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Plumbing

Postby Monty » Tue May 07, 2013 6:44 am

So I know almost as little about plumbing as I do about electrical. That said, what is the best way to set up a dash or even a VM reflux & product condenser? I'm recirculating from a reservoir, pumped using a cheapy submersible pump. I've been using a Y to split the feed to the condensers and use 2 separate return lines. My cold water enters the bottom of each condenser and warm exits the top. Is there a better way? If so, diagrams are really, really helpful.
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Re: Plumbing

Postby Stinger » Tue May 07, 2013 6:59 am

I was going to point you to threads with diagrams and other info. - but they've all vanished within the last 24 hours, dammit :!: :confusion-confused: :angry-cussing:
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Re: Plumbing

Postby Bonjimmi » Tue May 07, 2013 9:09 am

I have a separate feed for each condenser. This way when you make an adjustment to one, it doesn't affect the other.
In other words the feed water tee's off then you have a valve for each condenser ....
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Re: Plumbing

Postby cacticlayton » Sun May 12, 2013 4:33 pm

Hey monty you should go check out a post I just made in the plated forum titled "cooling manifold", there is a lot of good ways to set up your plumbing that were suggested to me as well as what I ended up going with. Sorry I dont know how to add a link.
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Re: Plumbing

Postby Kapea » Mon May 13, 2013 12:20 pm

I run a VM column. My condensers are run in series. Cool water enters my product condenser (leibig) at the product out end. The cooling water travels "counter-flow" to the ethanol vapor and exits the liebig at the vapor in end. From there the cooling water travels through a hose to the reflux condenser (double wound 1/4" OD copper coil). The cooling water flows through the reflux coil, exits the reflux coil into another hose where it is directed to waste. I use rainwater for cooling water. Mine is a "once-through" cooling water system. One flow path. No recirculating. Cooling water inlet temp around 75F. Outlet temp around 135F. Feed rate 1 liter per minute. Cooling water is provided by household plumbing and flow is regulated with a hose bib valve.

Using propane as heat, it is possible to calculate boiler power input from cooling water flow and temp change.
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