Refined computational modeling of SOFCs degradation due to trace

Graduate Theses, Dissertations, and Problem Reports 2014 Refined computational modeling of SOFCs degradation due to trace impurities in coal syngas Hayri Sezer Follow this and additional works at: https://researchrepository.wvu.edu/etd Recommended Citation Sezer, Hayri, "Refined computational modeling of SOFCs degradation due to trace impurities in coal syngas" (2014) Graduate Theses, Dissertations, and Problem Reports 6607 https://researchrepository.wvu.edu/etd/6607 This Dissertation is protected by copyright and/or related rights It has been brought to you by the The Research Repository @ WVU with permission from the rights-holder(s) You are free to use this Dissertation in any way that is permitted by the copyright and related rights legislation that applies to your use For other uses you must obtain permission from the rights-holder(s) directly, unless additional rights are indicated by a Creative Commons license in the record and/ or on the work itself This Dissertation has been accepted for inclusion in WVU Graduate Theses, Dissertations, and Problem Reports collection by an authorized administrator of The Research Repository @ WVU For more information, please contact researchrepository@mail.wvu.edu REFINED COMPUTATIONAL MODELING OF SOFCS DEGRADATION DUE TO TRACE IMPURITIES IN COAL SYNGAS Hayri Sezer Dissertation submitted to the Benjamin M Statler College of Engineering and Mineral Resources at West Virginia University in partial fulfillment of the requirements for the degree of Doctor of Philosophy in Mechanical Engineering Ismail Celik, Ph.D., Chair Ed Sabolsky, Ph.D Harry Finklea, Ph.D Kirk Gerdes, Ph.D Nianqiang (Nick) Wu, Ph.D Department of Mechanical and Aerospace Engineering Morgantown, West Virginia 2014 Keywords: Keywords: Solid Oxide Fuel Cells, Contaminant Degradation, Automatic differentiation, Sensitivity Analysis, Impedance, Polarization, Nickel migration, Electromigration Copyright 2014 Hayri Sezer ABSTRACT REFINED COMPUTATIONAL MODELING OF SOFCS DEGRADATION DUE TO TRACE IMPURITIES IN COAL SYNGAS Hayri Sezer The Solid Oxide Fuel Cell (SOFC) is a good alternative for clean and efficient power generation These cells can be operated directly on a wide variety of fuels including biogas, hydrocarbon fuels and synthesized coal gas (syngas), which is a promising avenue for utilization of coal with much less environmental impact One of the challenges in this technology is poisoning of SOFC anodes by trace impurities contained in coal syngas One such impurity, phosphine is known to cause catastrophic failure of SOFC anode even at