Numerical modeling of interconnect flow channel design and thermal stress analysis of a planar anode-supported solid oxide fuel cell stack

Wei, S. S.; Wang, T. H.; Wu, Jong‐Shinn

doi:10.1016/j.energy.2014.03.052

Cited by 80 publications

(37 citation statements)

References 31 publications

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“…4 that the fuel cell performance at 1023 K is better than that obtained at 923 K. This is because ohmic overpotential drops dramatically with the enhancement of the operating temperature. This trend is also consistent with other experimental and simulation results reported elsewhere [14,20]. Fig.…”

Section: Effect Of Cell Operating Temperaturesupporting

confidence: 93%

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Mathematical modelling and experimental validation of an anode-supported tubular solid oxide fuel cell for heat and power generation

Tonekabonimoghadam

Akikur

Hussain

et al. 2015

Energy

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Section: Effect Of Cell Operating Temperaturesupporting

confidence: 93%

“…Some thermal stresses are also observed in the system and these may be caused by a mismatch between the coefficients of thermal expansion of the construction materials [14,25].…”

Section: Effect Of Cell Operating Temperaturementioning

confidence: 98%

Mathematical modelling and experimental validation of an anode-supported tubular solid oxide fuel cell for heat and power generation

Tonekabonimoghadam

Akikur

Hussain

et al. 2015

Energy

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“…The results obtained by [17] revealed that the use of Grancrete cell support reduced the maximum principal stress of the planar fuel cell and the calculated maximum von Mises stress was lower that the yield strength of stainless steel. Based on the evidence that it was possible to optimize construction of the planar SOFC stack, a similar approach was developed and is presented in this paper with respect to a microtubular Solid Oxide Fuel Cell stack.…”

Section: Introductionmentioning

confidence: 86%

“…The key feature of the model consists in numerical coupling of the three-dimensional Computational Fluid Dynamics technique, used for an accurate evaluation of the flow and temperature distributions inside the mSOFC stack, with Computational Structural Mechanics Finite Element Method (FEM) analysis that allows to predict thermal stresses. A similar approach was applied by Wei et al [17], Yakabe et al [8,12], Nakajo et al [13], Liu et al [18] and Peksen [19,20].…”

Section: Introductionmentioning

confidence: 99%

“…Wei et al [17] estimate thermal stress distributions in a new design of a hexagonal stack consisting of planar anode-supported Solid Oxide Fuel Cells. The results obtained by [17] revealed that the use of Grancrete cell support reduced the maximum principal stress of the planar fuel cell and the calculated maximum von Mises stress was lower that the yield strength of stainless steel.…”

Section: Introductionmentioning

confidence: 99%

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Numerical analysis of thermal stresses in a new design of microtubular stack

2015

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Microtubular Solid Oxide Fuel Cells (mSOFCs) are one of the most promising and efficient devices that convert chemical energy of fuels into electrical energy. However, mSOFC stacks work at high operating temperature over 650°C, which leads to thermally induced mechanical stresses and in consequence may cause failure of stack components. In order to reduce the local thermal gradients and prevent high stresses in the stack components, it is desirable to study the effect of stack design on its performance. For this purpose a 3D numerical approach was developed to estimate thermal expansion of fuel cell inside an mSOFC stack and to reduce the associated experimental efforts and costs. Initially, a Computational Fluid Dynamics (CFD) model was used to calculate the temperature and species concentration profiles. During the second modeling step temperature profiles were used in the thermo-mechanical model to calculate the thermal stress distribution in the mSOFC stack. The results maximum thermal axial elongation that equals 1.4 mm for the mSOFC stack. The modelled maximum radial elongation was equal to 0.5 mm in the contact areas of the cylindrical housing and manifolds on the fuel inlet side.

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High Temperature Solid Oxide Electrolysis – Technology and Modeling

Mueller,

Klinsmann,

Sauter

et al. 2023

Chemie Ingenieur Technik

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In the global quest to renounce from fossil fuels, a large demand for the renewable production of hydrogen via water electrolysis exists. In this context, the solid oxide electrolyzer (SOE) is an interesting technology due to its high efficiency resulting from elevated operating temperatures of up to 900 °C. Physical modeling plays a vital role in the development of SOEs, as it lowers experimental costs and provides insight where measurements reach limits. A main challenge for modeling SOEs is the multitude of physical effects, occurring and interacting on various spatial and temporal scales. This requires assumptions and simplifications, particularly when increasing scope and dimensions of a model. In this review, we discuss the different approaches currently available in literature.

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Numerical modeling of interconnect flow channel design and thermal stress analysis of a planar anode-supported solid oxide fuel cell stack

Cited by 80 publications

References 31 publications

Mathematical modelling and experimental validation of an anode-supported tubular solid oxide fuel cell for heat and power generation

Mathematical modelling and experimental validation of an anode-supported tubular solid oxide fuel cell for heat and power generation

Numerical analysis of thermal stresses in a new design of microtubular stack

High Temperature Solid Oxide Electrolysis – Technology and Modeling

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