PNNL-13501 - Pacific Northwest National Laboratory

Summary and Conclusions
We implemented an electrochemical model for planar
SOFC operations. Theoretical analysis and modeling
calculations on the cell voltage, output power and heat
generation versus current density at various operating
conditions are given. Numerical results and discussions
provided insight into the overall system operation and its
optimization.
Future plans include adding CO to the electrochemistry
code mentioned in the previous sections, developing an
interface code between electrochemistry code and FEA so
that more realistic stress analysis can be performed, and
studying fracture and fatigue to predict the life of planar
SOFC.
Reference
Kim JW, A Virkar, KZ Fung, K Mehta, and S Singhal.
1999. Polarization effects in intermediate temperature,
anode-supported solid oxide fuel cells.” J. Electrochem.
Soc., 146:69-78.
146 FY 2000 Laboratory Directed Research and Development Annual Report
Publications
Chick LA, JW Stevenson, KD Meinhardt, SP Simner,
JE Jaffe, and RE Williford. “Modeling and performance
of anode-supported SOFC.” (in preparation).
Jaffe JE and LA Chick. “Fuel cell elment model with
reforming, shift and CO electrochemistry.” (in
preparation).
Khaleel MA, KP Recknagle, Z Lin, JE Deibler,
LA Chick, and JW Stevenson. “Thermo-mechanical and
electrochemistry modeling of planar SOFC stacks.” (in
preparation).
Khaleel MA and Z Lin. “Electrochemistry modeling of
solid oxide fuel cells.” (in preparation).