Bringing the density of a selected compound in PYTHON coding

[nihal]

Is there any code to extract the density and viscosity of the compound using the command rho1=Flowsheet.SelectedCompounds['hydrogen'].density

[nihal]

It was showing the error as it is not attributed to constant property

[Leandro Favaretto]

try tiping Hydrogen instead of hydrogen

[Daniel Medeiros]

Vapor phase density is not available for single compounds. DWSIM calculates the density for the entire vapor phase mixture.

[Daniel Medeiros]

To get the density of the whole vapor phase, use

vapdens = stream.PropertyPackage.AUX_VAPDENS(T_in_K, P_in_Pa) # density in kg/m3

[nihal]

Sir, can you please share some source code regarding extracting and viscosity for the overall compound

[Daniel Medeiros]

Overall compound or overall phase?

visc = stream.GetPhase("Vapor").Properties.viscosity # Pa.s
dens = stream.GetPhase("Vapor").Properties.density # kg/m3

[nihal]

Sir, i want from the overall compound