:14Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
FONSECA, RODOLPHO RODRIGUES; FRANCO, Ivan Carlos; THOMPSON, JOSÉ PEDRO; DA SILVA, FLAVIO VASCONCELOS. Turbidity control on dissolved air flotation process using fuzzy logic. WATER SCIENCE AND TECHNOLOGY, v. 78, n. 12, p. 2586-2596, 2019. |
dc.identifier.uri.fl_str_mv |
https://repositorio.fei.edu.br/handle/FEI/1856 |
dc.identifier.issn.none.fl_str_mv |
0273-1223 |
dc.identifier.doi.none.fl_str_mv |
10.2166/wst.2019.015 |
identifier_str_mv |
FONSECA, RODOLPHO RODRIGUES; FRANCO, Ivan Carlos; THOMPSON, JOSÉ PEDRO; DA SILVA, FLAVIO VASCONCELOS. Turbidity control on dissolved air flotation process using fuzzy logic. WATER SCIENCE AND TECHNOLOGY, v. 78, n. 12, p. 2586-2596, 2019. 0273-1223 10.2166/wst.2019.015 |
url |
https://repositorio.fei.edu.br/handle/FEI/1856 |
dc.relation.ispartof.none.fl_str_mv |
Water Science and Technology |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
reponame:Biblioteca Digital de Teses e Dissertações da FEI instname:Centro Universitário da Fundação Educacional Inaciana (FEI) instacron:FEI |
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Centro Universitário da Fundação Educacional Inaciana (FEI) |
instacron_str |
FEI |
institution |
FEI |
reponame_str |
Biblioteca Digital de Teses e Dissertações da FEI |
collection |
Biblioteca Digital de Teses e Dissertações da FEI |
repository.name.fl_str_mv |
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repository.mail.fl_str_mv |
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1734750995540344832 |