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[ChemEng01]

Hey guys 

 

 

I have a hydrocarbon vapour at a high temperature during a fire in a tank.

 

I have calculated the mass / actual vol flow of this vapour.

 

PVV / Vent catalogue is based on STD flow of air.

 

How do you calculate the standard flow of HC vapour if at standard conditions (60F / 0 barg) liquid drops out of the vapour phase? (It doesn't follow ideal gas law as liquid will drop out at a certain temperature)

 

Could I convert the standard air flow value from the catalogue to actual volume flows at the relieving T and P and work on an actual volume flow basis?

 

 

Thanks

 

 

 

[Bobby Strain]

You should review the basics of PVV sizing. You might learn more than otherwise.

 

Bobby