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Posted by CheezWiz on June 6, 2005, 7:00 pm
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I wish I had friends like yours!
What will you use as an exchanger in the sump?
Or are you going to run tank water through the exchanger?
Depending on the type of stainless, that could be dangerous...
Here is a good article on SS:
http://chemistry.about.com/cs/metalsandalloys/a/aa071201a.htm
Another:
http://www.aquadevice.com/english/05material_y130n.htm
http://www.azom.com/details.asp?articleID=1177
http://64.90.169.191/applications/marine/2-pumps.html
Nice corrosion resistance break-down:
http://www.corrosion-doctors.org/Aircraft/galvseri-sea.htm
>I was given a purpose made ( I have GREAT friends ) Stainless steel
> heat exchanger. Consisting of 2 plates (6 inch square) welded into a
> thin box with stainless tubing lattice inside.
>
> I built it with 2 peltiers, one 60w running on 12v, the other 40w
> running on 5v, both powered by a 230w computer power supply. This is
> sandwhiched between 3 5mm copper plates with the hot side clamped to a
> aluminium heatsink cooled by a 6 inch computer fan...
>
> How does that sound? still haven't had time to tank test yet...
>
> Dan
>
> CheezWiz wrote:
>> What are you using for a heat exchanger?
>> I have some peltier junctions around too, but titanium and stainless
>> steel
>> tubing are expensive.
>>
>> I had thought of sandwiching a length of s curved titanium tubing between
>> to
>> thick copper plates, then loading the airspace full of silver thermal
>> grease. I would have then made a simple coil exchanger to put in the sump
>> and pumped fluid through the system..
>>
>> > For all you clever people out there.... Have any of you ever tried
>> > making a peltier pump cooler for your tank? If so how did it go?
>> >
>> > I'm making one today from some bits I have lying around... It works ok
>> > on the bench...
>> >
>> > Any thoughts?
>> >
>> > Dan
>> >
>
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> heat exchanger. Consisting of 2 plates (6 inch square) welded into a
> thin box with stainless tubing lattice inside.
>
> I built it with 2 peltiers, one 60w running on 12v, the other 40w
> running on 5v, both powered by a 230w computer power supply. This is
> sandwhiched between 3 5mm copper plates with the hot side clamped to a
> aluminium heatsink cooled by a 6 inch computer fan...
>
> How does that sound? still haven't had time to tank test yet...
>
> Dan
>
> CheezWiz wrote: