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Propane condenser

Propane condenser

Propane condenser

(OP)
We have an air cooled propane condenser.  The condenser is located at the high point in the discharge piping of the compressor.  The inlet and outlet piping to/from the condenser are from the bottom.  Short of CFD analysis,  is anyone aware of calculations that can be done to confirm if non-condensables (inerts) can accumulate in the propane condenser?  

Our contractor is proposing calculations based on Froude number and buoyancy factors to demonstrate that non-condesables will not accumulate in the condenser, even though the condenser is at the high point in the system.   

RE: Propane condenser

It seems to me non-condensible accumulation should be based on a chemical analysis.  

RE: Propane condenser

Ethane in the propane will rise to a high point.  Steady state is not always the case. I always put a high point relief point in a refrigeration system.  It only needs to be a 1" to 2" line.

Likewise a bottom drain poit to get the butanes out should be installed.  Stratification will occur.

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