Class: `Oil`

Description

The Oil class represents the properties and constants for a generic oil.
It provides physical and thermodynamic properties required in process engineering simulations and calculations.
This class is typically used for crude oils, lubricating oils, or user-specified oils in simulations.

Properties

name (string): Oil
formula (string): N/A (mixture or undefined)
molecular_weight (float): User-defined (default = None)

Class Reference

class Oil()

Parameters:
temperature: Temperature, default = Temperature(25,"C")
pressure: Pressure, default = Pressure(1,"atm")
density: Density, default = None
specific_heat: SpecificHeat, default = None
viscosity: Viscosity, default = None
thermal_conductivity: ThermalConductivity, default = None
vapor_pressure: Pressure, default = None
enthalpy: HeatOfVaporization, default = None

Methods

The properties of the Oil class are calculated using the following methods, inherited from the base Component class.

phase(): Always "liquid" under standard conditions.
density(): User-defined or calculated from empirical correlations.
specific_heat(): User-defined or estimated based on empirical correlations.
viscosity(): User-defined or estimated using DIPPR or polynomial correlations.
thermal_conductivity(): User-defined or estimated using polynomial correlation.
vapor_pressure(): Calculated using Antoine-type correlation (if applicable).
enthalpy(): Estimated from heat capacity correlation and integration over temperature range.

Examples

from processpi.components import Oil
from processpi.units import *

# Define a generic oil
generic_oil = Oil(
    temperature=Temperature(25, "C"),
    pressure=Pressure(1, "atm"),
    density=900  # Example density in kg/m3
)

print(generic_oil.density().to("kg/m3"))
print(generic_oil.viscosity().to("Pa·s"))
print(generic_oil.specific_heat().to("J/kgK"))
print(generic_oil.thermal_conductivity().to("W/mK"))
print(generic_oil.vapor_pressure().to("Pa"))
print(generic_oil.enthalpy().to("J/kg"))

Class: Oil