5. Input

Helper classes for inputting parameters

class gasthermo.input.IdealMixture(**kwargs)[source]
Parameters

  • num_components (int) – number of components

  • dippr_nos (typing.Optional[typing.Union[str, None]]) – dippr numbers of components

  • compound_names (typing.Optional[typing.Union[str, None]]) – names of components

  • cas_numbers (typing.Optional[typing.Union[str, None]]) – cas registry numbers

get_point_input(i: int) → dict[source]
Parameters

i – index of point

Returns

keyword arguments for point input

set_point_input(i: int, **kwargs)[source]
Parameters

i – index of point

setup()[source]

setup input parameters

class gasthermo.input.RealMixture(**kwargs)[source]
Parameters

  • MWs (typing.Optional[typing.List[float]]) – molecular weights of component sin g/mol

  • P_cs (typing.Optional[typing.List[float]]) – critical pressures of componets in Pa

  • T_cs (typing.Optional[typing.List[float]]) – critical temperatures of pure components in K

  • V_cs (typing.Optional[typing.List[float]]) – critical molar volumes of pure components in m**3/mol

  • ws (typing.Optional[typing.List[float]]) – accentric factors of components

  • k_ij (typing.Union[float, typing.List[float]], defaults to 0) – equation of state mixing rule in calculation of critical temperautre, see Equation (35). When \(i=j\) and for chemical similar species, \(k_{ij}=0\). Otherwise, it is a small (usually) positive number evaluated from minimal \(PVT\) data or, in the absence of data, set equal to zero.

get_point_input(i: int) → dict[source]
Parameters

i – index of point

Returns

keyword arguments for point input

set_point_input(i: int, **kwargs)[source]
Parameters

i – index of point