Glycol chiller for wort chilling

General brewery equipment discussions.

Moderator: Moderator Team

Glycol chiller for wort chilling

Postby WingStall » Tue Feb 26, 2008 12:28 am

Inspired by Wild Bill's awesome recent project, which was inspired by Backyard Brewer's most ingenious idea, I threw this ugly (but functional!) mess together tonight:

No more ice buckets, pre-chillers, or frustrations with warm city water for me!
Image

Glycol bath recirculating at 14F (it starts to get slushy at ~9F):
Image

With the now *totally unnecessary* Chill-Wizard in place, but not yet plumbed:
Image

And, of course, what every wort chiller needs:
Image

That's a 10K BTU in window A/C unit and a 12 gallon propylene glycol/water mix solution with a trash pump for recirculation. The 60F on the display is not a temp reading, it's just the lowest temp the built-in thermostat can be set to. The only reason I kept it instead of replacing it with a Ranco or Love unit was because I thought a functional remote was just way too f'ing cool.

This would work equally well with any immersion chiller, counter-flow, plate, etc. Never mind the Chill-Wizard.

Using Jamil's Whirlpool method and starting with the glycol at 14F, I anticipate the following:
5 gallons ale 210F->65F: ~11 minutes
5 gallons lager 210F->45F: ~25 minutes
10 gallons ale 210F->65F: ~46 minutes
10 gallons lager 210F->45F: ~65 minutes

The glycol chiller could easily be built for under $150.
Cheers, Andy
User avatar
WingStall
Micro Brewery (2500 posts)
 
Posts: 3026
Joined: Sat Sep 24, 2005 12:03 pm
Location: Temecula, CA

Postby BrewBum » Tue Feb 26, 2008 7:22 am

Sweet as usual!
Nate
Guess what... I got a fever and the only prescription... is more cowbell!
http://www.Nebraskabeerblog.com
User avatar
BrewBum
Moderator
 
Posts: 12990
Joined: Fri Jun 10, 2005 7:59 am
Location: In the Sandhills of Nebraska

Postby usmcruz » Tue Feb 26, 2008 9:03 am

Thats frigin awesome brother!!
"If you want peace, be prepared for war"
User avatar
usmcruz
Addict (5000 posts)
 
Posts: 7623
Joined: Sat Dec 24, 2005 12:55 am
Location: The nut house!

Postby Brewtime » Tue Feb 26, 2008 9:19 am

I am impressed now I need one
Drew

Work Hard, Rock Hard, Eat Hard, Sleep Hard, Grow Big, Wear Glasses if you need 'em "Web Wilder"
User avatar
Brewtime
Addict (5000 posts)
 
Posts: 6833
Joined: Thu Mar 03, 2005 1:48 pm
Location: Sykesville Md

Postby fossilsrocks » Tue Feb 26, 2008 9:23 am

This is completely overkill for homebrewing; I love it & may have to make one for myself! :shock: :lol:

Scott
Scott

You should go fishing; it is good for the soul. Have you ever heard of a single Nazi who liked to fish? You can't trust people who don't fish. We need to teach our House & Senate members to fish. Those who don't want to should be used for bait.
User avatar
fossilsrocks
Micro Brewery (2500 posts)
 
Posts: 4196
Joined: Fri Jun 01, 2007 12:00 pm
Location: Indiana

Postby Backyard Brewer » Tue Feb 26, 2008 11:05 am

Nicely done! The remote is a nice touch.. 8)

I've been meaning to gather all the original pictures and new ones of my project and post it to website instead of having it live in multiple threads around the web.

I haven't finished soldering it yet, but I'm going to add a second coil in my glycol bath that will have a bypass valve to run cooling water through for my IC wort chiller. It will be like this:
Code: Select all
hose water in ---- tee ---- bypass valve ---- tee ---- cooling water out->IC
               coil in glycol             coil out glycol

With the bypass valve open, water will take the path of least resistance and tap water will cool the wort down to around 100~120*. Closing the valve will force the water through the coil in the glycol and I should be able to hit any cooling temp I want.
-Derrin

-Brewcommune
User avatar
Backyard Brewer
Barrel (1000 posts)
 
Posts: 1281
Joined: Fri Feb 13, 2004 11:43 am
Location: Orange County, CA

Postby WingStall » Tue Feb 26, 2008 11:16 am

The only thing I'd do differently for v2.0 (or v1.5 maybe) is double the cooling capacity to 20K BTU by either replacing the A/C unit with a bigger one, or adding a second identical one. As it stands, the chilling rates are ok, but you'd get some really impressive numbers with the added cooling capacity:

20K BTU A/C unit; 12 gallon bath; 14F initial temp:
5 gallons ale 210F->65F: ~6 minutes
5 gallons lager 210F->45F: ~13 minutes
10 gallons ale 210F->65F: ~23 minutes
10 gallons lager 210F->45F: ~33 minutes
Cheers, Andy
User avatar
WingStall
Micro Brewery (2500 posts)
 
Posts: 3026
Joined: Sat Sep 24, 2005 12:03 pm
Location: Temecula, CA

Postby WingStall » Tue Feb 26, 2008 11:17 am

Backyard Brewer wrote:Nicely done! The remote is a nice touch.. 8)

I've been meaning to gather all the original pictures and new ones of my project and post it to website instead of having it live in multiple threads around the web.

