FgrUPuZrLM

Fission gas release model for UPuZr metal fuel transplanted from the LIFE-METAL code

Description

FgrUPuZrLM is a fission gas release model for UPuZr metallic fuel based on the current porosity of the fuel, the current retained fission gas concentration in the fuel, and the fuel temperature (automatic differentiation version). This fission gas release model was originally established and parameterized for the LIFE-METAL fuel performance code (Yacout and Billone, 2015). The model was developed, parameterized, and implemented into the BISON code by Argonne National Laboratory (an implementation report will be cited in a future version).

In this fission gas release model, the fission gas release rate ( in mol/m-s) is calculated at every time step as the product of the fission gas amount retained in the fuel ( in mol/m) and a fission gas release factor ( in s): (1) The gas release factor is calculated using the following equation: (2) (3) where is the atomic percent burnup, () is a pre-exponential coefficient, (J/mol) is the activation energy for gas released from non-interconnected bubbles, (J/mol-K) is the gas constant, () is the temperature, is a dimensionless constant to account for the porosity effect on gas release before interconnection, is the porosity of the fuel, is the gas swelling strain, is the threshold gas swelling strain for bubble interconnetion, and () is a constant determining the enhanced gas release rate after bubble interconnection.

Example Input Syntax

[Materials<<<{"href": "../../syntax/Materials/index.html"}>>>]
  [fission_gas_behavior]
    type = FgrUPuZrLM<<<{"description": "Fission gas release model for UPuZr metal fuel transplanted from the LIFE-METAL code", "href": "FgrUPuZrLM.html"}>>>
    temperature<<<{"description": "The coupled temperature (K)"}>>> = temp
    outputs<<<{"description": "Vector of output names where you would like to restrict the output of variables(s) associated with this object"}>>> = all
    output_properties<<<{"description": "List of material properties, from this material, to output (outputs must also be defined to an output type)"}>>> = 'fis_gas_prod fis_gas_rel fis_gas_ret'
  []
[]
(test/tests/solid_mechanics/upuzr_gas_LM/calc_rad.i)

Input Parameters

  • temperatureThe coupled temperature (K)

    C++ Type:std::vector<VariableName>

    Unit:(no unit assumed)

    Controllable:No

    Description:The coupled temperature (K)

Required Parameters

  • Qg_R10200Activation energy of gas release rate expression

    Default:10200

    C++ Type:double

    Unit:(no unit assumed)

    Controllable:No

    Description:Activation energy of gas release rate expression

  • blockThe list of blocks (ids or names) that this object will be applied

    C++ Type:std::vector<SubdomainName>

    Controllable:No

    Description:The list of blocks (ids or names) that this object will be applied

  • boundaryThe list of boundaries (ids or names) from the mesh where this object applies

    C++ Type:std::vector<BoundaryName>

    Controllable:No

    Description:The list of boundaries (ids or names) from the mesh where this object applies

  • burnupburnupBurnup material property name

    Default:burnup

    C++ Type:MaterialPropertyName

    Unit:(no unit assumed)

    Controllable:No

    Description:Burnup material property name

  • c_g7Porosity factor coefficient

    Default:7

    C++ Type:double

    Unit:(no unit assumed)

    Controllable:No

    Description:Porosity factor coefficient

  • computeTrueWhen false, MOOSE will not call compute methods on this material. The user must call computeProperties() after retrieving the MaterialBase via MaterialBasePropertyInterface::getMaterialBase(). Non-computed MaterialBases are not sorted for dependencies.

    Default:True

    C++ Type:bool

    Controllable:No

    Description:When false, MOOSE will not call compute methods on this material. The user must call computeProperties() after retrieving the MaterialBase via MaterialBasePropertyInterface::getMaterialBase(). Non-computed MaterialBases are not sorted for dependencies.

  • constant_onNONEWhen ELEMENT, MOOSE will only call computeQpProperties() for the 0th quadrature point, and then copy that value to the other qps.When SUBDOMAIN, MOOSE will only call computeQpProperties() for the 0th quadrature point, and then copy that value to the other qps. Evaluations on element qps will be skipped

    Default:NONE

    C++ Type:MooseEnum

    Options:NONE, ELEMENT, SUBDOMAIN

    Controllable:No

    Description:When ELEMENT, MOOSE will only call computeQpProperties() for the 0th quadrature point, and then copy that value to the other qps.When SUBDOMAIN, MOOSE will only call computeQpProperties() for the 0th quadrature point, and then copy that value to the other qps. Evaluations on element qps will be skipped

  • declare_suffixAn optional suffix parameter that can be appended to any declared properties. The suffix will be prepended with a '_' character.

    C++ Type:MaterialPropertyName

    Unit:(no unit assumed)

    Controllable:No

    Description:An optional suffix parameter that can be appended to any declared properties. The suffix will be prepended with a '_' character.

