A thermodynamic analysis of electricity and hydrogen co-production using a solid oxide fuel cell

摘要: This paper presents the electricity and hydrogen co-production concept, a methodology for study of SOFC co-production, simulation results that address impact reformer placement in cycle on system performance. The is based detailed thermodynamic electrochemical analyses systems. A comparison made between six specific configurations, which use fuel cell heat to drive production using both external internal reforming options. plant performance has been evaluated basis methane utilization efficiency each component second law efficiency. show all cases exergy losses (irreversibilities) combustion chamber are most significant cycle. Furthermore, same power output, reformation option higher electrical produces more per unit natural gas supplied. Electrical proposed cycles ranges from 41 44%, while overall (based combined products) 45 80%. case (steam-to-carbon ratio 3.0) had highest (80 45% respectively), but lower (61%), indicating potential improvements. Copyright © 2006 by ASME.