FuelCellShop::Mixture::IdealGasMixture Class Reference

Implementation of the ideal gas law for mixtures. More...

#include <ideal_gas.h>

Public Member Functions
	IdealGasMixture ()
	Constructor.
	~IdealGasMixture ()
	Destructor.
void	set_pT_xi_and_gases (const double p, const double T, const std::vector< double > xv, std::vector< FuelCellShop::Material::PureGas * > gases)
	Function to set the temperature in K, pressure in Pa of the gas and the molar fractions.
void	set_cT_xi_and_gases (const double c, const double T, const std::vector< double > xv, std::vector< FuelCellShop::Material::PureGas * > gases)
	Function to modify the temperature in K and concentration in mol/m3 of the gas.
void	set_pv_T_and_gases (const std::vector< double > pv, const double T, std::vector< FuelCellShop::Material::PureGas * > gases)
	Function to set the temperature in K, pressure in Pa of the gas and the molar fractions.
void	set_cv_T_and_gases (const std::vector< double > cv, const double T, std::vector< FuelCellShop::Material::PureGas * > gases)
	Function to modify the temperature in K and concentration in mol/m3 of the gas.
double	get_T ()
	Member function used to return the temperature of the gas in Kelvin.
double	get_p ()
	Member function used to return the total pressure of the gas mixture in Pascal.
std::vector< double >	get_pi ()
	Member function used to return the partial pressure of the components in the gas in Pascal.
double	get_p_atm ()
	Member function used to return the pressure of the gas mixture in atm.
double	get_c ()
	Member function used to return the concentration of the gas in mol/m3.
std::vector< double >	get_ci ()
	Member function used to return the concentration of the components in the gas in mol/m3.
double	get_density ()
	Member function used to return the density of the gas in kg/m3.
std::vector< double >	get_densityi ()
	Member function used to return the partial density of the gas in kg/m3.
std::vector< double >	get_xi ()
	Member function used to return the mole fraction of the components in the gas mixture.
dealii::SmartPointer < FuelCellShop::Material::PureGas >	get_gas (const unsigned int index)
	Member function used to return a pointer to the gas type stored in position index.
void	print_properties_to_screen ()
	Member function that prints to screen p, T and c.
void	test ()
	Member function used to test class is working NOTE: The test is not complete at this point since it does not test all set_* options.

Private Attributes
bool	initialized
	Bool element that let's me know if the class has been initialized.
double	temp
	Temperature of the gas, [K].
double	press
	Pressure of the gas, [Pa].
double	conc
	Concentration of the gas, [mol/m3].
double	density
	Density of the gas, [kg/m3].
double	M_mix
	Molar mass of the mixture [g/mol mix].
std::vector< double >	pressv
	Pressure of the gas, [Pa].
std::vector< double >	concv
	Concentration of the gas, [mol/m3].
std::vector< double >	densityv
	Density of the gas, [kg/m3].
std::vector< SmartPointer < FuelCellShop::Material::PureGas > >	gas_types
	Vector containing pointers to all gas species.

Detailed Description

Implementation of the ideal gas law for mixtures.

This class once initialized using several of the set_xx options will return partial pressures, concentrations for each species and mole fractions.

Usage details

In order to use this class, you first need to use one of the set_* options in order to initialize all the variables that define an ideal gas. In the set_* member function all properties are computed. If you would like to change, temperature, type of gas, etc. you will need to call this routine again. Once the set routine has been called, then you can request any gas property using get_* routines.

FuelCellShop::Material::Oxygen oxygen;
FuelCellShop::Material::Nitrogen nitrogen;
std::vector<FuelCellShop::Material::PureGas* > gasv;
gasv.push_back(&oxygen);
gasv.push_back(&nitrogen);
// NOTE: The order is important. The FuelCellShop::Material::PureGas MUST be created before the
// object of type IdealGasMixuture otherwise the gases would be destroyed first at the end of the
// program leading to SmartPointer errors!!!
FuelCellShop::Mixture::IdealGasMixture marc;
std::vector<double> xv;
xv.push_back(0.5);
xv.push_back(0.5);
marc.set_pT_xi_and_gases(101325, 298, xv, gasv);
marc.print_properties_to_screen();

Author

M. Secanell

Date

2012

Constructor & Destructor Documentation

FuelCellShop::Mixture::IdealGasMixture::IdealGasMixture ( )

inline

Constructor.

