DIY solar distiller

This simplest solar distiller for producing distilled water runs purely on solar energy and nothing else. It is not difficult to assemble and anyone can do it. Of course, its performance is not high, but it is 100% free. And it may be quite suitable for solving some household needs.

Will need

Three plastic bottles with a volume of 1.5-2 liters, of any shape.
Two plastic bottles with a volume of 0.25-0.33 liters.

Given today's products, all of this can be easily found in any grocery store.
You will also need: sealant (you can use hot glue instead).
Tools: stationery knife, felt-tip pen.

How to make a solar distiller

So, let's start making a solar distiller. First of all, cut off the bottom of small bottles with a knife.

Then we take one large bottle, and place small bottles in a row closer to its neck. We outline with a felt-tip pen.

Cutting holes

As a result, the bottles should be inserted into these holes.

Next, take the second bottle and attach the necks of small bottles to its bottom.

We will also outline with a felt-tip pen and cut out holes for them.

Let's insert one into the other. The result was a kind of design.

We seal the junction of all the bottles with sealant so that everything is airtight.

We will paint the bottle with a branch from the top with black spray paint.

From the third bottle we will cut out a stand for the black bottle so that the entire structure can be placed normally on the table. We'll secure it with tape.

The device is ready.

How does he work?

Everything ingenious is simple as always. The distiller is placed in the sun. Water is poured into a dark container. Since the containers have different colors, they will heat up differently in the sun. A black bottle will have a temperature of about 70-80 degrees Celsius, and a transparent one around 40.
The water in the black bottle, of course, will not boil, but it will still evaporate more actively. Its vapor will go into small bottles into a transparent container and condense there.
Thanks to the use of a two-level transition between bottles, a circulation of air with water vapor will be created inside the distiller, which will increase the productivity of the system.

Tests

Pour water into the neck of the black bottle. For the purity of the experiment, it is tinted.

We put our distiller in the sun and leave it working.

In the evening, when the sun goes down, you can drain the distilled water.

Or you can not drain it, but wait until the required amount is produced.

The result is this: I left the distiller in operation for five sunny days in a row, and in the end I managed to get 60 milliliters of distilled water. It turns out its productivity is 12 ml. per day.

Conclusion

Someone will say that this is not a lot, and relatively speaking they will be right. And if you consider that zero energy and effort were spent to produce this amount, then this is a lot.The idea is quite workable, and a countless number of such devices can be built, especially considering their cheap manufacturing cost.