Analysis of the dynamic performance of a microbial fuel cell using a system identification approach
Microbial fuel cells (MFCs) are bioelectrochemical devices which use micro-organisms as catalyst for electrogenesis at the anode; oxidizing biodegradable substrate to produce electrical current. MFC power output is a function of many factors; including pH, temperature, loading rate, flow rate and el...
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Veröffentlicht in: | Journal of power sources 2013-09, Vol.238, p.218-226 |
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creator | Boghani, Hitesh C. Kim, Jung Rae Dinsdale, Richard M. Guwy, Alan J. Premier, Giuliano C. |
description | Microbial fuel cells (MFCs) are bioelectrochemical devices which use micro-organisms as catalyst for electrogenesis at the anode; oxidizing biodegradable substrate to produce electrical current. MFC power output is a function of many factors; including pH, temperature, loading rate, flow rate and electrical load. The study presents a system identification approach to determine a set of linear dynamic black box models able to quantify and represent specific nonlinear characteristics of a MFC. A sandwich-type MFC was subjected to varying electrical loads of various pseudo-random and step inputs, while observing the MFC voltage. Nonlinear behaviour was inferred from assumed piecewise linearised first order dynamic responses, at different operating points. The time constants increased from 0.5 s with PRBS loading of 100–150 Ω, to 6.2 s at 950–1 kΩ; although steady state gain varied little, (0.12–0.20 mV Ω−1). This suggests that the MFC's non-linear behaviour, dependent on operating conditions, may be adequately represented by a series of linear models. System identification suggested that linear 4th order ARX models produce the best fit. However, reasonable prediction was observed using piecewise linearised first order models. The models could be used to design and optimize controllers to regulate power and/or voltage generation
•We determine and consider validity of cause and effect models for a microbial fuel cell (MFC).•We analyse the nonlinearity of the MFC by observing linear model parameters; variation with electrical loading.•We show that MFCs subject to wide load variation can be modelled by piece-wise linearization. |
doi_str_mv | 10.1016/j.jpowsour.2013.03.061 |
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•We determine and consider validity of cause and effect models for a microbial fuel cell (MFC).•We analyse the nonlinearity of the MFC by observing linear model parameters; variation with electrical loading.•We show that MFCs subject to wide load variation can be modelled by piece-wise linearization.</description><subject>Applied sciences</subject><subject>Biochemical fuel cells</subject><subject>Bioelectrochemical system (BES)</subject><subject>Biological and medical sciences</subject><subject>Direct energy conversion and energy accumulation</subject><subject>Dynamic tests</subject><subject>Dynamical systems</subject><subject>Electric potential</subject><subject>Electric power generation</subject><subject>Electrical engineering. Electrical power engineering</subject><subject>Electrical power engineering</subject><subject>Electrochemical conversion: primary and secondary batteries, fuel cells</subject><subject>Electrochemistry</subject><subject>Energy</subject><subject>Energy. Thermal use of fuels</subject><subject>Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc</subject><subject>Exact sciences and technology</subject><subject>Fuel cells</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Mathematical models</subject><subject>Microbial fuel cell (MFC)</subject><subject>Microorganisms</subject><subject>Molecular biophysics</subject><subject>Nonlinear dynamics</subject><subject>Nonlinear system</subject><subject>Nonlinearity</subject><subject>Parametric modelling</subject><subject>Physical chemistry in biology</subject><subject>Piece-wise linearisation</subject><subject>System identification</subject><subject>Transport and storage of energy</subject><issn>0378-7753</issn><issn>1873-2755</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><recordid>eNqFUcFq3DAQFaWBbpP-QtCl0Is3Gkvy2LeG0LSFQC7tWciylGixLVdjt-zfV8umvQaGGdC8mTd6j7FrEHsQ0Nwc9ocl_aG05X0tQO5FiQbesB20KKsatX7LdkJiWyFq-Y69JzoIIQBQ7Ji7ne14pEg8Bb4-ez4cZztFxxefQ8qTnZ0_tSwvjzn10Y48bH7kzo8j3yjOT6VHR1r9xOPg5zWG6Owa08ztsuRk3fMVuwh2JP_hpV6yn_dfftx9qx4ev36_u32onFJ6rbpuABxKkqC7HjoVbCNdI7HcrgT0GHppVd8qgcoODpqgHTrUfsCurUHIS_bpvLfQ_to8rWaKdLrTzj5tZEALLRU2Hb4OVaotwumuLtDmDC3fJ8o-mCXHyeajAWFOBpiD-WeAORlgRIkGyuDHFw5Lzo4hFy0j_Z-uUWlUdVdwn884X7T5HX025KIvug8xe7eaIcXXqP4CYIGfvg</recordid><startdate>20130915</startdate><enddate>20130915</enddate><creator>Boghani, Hitesh C.</creator><creator>Kim, Jung Rae</creator><creator>Dinsdale, Richard M.</creator><creator>Guwy, Alan J.</creator><creator>Premier, Giuliano C.</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>7SU</scope><scope>7TB</scope><scope>8FD</scope><scope>C1K</scope><scope>FR3</scope><scope>H8D</scope><scope>KR7</scope><scope>L7M</scope></search><sort><creationdate>20130915</creationdate><title>Analysis of the dynamic performance of a microbial fuel cell using a system identification approach</title><author>Boghani, Hitesh C. ; Kim, Jung Rae ; Dinsdale, Richard M. ; Guwy, Alan J. ; Premier, Giuliano C.