This function generates a PEMFC grid including gas diffusion and catalyst layers. More...

#include <geometries.h>

Inheritance diagram for FuelCellShop::Geometry::Pemfc< dim >:

Collaboration diagram for FuelCellShop::Geometry::Pemfc< dim >:

Public Member Functions
	Pemfc (const bool create_replica)
	PROTOTYPE constructor.

virtual void	generate_grid (Triangulation< dim > &triangulation) const
	This function builds a grid for a standard PEMFC with gas diffusion layers (GDL) and catalyst layers (CL)

Public Member Functions inherited from FuelCellShop::Geometry::GridBase< dim >
unsigned int	get_material_id (ParameterHandler &param, const std::string material) const
	Return material id.

virtual unsigned int	get_material_id (const std::string) const
	Return material id.

unsigned int	get_boundary_id (ParameterHandler &param, const std::string boundary) const
	Return boundary id.

unsigned int	get_boundary_id (const std::string) const
	Return boundary id.

void	output_grid (const Triangulation< dim > &triangulation, const std::string filename) const
	Output the grid.

void	refine_area (Triangulation< dim > &triangulation, const unsigned int material_id)
	Refine a certain part of the grid depending on material_ID given.

std::string	get_mesh_type ()
	Return the type of mesh that is being used.

double	L_channel_c ()
	Return the Width of the cathode gas channel.

double	L_land_c ()
	Return the Width of the cathode current collector.

double	L_gdl_c ()
	Return the Thickness of the cathode gas diffusion layer.

double	L_cat_c ()
	Return the thickness of the cathode catalyst layer.

double	L_mpl_c ()
	Return the Thickness of the cathode microporous layer.

double	L_mem ()
	Return the Thickness of the membrane.

double	L_cat_a ()
	Return the Thickness of the anode catalyst layer.

double	L_mpl_a ()
	Return the Thickness of the anode microporous layer.

double	L_gdl_a ()
	Return the Thickness of the anode gas diffusion layer.

double	L_channel_a ()
	Return the Width of the anode gas channel.

double	L_land_a ()
	Return the Width of the anode current collector.

Static Public Attributes
static const std::string	concrete_name

Protected Member Functions
	Pemfc ()
	Default constructor.

Instance Delivery (function)
virtual boost::shared_ptr < FuelCellShop::Geometry::GridBase < dim > >	create_replica ()
	This member function is used to create an object of type micro porous layer.

Protected Member Functions inherited from FuelCellShop::Geometry::GridBase< dim >
	GridBase ()
	Constructor.

virtual	~GridBase ()
	Destructor.

void	initialize (ParameterHandler &param)

void	print_material_id_and_boundary_id (const Triangulation< dim > &triangulation) const

Static Protected Attributes
Instance Delivery (Data member)
static Pemfc< dim > const *	PROTOTYPE
	Create prototype for the layer.

Additional Inherited Members
Static Public Member Functions inherited from FuelCellShop::Geometry::GridBase< dim >
static void	declare_GridGenerator_parameters (ParameterHandler &param)
	Function used to declare all the data necessary in the parameter files for all GridBase children.

static void	set_GridGenerator_parameters (const std::vector< std::string > &name_dvar, const std::vector< double > &value_dvar, ParameterHandler &param)
	Used for optimization.

static boost::shared_ptr < FuelCellShop::Geometry::GridBase < dim > >	create_GridGenerator (ParameterHandler &param)

Public Attributes inherited from FuelCellShop::Geometry::GridBase< dim >
bool	read_from_file

Protected Types inherited from FuelCellShop::Geometry::GridBase< dim >
typedef std::map< std::string, GridBase< dim > * >	_mapFactory
	This object is used to store all objects of type GasDiffusionLayer.

Static Protected Member Functions inherited from FuelCellShop::Geometry::GridBase< dim >
static _mapFactory *	get_mapFactory ()

Protected Attributes inherited from FuelCellShop::Geometry::GridBase< dim >
std::string	mesh_type_name
	Specify if you would like to load a mesh from file or if you would like a module from the mesh generator Options: File \| Cathode \| Anode \| CathodeMPL \| Pemfc \| PemfcMPL.

std::string	mesh_name
	Name of the mesh file.

std::string	mesh_type
	Specify if it is a UNV file, MSH file, etc.

unsigned int	num_refine
	Initial number of refinements.

double	l_channel_c
	Width of the cathode gas channel.

double	l_land_c
	Width of the cathode current collector.

double	l_gdl_c
	Thickness of the cathode gas diffusion layer.

double	l_mpl_c
	Thickness of the cathode microporous layer.

double	l_cat_c
	Thickness of the cathode catalyst layer.

double	l_mem
	Thickness of the membrane.

double	l_cat_a
	Thickness of the anode catalyst layer.

double	l_mpl_a
	Thickness of the anode microporous layer.

double	l_gdl_a
	Thickness of the anode gas diffusion layer.

double	l_channel_a
	Width of the anode gas channel.

double	l_land_a
	Width of the anode current collector.

unsigned int	num_vert
	Number of cells tall the initial grid.

unsigned int	num_c_GDL
	Number of cells wide cathode gas diffusion layer.

unsigned int	num_c_MPL
	Number of cells wide cathode microporous layer.

unsigned int	num_c_CL
	Number of cells wide cathode catalyst layer.

