The Mother Duck

Perforated & bubble cap plated columns

Re: The Mother Duck

Postby EziTasting » Thu Oct 12, 2017 10:07 pm

Sounds like a lot of messing about!

You better be a tradie... right m thinking this will take quite a bit for of fabrication work ...
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Re: The Mother Duck

Postby Professor Green » Fri Oct 13, 2017 10:13 am

EziTasting wrote:
You better be a tradie...


Or a masochist...

Cheers,
Prof. Green.
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Re: The Mother Duck

Postby bluc » Fri Oct 13, 2017 10:20 am

Cant wait to see your boiler woody I bet it will be a rippa :happy-partydance:
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Re: The Mother Duck

Postby woodduck » Fri Oct 13, 2017 11:58 am

Professor Green wrote:
EziTasting wrote:
You better be a tradie...


Or a masochist...

Cheers,
Prof. Green.


Thanks for the vote of confidence boys :laughing-rolling: :laughing-rolling: my last one didn't turn out too bad, gotta keep pushing the envelope :handgestures-thumbupleft:
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Re: The Mother Duck

Postby Bryan1 » Fri Oct 13, 2017 4:34 pm

G'day Woody, I'm at the crossroads on my double boiler on whether to weld the 2 kegs or put a seal in then fabricate some tightening brackets so the 2 kegs can come part for cleaning or just doing a mash using one keg. With my setup the top of one keg is cut out with only about 40mm left on the side which looks like a good setup with the base cut off another keg so it is a direct heating path to the steam flow. I reckon I will go the seal route as tigging would mean the double boiler would be a single use and not modular for doing mash's in a one keg setup.

Cheers Bryan
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Re: The Mother Duck

Postby woodduck » Mon Oct 16, 2017 7:13 pm

Hey guys, there's been progress! Not much and pretty underwhelming but progress none the less :))

Made the first sightglass branch off last night and dry fitted it, looks ok :handgestures-thumbupleft: I've decided on 4" sightglasses with tri clamps, nice and easy.
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Re: The Mother Duck

Postby woodduck » Mon Oct 16, 2017 8:04 pm

Brain dump,

I'm after some advice and or discussion from all you very clever blokes out there :handgestures-thumbupleft:

I've been tossing up ideas with this double boiler. Do I do it like Bushy and have the elements in the heating jacket or do I take advantage of a machine I have here that recalculates hot water through my extracting plant? This machine is deisel fired and can circulate water over 100 degs although it does return to a holding tank so it wont run much higher than that without issues. Although 110 may not be out of the question as the water should be back below 100 before it gets back to the holding tank. Would 100deg be hot enough? It would heat up eventually but would it be as slow as hell? :think: I think if i was to go this way I would use a copper coil in the heating jacket and fill the rest of the void with glycol for better heat transfer. I could then use this same coil to crash chill by running cold water through it. The water heater can be set at any temp so it would be handy for mashing, set it at desired temp and it will run at that temp +/- 2 degs.

Any ideas/ thoughts welcomed. :handgestures-thumbupleft:
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Re: The Mother Duck

Postby Doubleuj » Mon Oct 16, 2017 8:38 pm

You lost me half way through that post but basically 100 deg would be more than enough, liquids under normal atmospheric pressure will reach their boiling point and stabilise until all the liquid is evaporated, in our case we have a mix of ethanol and water( and some other compounds). Ethanol as we know evaporates at 78 deg and water at 100. If you've got a double boiler that can reach 100 deg I'd say you're on a winner.
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Re: The Mother Duck

Postby db1979 » Tue Oct 17, 2017 6:36 am

It's less about the temperature and more about the energy input.

I have no idea what you mean woodduck, maybe a diagram might help.
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Re: The Mother Duck

Postby orcy » Tue Oct 17, 2017 9:09 am

If you already have a system to recirculate water at a set temperature, id go with that personally.
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Re: The Mother Duck

Postby woodduck » Tue Oct 17, 2017 11:43 am

What? It all makes perfect sence to me 8-} :laughing-rolling: :laughing-rolling: I'll whip up a finger painting tonight to try explain it.

Thanks guys :handgestures-thumbupleft:
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Re: The Mother Duck

Postby bluc » Tue Oct 17, 2017 12:12 pm

4"sgt on 6" will look smick as :handgestures-thumbupleft:
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Re: The Mother Duck

Postby woodduck » Tue Oct 17, 2017 12:19 pm

Still recon 6" sights on 6" would look better but the clamps are worth more than my house :laughing-rolling:
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Re: The Mother Duck

Postby woodduck » Tue Oct 17, 2017 9:29 pm

Not sure if it will help but here's a bit of a plan for the boiler. I'm not as clued up as you blokes with your computer drawing so had to scribble something by hand.

This is a cross section drawing so as if it’s been cut in half from top to bottom :handgestures-thumbupleft:

Hope it makes sence now.
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Re: The Mother Duck

Postby woodduck » Tue Oct 17, 2017 10:56 pm

Sorry guys I should have drawn a inlet and out let on the copper coil (all the small circles in the drawing) that runs between the two skins. It will in effect be like the attached photo it will just be internal, heating the glycol that will inturn heat the mash/wash. The hot water that will run through the coil will be supplied by the hot water system I already have.
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Re: The Mother Duck

Postby Zak Griffin » Wed Oct 18, 2017 10:20 am

Don't see why it won't work? 100 degrees is 100 degrees, and if you've already got the equipment... I know what I'd be doing.
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