In some cases, when creating the entire solar battery system, it is possible to do without installing a storage tank. This is possible when hot water is used only during the day and in small quantities. For example, a circuit of 150 m of pipe with an internal diameter of 16 mm holds 30 liters of water. And if five or six of these "snails" of pipes are assembled into a single battery, then each family member can take a shower several times during the day, and there will still be plenty of hot water left for household needs.
To make such a solar water collector, you need to prepare some materials. It is not at all excluded that some of them can be found in a shed or garage.
A rubber hose or flexible plastic pipe of black color, with a diameter of 20 ÷ 25 mm - this is essentially the main element of the system, in which heat exchange will occur during water circulation. The amount of hose will depend on the size of the solar battery - it can be 100 or 1000 meters. Black color of the hose is preferable kazakhstan mobile database it absorbs heat more than all other shades.
It should be noted right away that metal-plastic pipes are not particularly suitable for making a collector, even if they are coated with black paint. The fact is that their plasticity in this case is insufficient - they break when bending a small radius and thus, even if the integrity of the walls is not violated, the intensity of the water flow will decrease.
Hoses are sold in coils of 50, 100 or 200 meters. If you plan to make a large-volume battery, you will have to buy several coils. In the event that you plan to use, for example, 50 or 100 m of hose in each section, you should not buy a whole 200-meter coil; it is better to buy a ready-made measured hose. This will help save time during installation.
The hose can be laid not only in a round spiral, but also in an oval form, as well as in the form of a serpentine.
As a good alternative, you can try modern pipes made of cross-linked polyethylene PEH. They have good plasticity, and it is not difficult to figure out how to give them a black color if it is not available for sale.