FuelCellShop::Mixture::IdealGasMixture::~IdealGasMixture ( )

inline

Destructor.

Member Function Documentation

double FuelCellShop::Mixture::IdealGasMixture::get_c ( )

inline

Member function used to return the concentration of the gas in mol/m3.

References conc, and initialized.

Referenced by test().

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std::vector<double> FuelCellShop::Mixture::IdealGasMixture::get_ci ( )

inline

Member function used to return the concentration of the components in the gas in mol/m3.

References concv, and initialized.

Referenced by test().

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double FuelCellShop::Mixture::IdealGasMixture::get_density ( )

inline

Member function used to return the density of the gas in kg/m3.

References density, and initialized.

Referenced by test().

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std::vector<double> FuelCellShop::Mixture::IdealGasMixture::get_densityi ( )

inline

Member function used to return the partial density of the gas in kg/m3.

References densityv, and initialized.

dealii::SmartPointer<FuelCellShop::Material::PureGas> FuelCellShop::Mixture::IdealGasMixture::get_gas ( const unsigned int  index )

inline

Member function used to return a pointer to the gas type stored in position index.

References gas_types, and initialized.

Referenced by test().

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double FuelCellShop::Mixture::IdealGasMixture::get_p ( )

inline

Member function used to return the total pressure of the gas mixture in Pascal.

References initialized, and press.

Referenced by test().

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double FuelCellShop::Mixture::IdealGasMixture::get_p_atm ( )

inline

Member function used to return the pressure of the gas mixture in atm.

References initialized, and press.

std::vector<double> FuelCellShop::Mixture::IdealGasMixture::get_pi ( )

inline

Member function used to return the partial pressure of the components in the gas in Pascal.

References initialized, and pressv.

double FuelCellShop::Mixture::IdealGasMixture::get_T ( )

inline

Member function used to return the temperature of the gas in Kelvin.

References initialized, and temp.

Referenced by test().

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std::vector<double> FuelCellShop::Mixture::IdealGasMixture::get_xi ( )

inline

Member function used to return the mole fraction of the components in the gas mixture.

References initialized, press, and pressv.

void FuelCellShop::Mixture::IdealGasMixture::print_properties_to_screen ( )

inline

Member function that prints to screen p, T and c.

References conc, concv, density, densityv, initialized, press, pressv, and temp.

void FuelCellShop::Mixture::IdealGasMixture::set_cT_xi_and_gases ( const double  c, const double  T, const std::vector< double >  xv, std::vector< FuelCellShop::Material::PureGas * >  gases  )

inline

Function to modify the temperature in K and concentration in mol/m3 of the gas.

References conc, concv, density, densityv, gas_types, initialized, M_mix, press, pressv, Constants::R(), and temp.

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void FuelCellShop::Mixture::IdealGasMixture::set_cv_T_and_gases ( const std::vector< double >  cv, const double  T, std::vector< FuelCellShop::Material::PureGas * >  gases  )

inline

Function to modify the temperature in K and concentration in mol/m3 of the gas.

References conc, concv, density, densityv, gas_types, initialized, M_mix, press, pressv, Constants::R(), and temp.

Referenced by test().

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void FuelCellShop::Mixture::IdealGasMixture::set_pT_xi_and_gases ( const double  p, const double  T, const std::vector< double >  xv, std::vector< FuelCellShop::Material::PureGas * >  gases  )

inline

Function to set the temperature in K, pressure in Pa of the gas and the molar fractions.

References conc, concv, density, densityv, gas_types, initialized, M_mix, press, pressv, Constants::R(), and temp.

