Numerical Comparison of Planar and Micro-Tubular Solid Oxide Fuel Cells

Öz

Solid oxide fuel cell (SOFC) is a highly efficient power generation system that can be designed in many different geometries including planar and tubular types of fuel cell. Although their operating performance is based on the same principles, parameters may be unique for each geometry. This study investigates numerically effects of cell configuration on performance by developing a finite element method (FEM) based SOFC models. The effects of configuration on the fuel cell are investigated in terms of voltage, the average cell current density, and the average cell power. These effects are illustrated with polarization and power curves by using COMSOL software. As the most convenient results of this study, although both types have their own advantages, it can be concluded that the performance of the SOFC increases with the planar geometry compared to micro-tubular type under the studied operating conditions.

Anahtar Kelimeler

• Planar SOFC,micro-tubular SOFC,performance,numerical analysis

Kaynakça

1. Torabi A., Etsell T. H., Sarkar P., “Dip coating fabrication process for micro-tubular SOFCs”, Solid State Ionics, 192 (1): 372-375,(2010)
2. Mench M.M., “Fuel Cell Engines”,Wiley, USA, 525s, (2008).
3. Nam J.H., Jeon D.H., “A comprehensive micro-scale model for transport and reaction in intermediate temperature solid oxide fuel cells”, Electrochimica Acta, 51 (17), 3446–3460,(2006).
4. Costamagna P, Costa P, Antonucci V., “Micro-modeling of solid oxide fuel cell electrodes”, Electrochimica Acta , 43: 375–94,(1998).
5. Yakabe H., Hishinuma M., Uratani M., Matsuzaki Y., Yasuda I., “Evaluation and modeling of performance of anode-supported solid oxide fuel cell”, Journal of Power Sources, 86 ( 1–2):423–431,(2000).
6. Cui D., Yang C., Huang K., Chen F., “Effects of testing configurations and cell geometries on the performance of a SOFC: A modeling approach”, International Journal of Hydrogen Energy, 35 (19): 10495–10504 (2010).
7. Liu S., Kong W., Lin Z., “Three-dimensional modeling of planar solid oxide fuel cells and the rib design optimization”, Journal of Power Sources, 194 (2): 854-863,(2009).
8. Cui D., Liu L., Dong Y., Cheng M., “Comparison of different current collecting modes of anode supported micro-tubular SOFC through mathematical modeling”, Journal of Power Sources, 174 (1), 246–254, (2007).

9. Serincan M.F., Pasaogullari U., Sammesb N.M., “Effects of operating conditions on the performance of a micro-tubular solid oxide fuel cell (SOFC)”, Journal of Power Sources, 192 (2), 414–422, (2009).
10. Akhtar N., Decent S., Kendall K., “A parametric analysis of a microtubular, single-chamber solid oxide fuel cell (MT-SC-SOFC)”, International Journal of Hydrogen Energy, 36 (1): 765-772,( 2011).
11. Aman A., Gentile R., Xu Y., Orlovskaya N.,” Parametric Study of Electrolyte-Supported Planar Button Solid Oxide Fuel Cell”, Comsol Reference Guide (2012).
12. Homel M, Gür TM, Koh JH, Virkar AV. “Carbon monoxide-fueled solid oxide fuel cell”, Journal of Power Sources,195(19):6367-6372, (2010).
13. Ilbas M, Kümük B. “Numerical modelling of a cathode-supported solid oxide fuel cell (SOFC) in comparison with an electrolyte-supported model”. Journal of the Energy Institute, 92 (3): 682-692,(2019).
14. Ilbas M, Kümük B. “Modelling and analysis of a model solid oxide fuel cell running on low calorific coal gases”. International Journal of Hydrogen Energy, 45 (5): 3577-3583, (2020).
15. Ilbas M, Kümük B, Alemu MA, Arslan B. “Numerical investigation of a direct ammonia tubular solid oxide fuel cell in comparison with hydrogen.”, International Journal of Hydrogen Energy, In Press.