Selection of suitable operating conditions for planar anode-supported direct-internal-reforming solid-oxide fuel cell

Thermal modeling and efficiency assessment of an integrated biomass gasification and solid oxide fuel cell system

“…The values of C 1 and C 2 are given in Table 6, based on the data provided by Wongchanapai [47], for each of the fuel cell component. Values of L k for the different components, required for the calculation of ohmic losses, are listed in Table 7.…”

Performance evaluation of an integrated small-scale SOFC-biomass gasification power generation system

“…1. A 1D model of direct internal reforming planar SOFC, capable of internal reforming of the methane in the syngas into hydrogen, was developed in the previous work by the authors [14] and applied to this study. On the other hand, thermodynamic equilibrium model is used for biomass gasification.…”

“…SOFC, Gasifier, HXs, burner, HRSG, air and fuel compressors, were thermodynamically modeled under steady-state operations. Mass and energy balances were applied for each component using lumped models, which consider each component as a control volume with the exception of a 1D SOFC model [14]. The assumptions made for developing the system model are given as: (i) all system components operate under steady-state conditions; (ii) all gas mixtures behave as ideal gases; (iii) heat losses from SOFC and gasifier to the environment are negligible and heat losses in HXs and the HRSG are assumed 2% of heat transferred; (iv) chemical reactions are assumed to be in equilibrium.…”

“…The direct internal reforming SOFC model developed in the recent work by the authors [14] is applied to the present system analysis. The model is capable of capturing the distribution of the local temperatures, species concentrations, current density, and polarization losses in streamwise direction.…”

“…activation (V act ), ohmic (V ohm ) and concentration (V conc ) losses. However, the details of the direct internal reforming planar SOFC has been the subject of earlier work [14] and will not be described here. The SOFC stack's power output is:…”