  • epsilon_c0.33Gas release threshold strain

    Default:0.33

    C++ Type:double

    Unit:(no unit assumed)

    Controllable:No

    Description:Gas release threshold strain

  • f_coeff0.05Swelling strain coefficient

    Default:0.05

    C++ Type:double

    Unit:(no unit assumed)

    Controllable:No

    Description:Swelling strain coefficient

  • fission_ratefission_rateFission rate material property name

    Default:fission_rate

    C++ Type:MaterialPropertyName

    Unit:(no unit assumed)

    Controllable:No

    Description:Fission rate material property name

  • fractional_yield0.3017fraction yield of fission gas atoms per fission

    Default:0.3017

    C++ Type:double

    Unit:(no unit assumed)

    Controllable:No

    Description:fraction yield of fission gas atoms per fission

  • fuel_melting_functionThe optional fuel melting function that is used for transient simulations (1.0 fully solid; 0.0 fully melting).

    C++ Type:FunctionName

    Unit:(no unit assumed)

    Controllable:No

    Description:The optional fuel melting function that is used for transient simulations (1.0 fully solid; 0.0 fully melting).

  • gas_release_scale_factor1Fission gas release rate scale factor

    Default:1

    C++ Type:double

    Unit:(no unit assumed)

    Controllable:No

    Description:Fission gas release rate scale factor

  • porosityporosityPorosity material property name

    Default:porosity

    C++ Type:MaterialPropertyName

    Unit:(no unit assumed)

    Controllable:No

    Description:Porosity material property name

  • porosity_threshold0.1Porosity threshold related to porosity factor before interconnection

    Default:0.1

    C++ Type:double

    Unit:(no unit assumed)

    Controllable:No

    Description:Porosity threshold related to porosity factor before interconnection

  • preexponential_coeff2.7Pre-exponetional coefficient of gas release rate expression

    Default:2.7

    C++ Type:double

    Unit:(no unit assumed)

    Controllable:No

    Description:Pre-exponetional coefficient of gas release rate expression

Optional Parameters

  • control_tagsAdds user-defined labels for accessing object parameters via control logic.

    C++ Type:std::vector<std::string>

    Controllable:No

    Description:Adds user-defined labels for accessing object parameters via control logic.

  • enableTrueSet the enabled status of the MooseObject.

    Default:True

    C++ Type:bool

    Controllable:Yes

    Description:Set the enabled status of the MooseObject.

  • implicitTrueDetermines whether this object is calculated using an implicit or explicit form

    Default:True

    C++ Type:bool

    Controllable:No

    Description:Determines whether this object is calculated using an implicit or explicit form

  • seed0The seed for the master random number generator

    Default:0

    C++ Type:unsigned int

    Controllable:No

    Description:The seed for the master random number generator

  • use_displaced_meshFalseWhether or not this object should use the displaced mesh for computation. Note that in the case this is true but no displacements are provided in the Mesh block the undisplaced mesh will still be used.

    Default:False

    C++ Type:bool

    Controllable:No

    Description:Whether or not this object should use the displaced mesh for computation. Note that in the case this is true but no displacements are provided in the Mesh block the undisplaced mesh will still be used.

Advanced Parameters

  • output_propertiesList of material properties, from this material, to output (outputs must also be defined to an output type)

    C++ Type:std::vector<std::string>

    Controllable:No

    Description:List of material properties, from this material, to output (outputs must also be defined to an output type)

  • outputsnone Vector of output names where you would like to restrict the output of variables(s) associated with this object

    Default:none

    C++ Type:std::vector<OutputName>

    Controllable:No

    Description:Vector of output names where you would like to restrict the output of variables(s) associated with this object

Outputs Parameters

  • prop_getter_suffixAn optional suffix parameter that can be appended to any attempt to retrieve/get material properties. The suffix will be prepended with a '_' character.

    C++ Type:MaterialPropertyName

    Unit:(no unit assumed)

    Controllable:No

    Description:An optional suffix parameter that can be appended to any attempt to retrieve/get material properties. The suffix will be prepended with a '_' character.

  • use_interpolated_stateFalseFor the old and older state use projected material properties interpolated at the quadrature points. To set up projection use the ProjectedStatefulMaterialStorageAction.

    Default:False

    C++ Type:bool

    Controllable:No

    Description:For the old and older state use projected material properties interpolated at the quadrature points. To set up projection use the ProjectedStatefulMaterialStorageAction.

Material Property Retrieval Parameters

Input Files

References

  1. AM Yacout and MC Billone. Current status of the life fast reactors fuel performance codes. In Fast Reactors and Related Fuel Cycles: Safe Technologies and Sustainable Scenarios (FR13). COMPANION CD-ROM. Proceedings of an International Conference. 2015.[BibTeX]