Modifying Property Package

[wmconlon]

Can I modify a property package within a flow sheet?

Example:
I have a property package for use in combustion of methane in air, which includes the standard air components plus methane and water, and a methane reaction.

Now I want to explore combustion of hydrocarbon mixes, with small amounts of ethane, propane, etc.

Although I can add these components to an existing flowsheet, they don't appear in the existing streams, nor do they appear in a new stream of the re-defined type.

Is there a simple way to do this, or do I start over with a new flowsheet and configure from the start?

Thanks.

[jasper]

The components you add should simply appear. They should appear on the Compounds tab of flowsheet settings. New components should automatically be ticked on in the Material Type tab of the flowsheet settings. Mole fractions should automatically be set to zero.

If not, can you tell me exactly how to reproduce the behaviour you are seeing?

[wmconlon]

I have it now.

After adding a compound in the Thermo Systems and Property Packages tab, go to the Material Types tab and enable the compound.

[jasper]

Normally this happens automatically. Perhaps the compounds you added were already part of your simulation via another property package?