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#1 Posted : Wednesday, March 07, 2007 8:32:09 PM(UTC)
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I"m trying to find a way around the heat release from the condenser and tower cross tubing. I Just recently tried a coiled ,wart chiller style, 15" copper tubing and took some measurements, nothing to write home about ,or brewhaus about in this case,.

Maybe I"m going on a limb here, but has anyone ever tried car/truck radiators? Transmission oil coolers seem to be just the right size to be wieldy yet offer some serious heat loss ,like this little guy right here http://cgi.ebay.com/ebaymotors/Automatic-Transmission-Oil-Cooler-Hayden-1405_W0Q QcmdZViewItemQQcategoryZ33727QQitemZ280072836222QQtcZphoto,.

Slap a large fan to it or place in front of a breezy window might just do the trick.

Thoughts?
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#2 Posted : Thursday, March 08, 2007 12:42:37 AM(UTC)
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Alex:

Did you have a fan blowing on your wort chiller? That helps.

Anyway, the Hayden 1405 looks pretty impressive and it certainly is cheaper than a wort chiller. I would be EXTREEMLY interested in your test results should you try it. I'd like to know both the heat reduction and the flow rate if possible.

I've been thinking about converting something like this:

http://cgi.ebay.com/OASIS-DRINKING-FOUNTAIN-WATER-COOLER_W0QQitemZ140092882918QQ categoryZ20569QQrdZ1QQcmdZViewItem

But of course that will be expensive to set up and run. So please let me know what you find out about the tranny cooler.

Thanks!

Cheers
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#3 Posted : Thursday, March 08, 2007 1:03:00 AM(UTC)
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Slap a large fan to it or place in front of a breezy window might just do the trick.

You can use a transmission cooler, or the radiator from a watercooled motorcycle. A new transmission cooler runs about $100 at auto parts stores. I think my motorcycle radiator cost me something like $45, delivered, from someone on Ebay. I have a 10' high-velocity fan strapped to it. It works well.
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#4 Posted : Thursday, March 08, 2007 6:04:19 AM(UTC)
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Elricko:

That"s the first place I started looking as well. Converting old water coolers that actually have a circulating Freon pump to them, but for the price, I would rather use ice. I"m still keeping my eye open for some cooler junk parts, but no luck yet.

I was also considering converting a mini-fridge as well, but the cooling mechanism is not designed to handle any serious heat and might not last long before it breaks.

I put a house fan in front of the wart cooler and even continuously sprayed it with water mist. Set my basin water to 30c and timed how long it took for the water temp to drop by 1c. It was FAR slower than what it took my still to raise it by 1c. I imagine it would do nothing more than, ever so slightly, reduce my water heat up rate. It just doesn"t seem to have the radiating surface area.

On the bright side though, I now have a wart cooler! ;,

Larry:

I was looking at a Kawasaki ZX9 radiator but the sheer length of coil going through it and its radiators surface area were somewhat smaller than truck transmission oil radiators.

Maybe if I can find a fanned combo kit like you suggested it would make it worth while.
I"ll go ask at my local bike store.


Speaking of wart coolers:
Is there any risk of contamination the wart/mash/wash with inserting a copper coil into it?
Should I use any sterilizing methods?
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#5 Posted : Thursday, March 08, 2007 7:09:00 AM(UTC)
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if you are putting it into anything you are going to directly consume ,not going to distill it, i would DEFINITELY clean and sanitize it. im not completely sure about the issue of putting it into something you are going to distill b/t then and consuming it...

Rob
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#6 Posted : Thursday, March 08, 2007 8:35:00 AM(UTC)
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Okay, I hope we are talking about the same thing, I'm talking about the cooling water. I'm not talking about putting anything into the wort or moving the wort through anything. I am using the wort chiller from my beer making setup to cool the water leaving the condenser and column of my still. Please don't misinterprit what I am saying. If this isn't this issue we are discussing here please let me know so I can get on track.

Now Alex, I do get a considerabe drop in temp running it through the chiller with a fan on it. So much so that I don't have to put any ice in for the first hour or two. To make a 25L batch I usually only use 3 or 4 ice bottles for the whole batch. I don't have the use the same still that you do, so that might be a factor, and my pump flow rate is 609gph so that may be a factor as well. I'm looking to maybe pick up a water cooler in an auction or when they close a school or office building. Let me know how your radiator works out.

Cheers
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#7 Posted : Thursday, March 08, 2007 10:35:22 AM(UTC)
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Here's something that will work and its cheap and easy.

Back in the early 50's this was the poor mans air conditioner. Yore tub of cooling water at the bottom with a 2' weighted ,sand filled, Pvc pipe capped, just the width of yore cooler. About 3' above, in a supporting frame mount a roller with one side attachable to a motor, like a rotisserie for your grill. Sew an open weave fabric, that is very water absorbent like cotton, say 6.5' X whatever width you have. Imperative you have the lengths of the 2 sides and all across the middle exactly the same. Have the bottom several inches deep in the water, turn on the moter, and a fan, to blow exactly perpendicular to it. The evaporation, not only cools the water, but you too if you sit on the other side on a hot day.

This is just a very rough and course description, but there are hundreds of ways to make it work even better. Just presenting the concept here. Really works so much better than any closed system cuz you're dealing with evaporating energy loss, not just heat transfer.

This is what I would do, but I am sticking to my cold mountain spring. I'm a nuclear physist, not a mechanical engineer by training, so will leave the best final plan to those qualified.
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#8 Posted : Thursday, March 08, 2007 11:02:11 AM(UTC)
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John,

Sounds pretty elaborate, I can see how that might work! Sadly might not be overly practical for an in kitchen setup. Not all of us are lucky enough to be living by cool spring water! ;,

I agree, evaporation is a brilliant method ,hence my "auto misting" of my radiator elements,, I just ordered the oil radiator; we"ll see how it performs with moist air running through it.

