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Old 09-27-2012, 03:34 PM   #1
diS
 
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After some thought, I decided to give it a shot and try to make keezer and fermentation chamber in one.

Actually it will be a two freezers connected via flexible or PP tube, where blowing and exhaust will be performed with PC fans controlled by STC100.
Freezer for fermentation is set vertically (like the fridge) so it takes up less space.

Nothing without Sketchup..



So far, I removed compressor, painted old freezer lid in black and drilled intake pipe.





We'll see how the project will evolve in the future..
Greatest challenge besides maintaining the fermentation temperature will be preventing moisture entering into the system.
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Old 10-09-2012, 05:43 AM   #2
diS
 
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I finally got some time to work on this project... fermentation chamber is almost finished.
few pics..






Door fastener for better lid sealing.






Bottom pipe is intake for cold air, and top pipe is for hot air, I"ll put another fan in reduction part to exhaust hot air to keezer.




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We are only 10,000 years into beer... there are thousands of years left to go!
Things are bound to change!!

Brewroom with HERMS build
Fermentation chamber and Keezer.. a.k.a. FermKeezer

 
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Old 10-09-2012, 04:07 PM   #3
oo7cable
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Interesting...

Are you controlling the Frem chamber with the keezer compressor?

Or are you running both compressors?

 
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Old 10-09-2012, 04:29 PM   #4
diS
 
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It will be 2 chambers and 1 compressor.

This is old freezer positioned vertical, I put styrofoam on bottom (now it is frontal) to reduce space and increase cooling efficiency. Other freezer (which will do the job for both) is pretty good insulated with 4" thick sides and compressor should be strong enough to maintain both freezers at appropriate temperatures.
Operation principle is similar to "Son of fermentation chiller" where one chamber provides a cool air and then fan blows it to the second chamber.
We"ll see real efficiency ant the end.

Ghetto but it will do the job.
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We are only 10,000 years into beer... there are thousands of years left to go!
Things are bound to change!!

Brewroom with HERMS build
Fermentation chamber and Keezer.. a.k.a. FermKeezer

 
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Old 10-10-2012, 12:33 AM   #5
Yaason
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Shouldn't the top be for cold intake since cold air falls? Why exhaust the hot air back into the keezer instead of exhausting it out into the open?

And it looks great so far.
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Old 10-10-2012, 05:32 AM   #6
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Quote:
Originally Posted by Yaason View Post
Shouldn't the top be for cold intake since cold air falls?
Logical question, I've thought about it and I concluded that by putting "cold" pipe at top and exhaust downwards it would suck out cold air from the bottom, I think it is less energy efficient. Correct me if I'm wrong.

Quote:
Originally Posted by Yaason View Post
Why exhaust the hot air back into the keezer instead of exhausting it out into the open?
I would need some kind of irreversible (one-way) barrier in order to exhaust hot air and prevent moisture from entering the sistem.
__________________
We are only 10,000 years into beer... there are thousands of years left to go!
Things are bound to change!!

Brewroom with HERMS build
Fermentation chamber and Keezer.. a.k.a. FermKeezer

 
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Old 10-10-2012, 11:31 AM   #7
rekoob
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hmmm, I like the idea of this and I think you are on the right track to make this work. I look forward to seeing this project along the way.
I do have one question, how did you mount that shelf inside?

 
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Old 10-10-2012, 02:48 PM   #8
diS
 
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Old freezer had two sections divided by barrier. Under shallower section there was compressor and this is where I put shelf, carriers were already there so I only had to cut and mount 2 pieces of glass (glued with silicone).
I put styrofoam under it and insulation tape on front (as you can see on last pic) to ensure insulation between fermentation and shelf part.

Shelf will probably be used for storing laboratory equipment because it is easy to disinfect.
__________________
We are only 10,000 years into beer... there are thousands of years left to go!
Things are bound to change!!

Brewroom with HERMS build
Fermentation chamber and Keezer.. a.k.a. FermKeezer

 
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Old 10-10-2012, 04:04 PM   #9
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So have you fired it up yet with it on its side yet? Just curious if the compressor and everything is running fine? Thought of this idea couple months back but didn't know how freezer equipment would be with it in a position not usually intended for it. Know what I mean?

If it's works good I probably will be doing this soon for a big ol ferm chamber

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Old 10-10-2012, 07:29 PM   #10
diS
 
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I get what you mean and I think it will be able to maintain proper temps at both freezers.
Right now I have 10gal of sweet stout fermenting in 2nd freezer, after racking I"ll be able to finish collar do the test ride...
__________________
We are only 10,000 years into beer... there are thousands of years left to go!
Things are bound to change!!

Brewroom with HERMS build
Fermentation chamber and Keezer.. a.k.a. FermKeezer

 
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