### “Temperature and flow distribution in planar SOFC stacks”

**Authors:**Monica Østenstad and Terje Sira,

**Affiliation:**Institute for Energy Technology (IFE)

**Reference:**1995, Vol 16, No 3, pp. 119-127.

**Keywords:**SOFC, numerical model, design, simulation

**Abstract:**Simulation of a planar Solid Oxide Fuel Cell stack requires the solution of the mass balances of the chemical species, the energy balances, the charge balance and the channel flow equations in order to compute the species concentrations, the temperature distributions, the current density and the channel flows. The unit cell geometry can be taken into account by combining detailed modeling of a unit cell with a homogenized model of a whole stack. In this study the effect of the asymmetric temperature distribution on the channel flows in a conventional cross-flow design has been investigated. The bidirectional cross-flow design is introduced, for which we can show more directional temperature and flow distributions.

PDF (1206 Kb) DOI: 10.4173/mic.1995.3.1

**References:**

[1] ACHENBACH, E. (1994). Status of the TEA-Bench Mark Test 1 on Stack Modelling, The IEA SOFC Newsletter, March 1994, 31-79.

[2] BUNCH, J.R. (1987). The weak and strong stability of algorithms in numerical linear algebra, Linear Algebra and Its Applications, 88, 49-66 doi:10.1016/0024-3795(87)90102-9

[3] COSTA, P., ARATO, E. (1991). Micro and macro-models for simulation of fuel cell devices, Chimica e l´Industria Milan, Italy. 73, 8-9.

[4] FERGUSON, J.R. (1991). Analysis of temperature and current distributions in planar SOFC designs, Proceedings of the Second International Symposium on Solid Oxide Fuel Cells, Athens, Greece, 2 to 5 July, 1991, pp. 305-312.

[5] HARTVIGSEN, J., ELANGOVAN, S., KHANDKAR, A. (1992). Modelling of planar solid oxide fuel cells, Proceedings of the Fuel Cell Seminar in Tucson, Arizona, 29 Nov. to 2 Dec. 1992, pp. 532-535.

[6] KAROLIUSSEN, H. (1993). Matematisk modellering av fastoksid brenselcelle, Doktor ingeniøravhandling, Institutt for teknisk elektrokjemi, Trondheim/Norway, November 1993.

[7] ØSTENSTAD, M. (1990). Numerical Modelling of SOFC-Design Proposal, IFE/Norway Report no. 1FE/KR/F-90/139. November 1990.

[8] ØSTENSTAD, M. (1991). 3-D numerical model for SOFC stacks, Proceedings of 1991 IEA SOFC Workshop, Oslo, Norway, August 18 to 23, 1991, pp. 20-32.

[9] RECHENAUER, C., ACHENBACH, E. (1993). Three-dimensional mathematical modelling of steady and unsteady state conditions for solid oxide fuel cells, Dissertation, Technische Hochschule Aachen.Germany April 1993.

[10] SELMAN, J.R. (1969). Flow to model NG-fueled SOFC systems, Proceedings of IRA workshop on mathematical modelling, Charmey, Switzerland, July 2 to 6, 1989, pp. 31-63.

[11] SELMAN, J R , HERRIN, R., FLÜCK, M., GRUBER, R. (1990). 2-D and 3-D Modelling at the Stack Level, Proceedings of IEA Workshop on Modelling and Evaluation of Advanced SOFC, Hertenstein, Switzerland, June 24 to 29, 1990, pp. 17-45.

[12] SOLHEIM, A. (1993). In-plane diffusion in flat-plate solid oxide fuel cells, Proceedings of the third International Symposium on Solid Oxide Fuel Cells, Honolulu, Hawaii, May 1993, pp. 841-850.

[13] YENTEKAKIS, I.V. (1991). Mathematical modelling of cross-flow, counter-flow and cocurrent-flow solid oxide fuel cells - Theory and Some Preliminary Experiments, Proceedings of the Second International Symposium on Solid Oxide Fuel Cells, Athens, Greece, 2 to 5 July, 1991, pp. 273-280.

**BibTeX:**

@article{MIC-1995-3-1,

title={{Temperature and flow distribution in planar SOFC stacks}},

author={Østenstad, Monica and Sira, Terje},

journal={Modeling, Identification and Control},

volume={16},

number={3},

pages={119--127},

year={1995},

doi={10.4173/mic.1995.3.1},

publisher={Norwegian Society of Automatic Control}

};