Exergoeconomic Analysis of a Combined Ammonia Based Solid Oxide Fuel Cell System

An exergoeconomic study of an ammonia-fed solid oxide fuel cell (SOFC) based combined system for transportation applications is presented in this paper. The relations between capital costs and thermodynamic losses for the system components are investigated. The exergoeconomic analysis includes the SOFC stack and system components, including the compressor, microturbine, pressure regulator, and heat exchangers. A parametric study is also conducted to investigate the system performance and costs of the components, depending on the operating temperature, exhaust temperature, and fuel utilization ratio. A parametric study is performed to show how the ratio of the thermodynamic loss rate to capital cost changes with operating parameters. For the devices and the overall system, some practical correlations are introduced to relate the capital cost and total exergy loss. The ratio of exergy consumption to capital cost is found to be strongly dependent on the current density and stack temperature, but less affected by the fuel utilization ratio.

[1]  Ibrahim Dincer,et al.  Thermodynamic performance analysis and optimization of a SOFC-H+ system , 2009 .

[2]  George Tsatsaronis,et al.  ON AVOIDABLE AND UNAVOIDABLE EXERGY DESTRUCTIONS AND INVESTMENT COSTS IN THERMAL SYSTEMS , 2002 .

[3]  William J. Thomson,et al.  Ammonia decomposition kinetics over Ni-Pt/Al2O3 for PEM fuel cell applications , 2002 .

[4]  Ibrahim Dincer,et al.  Exergy-cost-energy-mass analysis of thermal systems and processes , 2003 .

[5]  James Larminie,et al.  Fuel Cell Systems Explained , 2000 .

[6]  N. Maffei,et al.  A high performance direct ammonia fuel cell using a mixed ionic and electronic conducting anode , 2008 .

[7]  E. Sciubba.  Beyond thermoeconomics? The concept of Extended Exergy Accounting and its application to the analysis and design of thermal systems , 2001 .

[8]  Ibrahim Dincer,et al.  Exergoeconomic analysis of geothermal district heating systems: A case study , 2007 .

[9]  N. Maffei,et al.  Ammonia fuel cell using doped barium cerate proton conducting solid electrolytes , 2005 .

[10]  Dennis Y.C. Leung,et al.  Mathematical Modelling of Proton‐Conducting Solid Oxide Fuel Cells and Comparison with Oxygen‐Ion‐Conducting Counterpart , 2007 .

[11]  Weishen Yang,et al.  Direct ammonia solid oxide fuel cell based on thin proton-conducting electrolyte , 2008 .

[12]  J. Charland,et al.  A Direct Ammonia Fuel Cell Using Barium Cerate Proton Conducting Electrolyte Doped With Gadolinium and Praseodymium , 2007 .

[13]  José Luz Silveira,et al.  Thermoeconomic analysis method for optimization of combined heat and power systems—part II , 2003 .

[14]  Ibrahim Dincer,et al.  Exergoeconomic analysis of power plants operating on various fuels , 2003 .

[15]  Robert J. Braun.  Techno-Economic Optimal Design of Solid Oxide Fuel Cell Systems for Micro-Combined Heat and Power Applications in the U.S. , 2010 .

[16]  Ibrahim Dincer,et al.  Thermodynamic analysis of a PEM fuel cell power system , 2005 .

[17]  K. Wark,et al.  Advanced thermodynamics for engineers , 1994 .

[18]  Jacob N. Chung,et al.  Numerical modeling of hydrogen production from ammonia decomposition for fuel cell applications , 2010 .

[19]  D.-J. Kim,et al.  Exergetic and thermoeconomic analyses of power plants , 2003 .

[20]  Ibrahim Dincer,et al.  Exergoeconomic analysis of a vehicular PEM fuel cell system , 2007 .

[21]  Feridun Hamdullahpur,et al.  Conceptual Design of a Novel Ammonia-Fuelled Portable Solid Oxide Fuel Cell System , 2010 .

[22]  E. Baniasadi,et al.  Fuel cell energy generation and recovery cycle analysis for residential application , 2010 .

[23]  Jan Van herle,et al.  Ammonia as a fuel in solid oxide fuel cells , 2003 .

[24]  D. Leung,et al.  Electrochemical modeling of ammonia-fed solid oxide fuel cells based on proton conducting electrolyte , 2008 .

[25]  D. Leung,et al.  Thermodynamic analysis of ammonia fed solid oxide fuel cells: Comparison between proton-conducting electrolyte and oxygen ion-conducting electrolyte , 2008 .