Nuclear physics? It"s really interesting to see the span of this hobby UserPostedImage



Elricko:

I"m not entirely sure why I"m not getting the desired results from a wart cooler. I"m aiming to stay stable at right about 6c, might be asking for too much though.

The speed in which the water runs through the pipes will merely distribute the over all heat output in a more even manner ,same heat over more water,. The over all closed system should still absorb the same amount of heat. It"s a give and take, less contact time will the heating elements to warm a given CC up, also means less contact time though the radiator unit to let go of that heat.


As for the wart cooler issue, no misunderstanding there. I was referring to using it as a radiator element, though in general I was curious as to how it will be used to actually monitor wart temp. I"m interested in trying to make Sake, and from what I"ve read so far, it can be a very temperature sensitive process, was just curious.
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#9 Posted : Thursday, March 08, 2007 11:24:48 AM(UTC)
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WOW! 6°C???!!! my cooling water starts at 10°C... tonight i am going to get that mini fridge i mentioned above and sometime soon ,day, week, month... who knows, modify it as follows:

drill two holes in the side. hose fitting onto the hole ,inside fridge and outside,. one is the water in, the other, water out. turn on the fridge. run my cooling water return through the fridge before back into my cooler. hopefully it will work ,the fridge i mean,!

Rob

p.s. - Elricko, i believe we're talking about the same thing. i am speaking of running cooling water through the wort chiller also.
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#10 Posted : Thursday, March 08, 2007 11:51:55 AM(UTC)
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My current setup uses water at about 2c, but I go through about 40lbs of ice a run. Gives me some serious control when I turn the column cooling valve, but it"s a serious pain to maintain.

I"m going to try and go for the PSII high capacity column, hopefully with the extra foot height and diameter difference, I"ll be able to get the same reflux with warmer water.

The mini fridge way is defiantly worth trying, my only worry with that is the strain on the fridge compressor ,kind of like leaving your fridge door open to cool the kitchen on a hot day UserPostedImage ,. Would be great to actually have a radiator element inside the fridge for the water to run though, should give you some serious heat transfer, though once again would probably strain the fridge more.
Please post your findings when you get that set up!
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#11 Posted : Thursday, March 08, 2007 12:35:23 PM(UTC)
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Alex,

You will love that column, its incredible, but understand, and hopefully Rick will kick in here, since it runs at almost or even more twice the speed of a 2', heat dissapation, and cooling water are at least doubled.

You being a Chemist, will appreciate the cooling post I just made. However, tonight or tommorrow, I will post an even better solution for those who plan on keeping their home, want to cut their heating and cooling power bill by at least fifty % satisfy their cooling problems at the same time. I love natural, and I love free when the Gov. pays for it.
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#12 Posted : Thursday, March 08, 2007 1:03:00 PM(UTC)
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Well, yes and no on the water issue. Per hour, you will certainly use consume more cold water or ice. However, you will also run for considerably less time. So, it at least comes pretty close to balancing.
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#13 Posted : Thursday, March 08, 2007 1:35:53 PM(UTC)
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I figure that due to the columns size and extra sheer contact with packing surface area, the vapor would be more thoroughly fractioned by the time it reaches the top of the column, hence I wouldn"t probably need water as cold to "force" the gasses back down into reflux.

I guess I"ll know when I try.

Rick:

I can"t seem to find the 2"-3" converter and a 3" bung on the item lists. How would I go about adding these items in if I"m going to go ahead and order the column?
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#14 Posted : Thursday, March 08, 2007 1:40:07 PM(UTC)
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Thanks Rick,

I get so involved with my enjoyement of this column, and not haveing to worry about water issues with spring water. My sister, with her
PSII still seems to use almost triple the water I use ,also spring and gravity fed, than I do, to keep her smaller condenser operating efficiently. ,both the through tubes and final condenser,.
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#15 Posted : Thursday, March 08, 2007 1:55:00 PM(UTC)
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Alex- I have just responded to your PM regarding the 2' x 3' reducer. Our new reducer should be available in a couple of days. UserPostedImage
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#16 Posted : Thursday, March 08, 2007 2:03:30 PM(UTC)
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Alex,

Call or email Rick at brewhaus as I did. Ask for a composit price copper, column reuducer with tri clamp fittings and gaskets, etc.

Compare quotes. It may be more practial and not much more money to order thhe whole dange thing. start to finish.
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#17 Posted : Thursday, March 08, 2007 2:59:17 PM(UTC)
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Wonderful, thank you both! UserPostedImage
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#18 Posted : Thursday, March 08, 2007 3:37:43 PM(UTC)
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why couldnt you use a small a/c unit and modify it so you could run refrigerant through your cooling coil instead of water? the coil would have to match the compressor size to work right,and not burn up the compressor.
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#19 Posted : Thursday, March 08, 2007 3:51:00 PM(UTC)
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i dont know about most of the rest of you, but i am not running any currently available cooling refrigerant anywhere close to stuff i am going to be consuming. but, if done right and carefully, it could be VERY efficient and extremely effective in my opinion. Rob
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#20 Posted : Thursday, March 08, 2007 4:13:08 PM(UTC)
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Wineo,

Is this possible within a decent price range? Wouldn"t the piping need to be able to withstand high pressure?

Would love to see how this can be done. It defiantly would be ideal. What about re/disassembling?
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