cool the house with a refrigerator (hear me out)

[Gimp]

Check the price and it was about 5-10k for 100w. I don't remember the details.

For what, I recall we paid 247:- for the elements themselves, 100W 12v.

 

[useless]

Yes, there are cheaper options but they can't handle the same temperature and lack lighting.
Only child...

Efficiency, what is that...😉

500 bucks at Biltema. Then you'll have money left for a flashlight.
https://www.biltema.se/hem/hushallsmaskiner/kylskap/minikyl-4-l-2000037849

 

[Emanuel01]

For what, I believe we paid 247:- for the elements themselves, 100W 12v.

You misunderstand me. 100w electricity output. If you have a stove and heat a peltier element and cool it on the other side, you get 100w electricity at the right temperature. Kind of like a stove fan but with more elements or whatever you want to call them.
But it's possible to get more output, though it's of course more expensive!
You can produce electricity with peltier elements!

 

[Gimp]

500 kronor at biltema. Then you have money left for a flashlight.
[link]

That becomes more expensive, the son's fridge is 40l, this one only 4l.

 

[gbgustaf]

A refrigerator consumes about 100W when the compressor is running. A portable AC, designed to cool a room, consumes about 2000W. So you would need 20 refrigerators to effectively cool a room.

If you seriously want to cool your home cheaply, you can take advantage of ground cooling. Bury metal ventilation ducts a couple of meters deep in a loop in the garden. From there, you can lead cool air into the house.

 

[Gimp]

You misunderstand me. 100w electricity out. If you have a stove and heat a Peltier element and cool it on the other side, you get 100w electricity at the right temperature. Kind of like a stove fan but with more elements or whatever you want to call them.
But it is possible to get more out, but it's obviously more expensive!

Oh, yes, in that direction it takes a bunch.

I might have about 50 elements lying around, if I get the time, I'll try sometime what they give.

The idea I had was to build beer coolers around the pool with a 60x60mm aluminum square tube with a hole drilled for a beer can and 8 elements around, but when it's warm outside the beer doesn't even have time to get warm before it's gone...

 

[Gimp]

TS, sorry for thread hijacking.
For your cooling, no, not a fridge, the effect of a normal fridge is pretty weak, in addition to all other disadvantages.
A portable AC doesn't cost that much.

 

[Emanuel01]

Well, yes, it's going in that direction for a group.

Probably have about 50 elements lying around, if I get some free time, I'll try them out to see what they yield.

The idea I had was to build beer coolers around the pool using 60x60mm aluminum square tubing with holes drilled for a beer can and 8 elements around, but when it's hot outside, the beer doesn't even have time to get warm before it's gone...

I've started a similar project but found a tiny compressor and a small condenser and thought of running 2 coils to 2 stainless steel mugs for cooling. I'll be using r134a.
Sorry to ts too!

 

[Avatar86]

A refrigerator consumes about 100W when the compressor is running. A portable AC, intended to cool a room, consumes about 2000W. So you need 20 refrigerators to effectively cool a room.

If you seriously want to cool your home cheaply, you can utilize ground cooling. Bury metal ventilation pipes a couple of meters deep in a loop in the garden. From there, you can lead cool air into the house.

Thanks for the clear and good answer. And suggestion for improvement <3

 

[Eld]

Peltier cheap, well, bought a 40l peltier for my son's room for 3800:-, completely silent and can maintain refrigerator temp.

Sounds like you bought an adsorption refrigerator. Not one with a Peltier element.

 

[Gimp]

Sounds like you bought an adsorption refrigerator. Not one with a Peltier element.

Why do you think that?
I am quite sure it is a Peltier.

 

[Eld]

Why do you think that?
I am pretty sure it's a Peltier.

Because a Peltier cooler typically can only cool about 15 degrees below the ambient temperature, which is not sufficient in summer. An absorption refrigerator is much better and equally silent. Moreover, the adsorption technique has the advantage that it can be powered by any heat source. It doesn't have to be electric-powered. It also has a better efficiency than a Peltier cooler, although it is much more expensive.

So an expensive, silent, well-functioning refrigerator. It must be an absorption refrigerator.

 

[Avemo]

An absorption refrigerator is much better and equally silent. Additionally, the adsorption technology has the advantage that it can be powered by any heat source.

Now it's so confusing that an absorption refrigerator and an adsorption refrigerator are two completely different things. And both can be powered by a heat source other than electricity. Absorption refrigerators are probably mainly expensive because they are a small niche product. When it was invented, it became very common both because it could be powered without electricity and because it was cheaper than a compressor refrigerator.