Re: First Run Failure (sort of)
- I'd say cooling management, not vapor management. What Harry says is
true and a good advice. While you fix the condenser you can also
make it longer to improve it's cooling capacity. Another alternative
is to stuff a small piece of potscrubber to the end of the liebig to
slow down vapor (it accelerates downstream) and allow better cooling.
--- In email@example.com, "Harry" <gnikomson2000@...>
> A picture is not necessary. By his description he has a stock
> standard Vapour Management still. All copper in contact with
> all the way through. Reflux coil on top. Vapour path to a liebigcondenser
> condenser for product.
> What he did do is use a plastic outer sleeve on the liebig
> as the water sleeve. This has been done many times before. Amethod
> of reducing build costs. However, as he has discovered, using asoft
> plastic is not a good idea due to heating/softening/water-leakageproperly
> Recommendation: Bite the bullet & use a copper sleeve that's
> soldered. Copper-to-copper has no issues. Copper-to-stainless orbut
> copper-to-plastic has issues. Stainless or PVC sleeves will work,
> there's always going to be leakage issues due to the differentheat
> expansion rates between copper and plastics, or copper andstainless
> (the joins will crack). IOW, if using synthetic outer sleeve on a
> liebig, expect it to spring water leaks quite often.
> regards Harry
- --- In firstname.lastname@example.org, "abbababbaccc"
> is to stuff a small piece of potscrubber to the end of the liebig toThanks everyone for your comments
> slow down vapor (it accelerates downstream) and allow better cooling.
> Cheers, Riku
> --- In email@example.com, "Harry" <gnikomson2000@>
> > A picture is not necessary. By his description he has a stock
> > standard Vapour Management still. All copper in contact with
> > all the way through.
Harry, you are correct. The vapour doesn't come into contact with
anything other than copper. The plastic outer tube of the condensor
was only because the hardware store didn't have the copper reducer I
needed for a copper sleeve I have already built (I guess it pays to be
patient). My copper condensor is also has a smaller diameter than the
plastic so it might be more efficient.
Riku, the potscrubber idea in the condensor is good. I will do this.
As well as slowing the vapour it might help transfer the heat from the
copper pipe to the centre of the condensor.
I will take some photos and post once the camera batteries are
charged. Next run will be in a couple of weekends... Oh well, it will
be worth it in the end.
- Well I managed to get my copper condensor on tonight and did a test/cleaning run with water. On full power with no scrubbers everything was being condensed, no steam at all. I did spring a leak with the condensor at the joints but fixed with no trouble. Tommorrows the night, so excited....