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10-18-2013, 03:52 PM   #1
raouliii

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Aug 2011
Ponchatoula, LA
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I've had a small, wall hung, water cooler sitting around the garage thinking that it might prove useful as part of my homebrewery. It is rated at 115v/4.5a with a 1/5hp compressor.

The only use I can come up with, other than cooling drinking water, is to use it as a pre-chiller for my counter-flow chiller. But before I go through the motions of modifying it, I wanted to get any comments.

Given that I know little of thermodynamics, below are the rough calculations that I've attempted. I may be off by orders of magnitude.

115v x 4.5a x 3.4 = 1760 btu/hr.
Since 1 btu is equal to 1lbH2O/1deg
1760lbH2O/1deg/1hr capacity
8.3lbH2O/1gal ==> 212galH2O/1deg/1hr

For a flow rate of say, 60gal/hr (1gal/minute) ===> 3.5deg cooling capacity

It seems that at that relatively low flow rate, I would gain very little in wort chilling capacity. I guess the bottom line is, any opinions on the value of the water cooler for this application, or should it just go to the garage sale?

Thanks
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10-18-2013, 04:16 PM   #2
cfrazier77
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Mar 2011
Troy, IL
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Hook it up to a keg of beer and have the most legendary water fountain of all time!
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10-18-2013, 07:32 PM   #3
Stealthcruiser
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May 2013
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If you used to chill a bulk amount of water in advance, and store it in some coolers, possibly.

I have access to the same thing, and have been eyeballin' it for some time, although I know squat 'bout them thermodynamic thangs'!
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10-18-2013, 10:21 PM   #4
joesmink
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Sep 2013
Stevensville, Ontario
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Oh no! Don't do it! Thats just not possible
Water coolers cool water thats under pressure,Right?
Well you C O U L D hook that sucker up to a keg EH?
Guess I'm seconding cfrazier77
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10-18-2013, 10:47 PM   #5
nebulous
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Mar 2013
Orlando, FL
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personally i think this would be better suited as a fermenter chiller. add a coil and thermowell to your fermentation vessel, and hook a pump up to a stc-1000, some tubing and you're good to go.
but thats just me
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10-18-2013, 11:39 PM   #6
Stealthcruiser
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May 2013
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Quote:
 Originally Posted by nebulous personally i think this would be better suited as a fermenter chiller. add a coil and thermowell to your fermentation vessel, and hook a pump up to a stc-1000, some tubing and you're good to go. but thats just me

You could I guess, turn it into a glycol chiller............
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