Further development of continuum FEM simulation for ceramic breeder pebble bed unit thermomechanics

Tucker, J. T.; Zhang, Chunbo Sam; Ying, Alice; Abdou, Mohamed

doi:10.1109/sofe.2013.6635428

Cited by 4 publications

(4 citation statements)

References 4 publications

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“…The parameters listed above serve for the implementation of said model, using the finite element method (FEM). Further information about possible continuum models and relevant parameters can be gathered from the works of Bühler, Tucker et al and Kamlah et al [9,10,11].…”

Section: Resultsmentioning

confidence: 99%

Packed bed heat storage: Continuum mechanics model and validation

Knödler¹,

Dreißigacker²,

Zunft³

2016

AIP Conference Proceedings

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Section: Resultsmentioning

confidence: 99%

Packed bed heat storage: Continuum mechanics model and validation

Knödler¹,

Dreißigacker²,

Zunft³

2016

AIP Conference Proceedings

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“…However, they require the identification and implementation of various parameters to appropriately model packed bed mechanics. Further information about feasible continuum models and relevant parameters can be gathered from multiple sources [3][4][5]. Key parameters required for a continuum model approach can be identified and determined by a basic test procedure utilized for characterizing soils and granular media [6].…”

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Thermo-Mechanical Investigations of Packed Beds for High Temperature Heat Storage: Uniaxial Compression Test Experiments and Particle Discrete Simulations

Knödler

2019

Applied Sciences

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Thermal energy storage (TES) systems are central elements for various types of new power plant concepts and industrial processes. Depending on the specific application, energy storage systems based on sensible heat transfer with packed beds as storage inventory are a promising storage technology. Due to thermal expansion and shrinking of the packed bed’s particles during cyclic thermal charging and discharging, high technical risks arise and possibly lead to material failure. In order to accurately design the TES, suitable tools for calculating thermo-mechanical induced forces and stresses are mandatory. For this purpose, different model approaches and tools are available. Continuum models offer time-efficient simulation results but need proper parametrization, which usually requires extensive experimental effort. This paper focuses on laying the groundwork on how to facilitate the effort for the parametrization of a continuum model by deploying a discrete particle model in order to simulate soil mechanical experiments. In this context, a specifically designed test rig is introduced, which is applied for the validation of the discrete particle model.

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“…The effective Young's Modulus is a key parameter when describing a packed bed as a continuum and provides insight into the mechanical behavior of the packed bed. Further information about continuum models and relevant parameters can be gathered from multiple sources [11,18,19].…”

Section: Mechanical Packed Bed Modellingmentioning

confidence: 99%

Thermo-Mechanical Investigations of Packed Beds for High Temperature Heat Storage: Continuum Modeling

Knödler

2019

Applied Sciences

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Thermal energy storage (TES) systems are central elements for various types of new power plant concepts, whereat packed beds represent a promising storage inventory option. Due to thermal expansion and shrinking of the packed bed’s particles during cyclic thermal charging and discharging operation, high technical risks arise, and possibly lead to material failure. In order to accurately design the heat storage system, suitable tools for calculating induced forces and stresses are mandatory. Continuum models offer time efficient simulation results, but are in need of effective packed bed parameters. This paper introduces a methodology for applying a simplified continuum model and presents first results for an exemplarily large-scale application.

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Further development of continuum FEM simulation for ceramic breeder pebble bed unit thermomechanics

Cited by 4 publications

References 4 publications

Packed bed heat storage: Continuum mechanics model and validation

Packed bed heat storage: Continuum mechanics model and validation

Thermo-Mechanical Investigations of Packed Beds for High Temperature Heat Storage: Uniaxial Compression Test Experiments and Particle Discrete Simulations

Thermo-Mechanical Investigations of Packed Beds for High Temperature Heat Storage: Continuum Modeling

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