Thesis for degree: Licentiate of Engineering

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Acknowledgements I am very grateful to my supervisors Professor Bengt Sundén and Docent Jinliang Yuan for their support and guidance during the past two years. Many thanks also to Professor Sundén who made my forthcoming research visit at University of California, Berkeley possible. I also want to extend my thanks to Docent Christoffer Norberg for encouraging me to go on to doctoral studies and for being a teacher role model. To Martin Andersson, I owe particular thanks for knowledgeable guidance and constant encouragement. I want to thank Olof Ekedahl for help and encouragement in general and for all the support with work on Python in particular. The study was made possible through financial support from the Swedish Research Council (Vetenskapsrådet, VR) and the European Research Council (ERC). i
List of publications Journal publications: I. H. Paradis, M. Andersson, J. Yuan, B. Sundén, CFD Modeling: Different Kinetic Approaches for Internal Reforming Reactions in an Anode-Supported SOFC, ASME Journal of Fuel Cell Science and Technology, 8, 031014, 2011 II. III. IV. H. Paradis, M. Andersson, J. Yuan, B. Sundén, Simulation Analysis of Different Alternative Fuels for Potential Utilization in SOFCs, International Journal of Energy Research, 35, DOI: 10.1002/er.1862, 2011 M. Andersson, H. Paradis, J. Yuan, B. Sundén, Modeling Analysis of Different Renewable Fuels in an Anode-Supported SOFC, ASME Journal of Fuel Cell Science and Technology, 8, 031013, 2011 M. Andersson, H. Paradis, J. Yuan B. Sundén, Review of Catalyst Materials and Catalytic Steam Reforming Reactions in SOFC anodes, International Journal of Energy Research, 35, DOI: 10.1002/er.1875, 2011 Conference publications: I. H. Paradis, M. Andersson, J. Yuan, B. Sundén, The Kinetics Effect in SOFCs on Heat and Mass Transfer: Interparticle, Interphase, and Intraparticle Transport, submitted to: ASME 9 th Fuel Cell Science Conference, ESFuelCell2011-54015, 2011 II. III. IV. H. Paradis, M. Andersson, J. Yuan, B. Sundén, CFD Modeling Concerning Different Kinetic Models For Internal Reforming Reactions in an Anode-Supported SOFC, ASME 8 th Fuel Cell Science Conference, FuelCell2010-33045; pp. 55-64, 2010 H. Paradis, M. Andersson, J. Yuan, B. Sundén, Review of Different Renewable Fuels for Potential Utilization in SOFCs, 5 th International Green Energy Conference, 2010 M. Andersson, H. Paradis, J. Yuan, B. Sundén, Modeling Analysis of Different Renewable Fuels in an Anode-Supported SOFC, ASME 8 th Fuel Cell Science Conference, FuelCell2010- 33044; pp. 43-54, 2010 V. M. Andersson, H. Paradis, J. Yuan, B. Sundén, Catalysts Materials and Catalytic Steam Reforming Reactions in SOFC Anodes, 5 th International Green Energy Conference 2010 ii
Page 1 and 2: SOFC modeling from micro to macrosc
Page 3 and 4: Abstract The purpose of this work i
Page 5: katalytisk omvandling av naturgas o
Page 9 and 10: 3.2 Governing equations for the mac
Page 11 and 12: Q source term (heat), W/m3 q heat f
Page 13 and 14: 1 Introduction After some time of d
Page 15 and 16: 2 SOFC modeling at smaller scales T
Page 17 and 18: etween 0.3 and 1.5 mm. In this conf
Page 19 and 20: Volume Method (FVM) which adopt the
Page 21 and 22: 2.3 Lattice Boltzmann method LBM ha
Page 23 and 24: streaming [3]. The concentration ρ
Page 25 and 26: ease the correspondence between the
Page 27 and 28: applicable for a mixture of two spe
Page 29 and 30: Figure 2.6: Effective boundary arra
Page 31 and 32: Table 2.1: Comparison of previous w
Page 33 and 34: Figure 2.7: Schematic illustration
Page 35 and 36: model is presented after the data c
Page 37 and 38: 3.2.1 Mass transport In the electro
Page 39 and 40: where h v is the volume heat transf
Page 41 and 42: Achenbach [43], it was found that t
Page 43 and 44: cathode are assumed to be similar t
Page 45 and 46: (3.48) where, besides the parameter
Page 47 and 48: for an isothermal spherical particl
Page 49 and 50: Velocity carried out to check wheth
Page 51 and 52: Figure 4.4: Velocity field [lu/ts]
Page 53 and 54: Table 4.2: Parameters in the SOFC a
Page 55 and 56: eactions are safely fulfilled. This
Page 57 and 58:
Figure 4.8: Mole fraction distribut
Page 59 and 60:
Table 4.5: Inlet mole fractions for
Page 61 and 62:
Figure 4.12: Mole fraction distribu
Page 63 and 64:
5 Conclusions The physics and the t
Page 65 and 66:
7 References [1] Andersson M., Yuan
Page 67 and 68:
[25] Latt J., Hydrodynamic Limit of
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Thesis for degree: Licentiate of Engineering

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