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c445t-99d17d9d13159b194fa63c637037401b7fb3a4b84074adc16f5c7c75ed7982103</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2013</creationdate><topic>Applied sciences</topic><topic>Biochemical fuel cells</topic><topic>Bioelectrochemical system (BES)</topic><topic>Biological and medical sciences</topic><topic>Direct energy conversion and energy accumulation</topic><topic>Dynamic tests</topic><topic>Dynamical systems</topic><topic>Electric potential</topic><topic>Electric power generation</topic><topic>Electrical engineering. Electrical power engineering</topic><topic>Electrical power engineering</topic><topic>Electrochemical conversion: primary and secondary batteries, fuel cells</topic><topic>Electrochemistry</topic><topic>Energy</topic><topic>Energy. Thermal use of fuels</topic><topic>Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc</topic><topic>Exact sciences and technology</topic><topic>Fuel cells</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>Mathematical models</topic><topic>Microbial fuel cell (MFC)</topic><topic>Microorganisms</topic><topic>Molecular biophysics</topic><topic>Nonlinear dynamics</topic><topic>Nonlinear system</topic><topic>Nonlinearity</topic><topic>Parametric modelling</topic><topic>Physical chemistry in biology</topic><topic>Piece-wise linearisation</topic><topic>System identification</topic><topic>Transport and storage of energy</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Boghani, Hitesh C.</creatorcontrib><creatorcontrib>Kim, Jung Rae</creatorcontrib><creatorcontrib>Dinsdale, Richard M.</creatorcontrib><creatorcontrib>Guwy, Alan J.</creatorcontrib><creatorcontrib>Premier, Giuliano C.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Environmental Engineering Abstracts</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Engineering Research Database</collection><collection>Aerospace Database</collection><collection>Civil Engineering Abstracts</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Journal of power sources</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Boghani, Hitesh C.</au><au>Kim, Jung Rae</au><au>Dinsdale, Richard M.</au><au>Guwy, Alan J.</au><au>Premier, Giuliano C.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Analysis of the dynamic performance of a microbial fuel cell using a system identification approach</atitle><jtitle>Journal of power sources</jtitle><date>2013-09-15</date><risdate>2013</risdate><volume>238</volume><spage>218</spage><epage>226</epage><pages>218-226</pages><issn>0378-7753</issn><eissn>1873-2755</eissn><coden>JPSODZ</coden><abstract>Microbial fuel cells (MFCs) are bioelectrochemical devices which use micro-organisms as catalyst for electrogenesis at the anode; oxidizing biodegradable substrate to produce electrical current. MFC power output is a function of many factors; including pH, temperature, loading rate, flow rate and electrical load. The study presents a system identification approach to determine a set of linear dynamic black box models able to quantify and represent specific nonlinear characteristics of a MFC. A sandwich-type MFC was subjected to varying electrical loads of various pseudo-random and step inputs, while observing the MFC voltage. Nonlinear behaviour was inferred from assumed piecewise linearised first order dynamic responses, at different operating points. The time constants increased from 0.5 s with PRBS loading of 100–150 Ω, to 6.2 s at 950–1 kΩ; although steady state gain varied little, (0.12–0.20 mV Ω−1). This suggests that the MFC's non-linear behaviour, dependent on operating conditions, may be adequately represented by a series of linear models. System identification suggested that linear 4th order ARX models produce the best fit. However, reasonable prediction was observed using piecewise linearised first order models. The models could be used to design and optimize controllers to regulate power and/or voltage generation
•We determine and consider validity of cause and effect models for a microbial fuel cell (MFC).•We analyse the nonlinearity of the MFC by observing linear model parameters; variation with electrical loading.•We show that MFCs subject to wide load variation can be modelled by piece-wise linearization.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/j.jpowsour.2013.03.061</doi><tpages>9</tpages></addata></record> |
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subjects | Applied sciences Biochemical fuel cells Bioelectrochemical system (BES) Biological and medical sciences Direct energy conversion and energy accumulation Dynamic tests Dynamical systems Electric potential Electric power generation Electrical engineering. Electrical power engineering Electrical power engineering Electrochemical conversion: primary and secondary batteries, fuel cells Electrochemistry Energy Energy. Thermal use of fuels Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc Exact sciences and technology Fuel cells Fundamental and applied biological sciences. Psychology Mathematical models Microbial fuel cell (MFC) Microorganisms Molecular biophysics Nonlinear dynamics Nonlinear system Nonlinearity Parametric modelling Physical chemistry in biology Piece-wise linearisation System identification Transport and storage of energy |
title | Analysis of the dynamic performance of a microbial fuel cell using a system identification approach |
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