Peltier pump cooler....

[Mr-Moonlight]

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

[Charles Spitzer]

"Mr-Moonlight" > wrote in message
ups.com...
> 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

thermodynamics. it's a good idea, not only a law.

figure out what amount of heat it will move, and then figure out what amount
of heat is in your tank.

[CheezWiz]

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..

"Mr-Moonlight" > wrote in message
ups.com...
> 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
>

[Mr-Moonlight]

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..
>
> "Mr-Moonlight" > wrote in message
> ups.com...
> > 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
> >

[Funky Brothers]

Mr-Moonlight wrote:
> 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..
>>
>>"Mr-Moonlight" > wrote in message
ups.com...
>>
>>>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
>>>
>
>

[CheezWiz]

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


"Mr-Moonlight" > wrote in message
ups.com...
>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..
>>
>> "Mr-Moonlight" > wrote in message
>> ups.com...
>> > 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
>> >
>

[Mr Dad]

Keep in mind that these Peltier coolers are nothing more then heat pumps and
are very very low heat carring capacity. For a fish tank you would need a
lot of them a Super huge heatsink.

Your best bet is to modify an AC unit for the job.





"kryppy" <kryppy@.> wrote in message
...
> On 1 Jun 2005 06:04:16 -0700, "Mr-Moonlight" >
> wrote:
>
> >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...
> >
>
>
> I like your idea better then mine of modifying a 10,000 btu wall
> shaker AC.
>
>
>
>

[Mr-Moonlight]

Thanks for the info.... I'm not bad at the electronics side but have NO
idea about steel... I'll look into it more before I tank test it... I
have no sump so was planning to draw water straight from the tank..
Hmm... Lots to think about now...

But I have other problems first now... see my new thread...

Dan