libICEpost.src.thermophysicalModels.thermoModels.thermoMixture.mixingRules.Thermo

@author: F. Ramognino <federico.ramognino@polimi.it> Last update: 17/10/2023

Package for handling mixing rules for combining thermodynamic data of specie into a multi-component mixture

Submodules

Classes

`ThermoMixing`	Class handling mixing rule to combine thermodynamic data of specie into a multi-component mixture.
`janaf7Mixing`	Class handling mixing of multi-component mixture: thermodynamic data in janaf7 definition.
`constantCpMixing`	Class handling mixing of multi-component mixture: thermodynamic data in constantCp definition.

Package Contents

class libICEpost.src.thermophysicalModels.thermoModels.thermoMixture.mixingRules.Thermo.ThermoMixing(mix: libICEpost.src.thermophysicalModels.specie.specie.Mixture.Mixture)[source]

Bases: libICEpost.src.base.BaseClass.BaseClass

Class handling mixing rule to combine thermodynamic data of specie into a multi-component mixture.

Defines a moethod to generate the thermodynamic data of a mixture of gasses.

ThermoType[source]

Type of thermodynamic data for which it is implemented

Type:: str

Thermo

The Thermo of the mixture

Type:: Thermo

thermos

Link to database of thermodynamic properties (database.chemistry.thermo.Thermo)

Type:: _DatabaseClass

ThermoType[source]: str

static ThermoType() → str[source]

Abstractmethod:

The type of thermodynamic data to lookup for in the database

thermos: libICEpost.Database._DatabaseClass: Link to database of thermodynamic data

property mix: libICEpost.src.thermophysicalModels.specie.specie.Mixture.Mixture: The mixture composition

_mix

property Thermo: libICEpost.src.thermophysicalModels.specie.thermo.Thermo.Thermo: The thermodynamic data of the mixture.

update(mix: libICEpost.src.thermophysicalModels.specie.specie.Mixture.Mixture = None) → bool[source]

Method to update the equation of state based on the mixture composition (interface).

Parameters:: mix (Mixture, optional) – Change the mixture. Defaults to None.
Returns:: If something changed
Return type:: bool

abstractmethod _update(mix: libICEpost.src.thermophysicalModels.specie.specie.Mixture.Mixture = None) → bool[source]

Method to update the equation of state based on the mixture composition (implementation).

Parameters:: mix (Mixture, optional) – Change the mixture. Defaults to None.
Returns:: If something changed
Return type:: bool

class libICEpost.src.thermophysicalModels.thermoModels.thermoMixture.mixingRules.Thermo.janaf7Mixing(mix: libICEpost.src.thermophysicalModels.specie.specie.Mixture.Mixture)[source]

Bases: libICEpost.src.thermophysicalModels.thermoModels.thermoMixture.mixingRules.Thermo.ThermoMixing.ThermoMixing

Class handling mixing of multi-component mixture: thermodynamic data in janaf7 definition.

ThermoType

Type of thermodynamic data for which it is implemented

Type:: str

Thermo

The Thermo of the mixture

Type:: Thermo

ThermoType = 'janaf7': The type of thermodynamic data to lookup for in the database

class janaf7(mix: libICEpost.src.thermophysicalModels.specie.specie.Mixture.Mixture)[source]

Bases: libICEpost.src.thermophysicalModels.specie.thermo.Thermo.janaf7.janaf7

Thermodynamic data of mixture with NASA-7 polinomial coefficients consistent with janaf7 class.

classmethod fromDictionary(dictionary: dict)[source]

Abstractmethod:

Not to be used!

property Rgas: The mass-specific gas constant [J/kgK]

_mix

_combineMethod(func: str, *fargs, **fkwargs)[source]

Method for macro-ization of combination of properties based on mixture composition

Parameters:: func (str) – the name of the method to combine
Returns:: returns sum(y_i * thermo[specie_i].func(*fargs, **fkwargs))
Return type:: Thermo.func@ReturnType

cp(p: float, T: float) → float[source]

Constant pressure heat capacity [J/kg/K]. If the temperature is not within Tlow and Thigh, and janaf7.__WARNING__ is True a warning is displayed.

cp(T) = sum_{i=0,4} ( a_{i} * T^i )

dcpdT(p: float, T: float) → float[source]

dcp/dT [J/kg/K^2] If the temperature is not within Tlow and Thigh, a warning is displayed.

dcp/dT(T) = sum_{i=1,4}(i * a_{i} * T^(i - 1))

hs(p: float, T: float) → float[source]

Sensible enthalpy [J/kg]

hs = ha - hf

hf() → float[source]

Enthalpy of formation [J/kg]

hf = ha(Tstd)

ha(p: float, T: float) → float[source]

Absolute enthalpy [J/kg] If the temperature is not within Tlow and Thigh, a warning is displayed.

ha(T) = sum_{i=0,4} ( a_{i}/(i + 1) * T^i )*T + a_{5}

update(mix: libICEpost.src.thermophysicalModels.specie.specie.Mixture.Mixture = None) → None[source]

classmethod fromDictionary(dictionary)[source]: Create from dictionary.

_Thermo

_update(mix: libICEpost.src.thermophysicalModels.specie.specie.Mixture.Mixture = None) → bool[source]

No class data to be updated.

Parameters:: mix (Mixture, optional) – Change the mixture. Defaults to None.
Returns:: If something changed
Return type:: bool

class libICEpost.src.thermophysicalModels.thermoModels.thermoMixture.mixingRules.Thermo.constantCpMixing(mix: libICEpost.src.thermophysicalModels.specie.specie.Mixture.Mixture)[source]

Bases: libICEpost.src.thermophysicalModels.thermoModels.thermoMixture.mixingRules.Thermo.ThermoMixing.ThermoMixing

Class handling mixing of multi-component mixture: thermodynamic data in constantCp definition.

ThermoType

Type of thermodynamic data for which it is implemented

Type:: str

Thermo

The Thermo of the mixture

Type:: Thermo

ThermoType = 'constantCp': The type of thermodynamic data to lookup for in the database

_oldMix: libICEpost.src.thermophysicalModels.specie.specie.Mixture.Mixture: The old mixture composition

classmethod fromDictionary(dictionary)[source]: Create from dictionary.

_Thermo

_update(mix: libICEpost.src.thermophysicalModels.specie.specie.Mixture.Mixture = None) → bool[source]

Compute new properties as mass-weighted from individual specie in mixture.

Parameters:: mix (Mixture, optional) – Change the mixture. Defaults to None.
Returns:: If something changed
Return type:: bool