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void FuelCellShop::Mixture::IdealGasMixture::set_pv_T_and_gases ( const std::vector< double >  pv, const double  T, std::vector< FuelCellShop::Material::PureGas * >  gases  )

inline

Function to set the temperature in K, pressure in Pa of the gas and the molar fractions.

References conc, concv, density, densityv, gas_types, initialized, M_mix, press, pressv, Constants::R(), and temp.

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void FuelCellShop::Mixture::IdealGasMixture::test ( )

inline

Member function used to test class is working NOTE: The test is not complete at this point since it does not test all set_* options.

References get_c(), get_ci(), get_density(), get_gas(), get_p(), get_T(), and set_cv_T_and_gases().

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Member Data Documentation

double FuelCellShop::Mixture::IdealGasMixture::conc

private

Concentration of the gas, [mol/m3].

Referenced by get_c(), print_properties_to_screen(), set_cT_xi_and_gases(), set_cv_T_and_gases(), set_pT_xi_and_gases(), and set_pv_T_and_gases().

std::vector<double> FuelCellShop::Mixture::IdealGasMixture::concv

private

Concentration of the gas, [mol/m3].

Referenced by get_ci(), print_properties_to_screen(), set_cT_xi_and_gases(), set_cv_T_and_gases(), set_pT_xi_and_gases(), and set_pv_T_and_gases().

double FuelCellShop::Mixture::IdealGasMixture::density

private

Density of the gas, [kg/m3].

Referenced by get_density(), print_properties_to_screen(), set_cT_xi_and_gases(), set_cv_T_and_gases(), set_pT_xi_and_gases(), and set_pv_T_and_gases().

std::vector<double> FuelCellShop::Mixture::IdealGasMixture::densityv

private

Density of the gas, [kg/m3].

Referenced by get_densityi(), print_properties_to_screen(), set_cT_xi_and_gases(), set_cv_T_and_gases(), set_pT_xi_and_gases(), and set_pv_T_and_gases().

std::vector<SmartPointer<FuelCellShop::Material::PureGas> > FuelCellShop::Mixture::IdealGasMixture::gas_types

private

Vector containing pointers to all gas species.

Referenced by get_gas(), set_cT_xi_and_gases(), set_cv_T_and_gases(), set_pT_xi_and_gases(), and set_pv_T_and_gases().

bool FuelCellShop::Mixture::IdealGasMixture::initialized

private

Bool element that let's me know if the class has been initialized.

Referenced by get_c(), get_ci(), get_density(), get_densityi(), get_gas(), get_p(), get_p_atm(), get_pi(), get_T(), get_xi(), print_properties_to_screen(), set_cT_xi_and_gases(), set_cv_T_and_gases(), set_pT_xi_and_gases(), and set_pv_T_and_gases().

double FuelCellShop::Mixture::IdealGasMixture::M_mix

private

Molar mass of the mixture [g/mol mix].

Referenced by set_cT_xi_and_gases(), set_cv_T_and_gases(), set_pT_xi_and_gases(), and set_pv_T_and_gases().

double FuelCellShop::Mixture::IdealGasMixture::press

private

Pressure of the gas, [Pa].

Referenced by get_p(), get_p_atm(), get_xi(), print_properties_to_screen(), set_cT_xi_and_gases(), set_cv_T_and_gases(), set_pT_xi_and_gases(), and set_pv_T_and_gases().

std::vector<double> FuelCellShop::Mixture::IdealGasMixture::pressv

private

Pressure of the gas, [Pa].

Referenced by get_pi(), get_xi(), print_properties_to_screen(), set_cT_xi_and_gases(), set_cv_T_and_gases(), set_pT_xi_and_gases(), and set_pv_T_and_gases().

double FuelCellShop::Mixture::IdealGasMixture::temp

private

Temperature of the gas, [K].

Referenced by get_T(), print_properties_to_screen(), set_cT_xi_and_gases(), set_cv_T_and_gases(), set_pT_xi_and_gases(), and set_pv_T_and_gases().

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The documentation for this class was generated from the following file:

• ideal_gas.h