First run wasn't as expected in as much that to get sufficient cooling to the condenser we almost had 100% reflux i.e. nothing coming out.
Subsequently it was back to the drawing board for a re-design. The result of the remodelling is evident in the following photo's.
Basically what we have done is separate the cooling feed to the condenser and the column. The valve you can see is in the feed to the column. The feed to the condenser is constant once water is turned on, we will however put an in line tap to the outlet pipe of the condenser in order to create a restriction should we need it. initial runs for flushing though hasn't shown a need.
We're running without any control on the element so it's at 1400 watts. Just running water through it we're able to regulate output from virtual pot still mode to total reflux.
While it's not going to run in true pot still mode with no cooling, because of the amount of packing (17 meters of 10 mm copper tube) we still used it as a bench mark to determine max output.
From this (250ml in 8 mins) we can workout a reflux ratio (60+ ml in 8 mins = 3:1) which is apparently a good start point.
As for the photos, I think there mostly self explanatory. however two points to clarify. The short stubs above the lower cooling feed on the column are plugs as son drilled the tube in the wrong place.
The empty bush at the top of the column is for the temperature gauge when it finally arrives.
The only remaining task is to fit the parrot and fittings for this are in progress.
I think that's about it now but will post the results of the first run when our cornflake wash is ready.
Opus