I haven't finished soldering it yet, but I'm going to add a second coil in my glycol bath that will have a bypass valve to run cooling water through for my IC wort chiller. It will be like this:
Code: Select all
hose water in ---- tee ---- bypass valve ---- tee ---- cooling water out->IC
               coil in glycol             coil out glycol

With the bypass valve open, water will take the path of least resistance and tap water will cool the wort down to around 100~120*. Closing the valve will force the water through the coil in the glycol and I should be able to hit any cooling temp I want.


Ahhh, that's a great idea... dual-purpose!
Cheers, Andy
User avatar
WingStall
Micro Brewery (2500 posts)
 
Posts: 3026
Joined: Sat Sep 24, 2005 12:03 pm
Location: Temecula, CA

Postby WingStall » Wed Feb 27, 2008 9:09 pm

She had her maiden voyage tonight with an APA :)

22 minutes to drop 6 gallons from 210->65. That puts her actual BTU/hr capacity in current weather conditions closer to 8K than 10K, but I can live with that.
Cheers, Andy
User avatar
WingStall
Micro Brewery (2500 posts)
 
Posts: 3026
Joined: Sat Sep 24, 2005 12:03 pm
Location: Temecula, CA

Postby Backyard Brewer » Thu Feb 28, 2008 8:26 am

WingStall wrote:She had her maiden voyage tonight with an APA :)

22 minutes to drop 6 gallons from 210->65. That puts her actual BTU/hr capacity in current weather conditions closer to 8K than 10K, but I can live with that.


That's awesome! 80% efficiency in a homemade heat exchange system is very impressive. Since these units are designed to operate at a much higher temperature, I would have to believe the 10K rated BTU would drop off anyway. I've noticed that running them this cold really takes teh load off them though. Once the glycol bath in mine drops in temperature, the compressor starts to get downright cold. One of these days I'll have to put an ammeter on it to see how many amps it draws once things are cold.
-Derrin

-Brewcommune
User avatar
Backyard Brewer
Barrel (1000 posts)
 
Posts: 1281
Joined: Fri Feb 13, 2004 11:43 am
Location: Orange County, CA

Postby BrewBum » Thu Feb 28, 2008 10:49 am

WingStall wrote:She had her maiden voyage tonight with an APA :)

22 minutes to drop 6 gallons from 210->65. That puts her actual BTU/hr capacity in current weather conditions closer to 8K than 10K, but I can live with that.


It took me just about 40 min. to drop 5 gallons to near 50 with an immersion chiller and no whirlpool. Granted my ground water is near freezing at this point but in this part of the country that device would be extreme over kill. It is still cool as hell.
Nate
Guess what... I got a fever and the only prescription... is more cowbell!
http://www.Nebraskabeerblog.com
User avatar
BrewBum
Moderator
 
Posts: 12990
Joined: Fri Jun 10, 2005 7:59 am
Location: In the Sandhills of Nebraska

Re: Glycol chiller for wort chilling

Postby im1dermike » Thu Feb 28, 2008 11:01 am

WingStall wrote:10 gallons ale 210F->65F: ~46 minutes


That's good?
User avatar
im1dermike
Micro Brewery (2500 posts)
 
Posts: 3074
Joined: Wed Jul 19, 2006 10:06 am
Location: Yunk

Re: Glycol chiller for wort chilling

Postby BrewBum » Thu Feb 28, 2008 11:03 am

im1dermike wrote:
WingStall wrote:10 gallons ale 210F->65F: ~46 minutes


That's good?


That is the point mike, from them it is good because their ground water is probably over 65 degrees year round average, so they have to do more things to get their wort cool.
Nate
Guess what... I got a fever and the only prescription... is more cowbell!
http://www.Nebraskabeerblog.com
User avatar
BrewBum
Moderator
 
Posts: 12990
Joined: Fri Jun 10, 2005 7:59 am
Location: In the Sandhills of Nebraska

Postby im1dermike » Thu Feb 28, 2008 11:06 am

Those were numbers with the glycol chiller, no?
User avatar
im1dermike
Micro Brewery (2500 posts)
 
Posts: 3074
Joined: Wed Jul 19, 2006 10:06 am
Location: Yunk

Postby majorvices » Thu Feb 28, 2008 11:19 am

Whoa - you are quickly becoming my new hero. A very scary prospect for both of us. :shock:
Prost! - Keith
User avatar
majorvices
Addict (5000 posts)
 
Posts: 8030
Joined: Fri Jun 01, 2007 1:21 pm

Next

Return to Brewing Equipment

Who is online

Users browsing this forum: Bing [Bot] and 3 guests