unsigned int	num_membrane
	Number of cells wide membrane layer.

unsigned int	num_a_CL
	Number of cells wide anode catalyst layer.

unsigned int	num_a_MPL
	Number of cells wide anode microporous layer.

unsigned int	num_a_GDL
	Number of cells wide anode gas diffusion layer.

unsigned int	test_mid
	Material id for test cell (GridTest app)

unsigned int	c_CC_mid
	Material id cathode current collector.

unsigned int	c_GC_mid
	Material id cathode gas channel.

unsigned int	c_GDL_mid
	Material id cathode GDL.

unsigned int	c_MPL_mid
	Material id cathode MPL.

unsigned int	c_CL_mid
	Material id cathode catalyst layer.

unsigned int	membrane_mid
	Material id membrane.

unsigned int	a_CL_mid
	Material id anode catalyst layer.

unsigned int	a_MPL_mid
	Material id anode MPL.

unsigned int	a_GDL_mid
	Material id anode GDL.

unsigned int	a_CC_mid
	Material id anode current collector.

unsigned int	a_GC_mid
	Material id anode gas channel.

unsigned int	c_Ch_GDL_bid
	Boundary id cathode channel and GDL.

unsigned int	c_BPP_GDL_bid
	Boundary id cathode BPP and GDL.

unsigned int	c_GDL_CL_bid
	Boundary id cathode GDL and CL.

unsigned int	c_CL_Membrane_bid
	Boundary id cathode CL and membrane.

unsigned int	c_GDL_MPL_bid
	Boundary id cathode GDL and MPL.

unsigned int	c_MPL_CL_bid
	Boundary id cathode MPL and CL.

unsigned int	a_Membrane_CL_bid
	Boundary id anode membrane and CL.

unsigned int	a_CL_GDL_bid
	Boundary id anode CL and GDL.

unsigned int	a_GDL_BPP_bid
	Boundary id anode GDL and BPP.

unsigned int	a_GDL_Ch_bid
	Boundary id anode GDL and channel.

unsigned int	a_MPL_GDL_bid
	Boundary id anode GDL and MPL.

unsigned int	a_CL_MPL_bid
	Boundary id anode MPL and CL.

double	r_agg
	Agglomerate radius.

double	delta_agg
	Electrolyte thin film thickness.

unsigned int	r_agg_mid
	Porous Agglomerate Material ID.

unsigned int	delta_agg_mid
	Electrolyte Thin Film Material ID.

unsigned int	r_delta_bid
	Boundary ID for agglomerate/thin film boundary.

unsigned int	delta_bid
	Boundary ID for thin film external boundary.

Point< dim >	center
	Centre point of the circular/spherical domain.

Detailed Description

template<int dim>
class FuelCellShop::Geometry::Pemfc< dim >

This function generates a PEMFC grid including gas diffusion and catalyst layers.

The grid contains all material IDs and boundary IDs and default values are shown below in the generate_grid() function.

Constructor & Destructor Documentation

template<int dim>

FuelCellShop::Geometry::Pemfc< dim >::Pemfc ( const bool create_replica )

inline

PROTOTYPE constructor.

Warning: For internal use only. Use create_GridGenerator instead.

References FuelCellShop::Geometry::Pemfc< dim >::concrete_name, and FuelCellShop::Geometry::GridBase< dim >::get_mapFactory().

Here is the call graph for this function:

template<int dim>

FuelCellShop::Geometry::Pemfc< dim >::Pemfc ( )

inlineprotected

Default constructor.

Member Function Documentation

template<int dim>

virtual boost::shared_ptr<FuelCellShop::Geometry::GridBase<dim> > FuelCellShop::Geometry::Pemfc< dim >::create_replica ( )

inlineprotectedvirtual

This member function is used to create an object of type micro porous layer.

Warning: This class MUST be redeclared in every child.

Reimplemented from FuelCellShop::Geometry::GridBase< dim >.

template<int dim>

virtual void FuelCellShop::Geometry::Pemfc< dim >::generate_grid ( Triangulation< dim > & triangulation ) const

virtual

This function builds a grid for a standard PEMFC with gas diffusion layers (GDL) and catalyst layers (CL)

Material ID:

Cathode GDL 2
Cathode CL 4
Membrane 5
Anode CL 6
Anode GDL 8

Boundary ID:
Cathode GDL/BPP 1
Cathode GDL/Gas Channel 2
Cathode GDL/CL 3
Cathode CL/Membrane 4
Anode CL/Membrane 5
Anode CL/GDL 6
Anode GDL/BPP 7
Anode GDL/Gas Channel 8
Symmetric 0

Schematic | | | | | |

BID 2 8

GDL CL Mem CL GDL

MID | 2 | 4 | 5 | 6 | 8 | | | | | | | BID 1 3 4 5 6 7 | | | | | | Cathode Anode

Lengths:
Cathode + Anode GDL 2.0E-2cm
Cathode + Anode CL 1.0E-3cm
Membrane 2.0E-2cm
Gas Channel 0.1cm
Bipolar Plate Rib 0.1cm

Cells:
6 cells tall
Cathode + Anode GDL 4 cells wide
Cathode + Anode CL 1 cell wide
Membrane 4 cells wide

Note: to automatically refine the grid after grid creation set the number of initial refeinements parameter