Operating conditions on the performances of SOFC fuelled with methane

Abstract

    Both  high  temperature  (HT)  and  intermediate temperature   (IT)   SOFC   performances   are   evaluated   using validated  models  for  the  internally  reformed  (IR)  fuel  cells. Moreover, several SOFC cycles are proposed and investigated. A parametric  study  is  performed  to  evaluate  the  effect  of  various parameters  such  as  turbine  inlet  temperature,  operating  pressure, and  fuel  recirculation  rate  on  the  system  performance.  The  HT-SOFC and the IT-SOFC cycles are simulated in order to evaluate and  compare  their  performances.  The  simulation  results  show that  the  electrical  outputs  from  the  SOFC  and  gas  turbine  are increased    simultaneously    by    increasing    the    turbine    inlet temperature.  Furthermore,  the  efficiency  for  the  IT-SOFC  cycle is found be the higher than the efficiency for the HT-SOFC cycle.