Pool heating - solar panel house - request info

[xman-27]

Hello,

I went through a lot of posts on solar panels houses (spiral pipe, ...) for the purpose of heating a pool.
I found a site on which it is explained that we can make a solar panel with a grid (rear) of a refrigerator (it falls well, I have it on hand). What do you think ?
I have the possibility to recover car radiators in quantity, it will work better with radiators of this type painted in black.

I thought doing the following thing:
- Compartment complete compressed polystyrene (it remains of my house) which should be well insulated, the bottom will be painted matte black.
- sensor = fridge grille, painted matte black or auto radiator ???
- glass (I have double glazing that I still have). Is it necessary to double glaze or do I double it?

As my goal is to heat the pool of my son (4m diameter, height 80 cm, 3 approx m3), I thought to install this system, coupled with a valve 3 channels to pumping system + programmer (until I invented nothing, many of you do) mounted on an adjustable support (manually)

My question is the following :
Will this grid be sufficient (the swimming pool is tarpaulin when it is not used (day and night) to gain a few degrees or must we exclude this solution?
Should we rather pass with a PE pipe as bcp d'entre?

I thank you for your feedback.

Sincerely

[Christophe]

1 only grid will be clearly very insufficient: it is expected that at least half of the surface of the swimming pool in flexible solar panels!

And it seems rather complicated as a DIY to heat a small pool, not to mention the risk of corrosion!

There are other less complicated methods to make a solar panel for swimming pool, the simplest is the black garden hose under glass or bell ...

Here are other ideas: https://www.econologie.com/construire-ou ... -3215.html

Or even buy and use a special flexible solar panel pool of this type: https://www.econologie.com/forums/reparation ... 10930.html

[Gaston]

Hello,

In my opinion, the refrigerator rack has a diameter of pipe much too weak to allow a significant flow compared to the volume of the swimming pool.

With the car radiator, it would be better, especially if you use several to get a large area.

It should be noted that the pool itself is a sensor near 12m² (although it is not optimal).
If you want to feel a difference, you need a surface of the same order (with 1 or 2 m², it will not bring much).

By the bye,

As my goal is to heat my son's pool (4m diameter, height 80 cm, ie approx 3 m3)

4 m diameter on 80 cm high, it is rather 10 m3 ...
To increase the temperature of 1 °, it is necessary to supply 41800000 J or 11,6 kWh.

Knowing that the sun gives about 1kWh / m², an 1m² sensor with a yield of 80% can give about 6kWh per sunny day, which is enough to increase the temperature of the 0,5 ° pool ... not even enough to make up for the losses the night...

[fam]

Hello

As an experiment, I had unrolled a coil of 20m of red rubber pipe laid on a tiled roof with an aquarium pump, probe and contactor all of recup. The temperature rise was from 3 to 5 ° for 5Litres per minute.


The next step is to go through black polyethylene tube and longer.

and here is a site that only talks about self-build solar heating blogs

http://www.builditsolar.com/Projects/Po ... htm#Basics

[chatelot16]

to be useful the sensor must make a large area, larger than the surface of the pool

the surface of the pool also receives the sun, but cools it at night: the advantage of the sensor surface is that it circulates the water that when it heats, and not when it cooled

a large amount of black tiuyau and a good solution: glass and greenhouse effect useless because the temperature is low so the pipe retems very little infrared: a window to make the greenhouse effect makes more loss by reflection than gain by retaining the infra red reemie not the pipe

small improvement possible: the concrete is cheaper than the polyethylene: it is possible to make a concrete deck with pipe in like a floor heating: it is the surface of concrete which counts for the captured power, even if the surface of Touyau inside is much weaker

[tmicola]

The flexible solar panel has the advantage of being easier to install.
And considering the size of the pool (4m diameter for a height of 80cm), the terrace is not relevant