RE: Water Chillers

• To: "'Aquatic-Plants at ActWin_com'" <Aquatic-Plants at actwin_com>
• Subject: RE: Water Chillers
• From: Marque Crozman <marquec at gastech_com.au>
• Date: Tue, 22 Oct 1996 09:07:19 +-1000

> From: JDAVIS at bio_tamu.edu
> Date: Wed, 16 Oct 1996 21:35:00 -0600
> Subject: DIY Chillers
> 
> I have made a chiller for a reef tank that i kept a few years back.  The
 I took a "bar
> refrigerator" or a large dorm refrigerator and drilled two holes in the
> side of it.  Through the holes I fitted a threaded PVC bulkhead and to
> both sides I fitted hose barbs.  I ran about 25 feet of plastic tubing
> freezer....hmmmmmmmmmmm..........One thing that you would want to
> consider is the cost advantages of running a chiller or just air
> conditioning that one room.
> John
> 
John,
  I would make a couple of suggestions which might improve the
efficiency of your cooler.  
  1)  Add a large container of water to the frige.  Bend a series of
coils in your tubing and immerse the coil in the water. 
  2  Use metal if possible for the coil.  Plastic's heat transfer
ability is poor.  

Metal is probably not a good idea. But there is black plastic out there that has
a high composition of carbon, mainly used in hazardous environments 
( high carbon content to prevent static electricity )  has a fairly good
thermal resistance. Being black it also acts as a black body and radiates
heat and so cools the water inside.

Marque Crozman  ANGFA - NSW

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