Hi,

I need some advise and basic fundamentals on designing accumulator for R717 flooded Evaporator.

Previously I designed accumulator had no coils and I am seriously thinking to modify and make some new.

I have evaporator of 77 KW rated, so based on my idea 5 feet (1.5 Meter) x 2 feet (0.6 meters) should be sufficient.

The problem is coil. I made some research and I am not sure if "hot line" coil could be inside of accumulator or outside.
See below link:
https://www.google.ch/patents/US6463757

There are some more accumulators I saw which is U type but that one I saw mostly for freeon.

I would appreciate if someone can help me with design and share with me their existingacc.png designs.