An Explicit Dynamic Model for Direct Reforming Carbonate Fuel Cell Stack
A nonlinear, lumped-parameter mathematical model of direct reforming carbonate fuel cell stack is extended by deriving an explicit set of differential equations for computer simulation. The equilibrium assumption used for the water-gas shift reaction results in an implicit equation set, previously s...
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| Veröffentlicht in: | IEEE power engineering review 2001-09, Vol.21 (9), p.63-63 |
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| creator | Lukas, M. D. Lee, K. Y. Ghezel-Ayagh, H. |
| description | A nonlinear, lumped-parameter mathematical model of direct reforming carbonate fuel cell stack is extended by deriving an explicit set of differential equations for computer simulation. The equilibrium assumption used for the water-gas shift reaction results in an implicit equation set, previously solved using numerical techniques. An explicit equation set is derived by eliminating a key variable associated with the water-gas shift reaction. In addition, results are improved by incorporating a fuel cell performance model to account for reversible cell potential and polarization losses. This requires determination of intermediate gas composition at the cell anode inlet, resulting in additional computations. All results and physical data used are specific to a lumped 16-stack 2-MW system design, a precursor to a demonstration plant that had been operated at Santa Clara, CA. Steady state results are validated for several load points over the upper region of operation and transient results are provided for sudden load change. |
| doi_str_mv | 10.1109/MPER.2001.4311625 |
| format | Article |
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D. ; Lee, K. Y. ; Ghezel-Ayagh, H.</creator><creatorcontrib>Lukas, M. D. ; Lee, K. Y. ; Ghezel-Ayagh, H.</creatorcontrib><description>A nonlinear, lumped-parameter mathematical model of direct reforming carbonate fuel cell stack is extended by deriving an explicit set of differential equations for computer simulation. The equilibrium assumption used for the water-gas shift reaction results in an implicit equation set, previously solved using numerical techniques. An explicit equation set is derived by eliminating a key variable associated with the water-gas shift reaction. In addition, results are improved by incorporating a fuel cell performance model to account for reversible cell potential and polarization losses. This requires determination of intermediate gas composition at the cell anode inlet, resulting in additional computations. All results and physical data used are specific to a lumped 16-stack 2-MW system design, a precursor to a demonstration plant that had been operated at Santa Clara, CA. Steady state results are validated for several load points over the upper region of operation and transient results are provided for sudden load change.</description><identifier>ISSN: 0272-1724</identifier><identifier>EISSN: 1558-1705</identifier><identifier>DOI: 10.1109/MPER.2001.4311625</identifier><identifier>CODEN: IPERDV</identifier><language>eng</language><publisher>New York: IEEE</publisher><subject>Carbonates ; Computer simulation ; Differential equations ; Fuel cells ; Gas composition ; Load flow ; Mathematical models ; Nonlinear equations ; Power engineering education ; Power system analysis computing ; Power system control ; Power system modeling ; Power system planning ; Power system transients ; Processor scheduling ; Reforming ; Shift reaction ; Stacks ; Studies</subject><ispartof>IEEE power engineering review, 2001-09, Vol.21 (9), p.63-63</ispartof><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. 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All results and physical data used are specific to a lumped 16-stack 2-MW system design, a precursor to a demonstration plant that had been operated at Santa Clara, CA. Steady state results are validated for several load points over the upper region of operation and transient results are provided for sudden load change.</description><subject>Carbonates</subject><subject>Computer simulation</subject><subject>Differential equations</subject><subject>Fuel cells</subject><subject>Gas composition</subject><subject>Load flow</subject><subject>Mathematical models</subject><subject>Nonlinear equations</subject><subject>Power engineering education</subject><subject>Power system analysis computing</subject><subject>Power system control</subject><subject>Power system modeling</subject><subject>Power system planning</subject><subject>Power system transients</subject><subject>Processor scheduling</subject><subject>Reforming</subject><subject>Shift reaction</subject><subject>Stacks</subject><subject>Studies</subject><issn>0272-1724</issn><issn>1558-1705</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2001</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNpdkE1LAzEQhoMoWKs_QLwET1625jvZY9m2VrAoVc8hzWYldbtbk12w_96UVg-eZoZ5Znh5ALjGaIQxyu8XL9PliCCER4xiLAg_AQPMucqwRPwUDBCRJPWEnYOLGNcIISkUH4D5uIHT723tre_gZNeYjbdw0ZauhlUb4MQHZzu4dGnY-OYDFias2sZ0Ds76xBSuruFrZ-znJTirTB3d1bEOwfts-lbMs6fnh8di_JTZlARnRFBBVWmspEQowfKVYYaiinLFGc9LKyhHhBGkVggbJQVl0kmF8rJUJZaGDsHd4e82tF-9i53e-GhTDNO4to8aC4mJlElCQm__oeu2D01Kp5ViUsmc8gThA2RDG2Nwld4GvzFhpzHSe7V6r1bv1eqj2nRzc7jxzrk__nf7A-AucQU</recordid><startdate>20010901</startdate><enddate>20010901</enddate><creator>Lukas, M. 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D.</creatorcontrib><creatorcontrib>Lee, K. Y.</creatorcontrib><creatorcontrib>Ghezel-Ayagh, H.</creatorcontrib><collection>IEEE All-Society Periodicals Package (ASPP) 1998-Present</collection><collection>IEEE Electronic Library (IEL)</collection><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>IEEE power engineering review</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Lukas, M. D.</au><au>Lee, K. Y.</au><au>Ghezel-Ayagh, H.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>An Explicit Dynamic Model for Direct Reforming Carbonate Fuel Cell Stack</atitle><jtitle>IEEE power engineering review</jtitle><stitle>PER</stitle><date>2001-09-01</date><risdate>2001</risdate><volume>21</volume><issue>9</issue><spage>63</spage><epage>63</epage><pages>63-63</pages><issn>0272-1724</issn><eissn>1558-1705</eissn><coden>IPERDV</coden><abstract>A nonlinear, lumped-parameter mathematical model of direct reforming carbonate fuel cell stack is extended by deriving an explicit set of differential equations for computer simulation. The equilibrium assumption used for the water-gas shift reaction results in an implicit equation set, previously solved using numerical techniques. An explicit equation set is derived by eliminating a key variable associated with the water-gas shift reaction. In addition, results are improved by incorporating a fuel cell performance model to account for reversible cell potential and polarization losses. This requires determination of intermediate gas composition at the cell anode inlet, resulting in additional computations. All results and physical data used are specific to a lumped 16-stack 2-MW system design, a precursor to a demonstration plant that had been operated at Santa Clara, CA. Steady state results are validated for several load points over the upper region of operation and transient results are provided for sudden load change.</abstract><cop>New York</cop><pub>IEEE</pub><doi>10.1109/MPER.2001.4311625</doi><tpages>1</tpages></addata></record> |
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| ispartof | IEEE power engineering review, 2001-09, Vol.21 (9), p.63-63 |
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| source | IEEE Electronic Library (IEL) |
| subjects | Carbonates Computer simulation Differential equations Fuel cells Gas composition Load flow Mathematical models Nonlinear equations Power engineering education Power system analysis computing Power system control Power system modeling Power system planning Power system transients Processor scheduling Reforming Shift reaction Stacks Studies |
| title | An Explicit Dynamic Model for Direct Reforming Carbonate Fuel Cell Stack |
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