The Solar film - coating of flat solar panels

The sun is the largest source of energy for the Earth and its radiation can have many applications. One of these is the use of the sun for preparing hot water in households, which greatly reduces the cost of electricity or gas. This is possible thanks to the use of solar films, which are technology to capture solar radiation and converting into heat and warms the water for example. Flat solar panels with a quality solar film coating to reduce heat loss. Flat manifold due to its affordable price is the most commonly used type of solar collector for water heating by solar radiation. The design of the collector box includes insulated aluminum profile with integrated absorber, insulation and heat-resistant toughened glass having high properties of permeability and retention of the solar radiation.

The flat panel collectors with a solar film coating can be categorized depending on the technology of the panel or its location, as well as ways to transfer heat transfer fluid. Depending on the type of the collector (the panel), they may be open or closed-cycle, and passive and active, and each of them has advantages and disadvantages. What solar collectors to choose depends on personal needs, budget and location? Flat solar collectors of solar film, typically consist of a large flat plate (especially a sheet of copper or aluminum, since they are very good conductors of heat), which is chemically etched or painted in black so that the utmost to absorb solar radiation. On the black plate has parallel copper pipes called risers, which is the heat transfer liquid (usually water or antifreeze). Such as copper pipes are glued, soldered or welded to the steel plate so as to maximize the contact area for the transfer of the temperature. When the plate is heated, it transfers the heat to the risers and the scrubbing liquid flow in copper pipes and so household water warms.

 The absorber pipes of solar panels with a thin solar film are enclosed in lightweight insulated metal or wooden box, the upper part is transparent (used materials such as tempered glass or different types of plastics). The purpose of this box is to prevent the absorber and the pipes, and also it is insulated to keep the heat of the absorber and the pipes. The transparent layer does not reflect the sun's rays, so that the radiation to be absorbed to a greater extent than the absorber. The air space between the metal plate and the glass on the box prevents the heat is lost to the atmosphere, but heat losses are obtained, however because of the heat of the actual air space. The systems that use flat panel solar collectors solar film for heat transfer can be passive and active. In order to warm water can be used both day and night, it should be stored in an insulated tank. This tank can be connected directly to the panels, and are arranged in one of the rooms of the house, such as the movement of water between it and the panels are made ​​using a pump. The main disadvantage of flat panel solar collectors film is thought to be high-efficiency solar rays fall below 90 degrees or as close to orthogonal. Because of this they lose significantly on their ability to heat water during the winter months when the sun shines on the earth at a slight angle.

 On the whole the flat panel collectors with a thin solar film are very good solution for households taking into account their contribution to ecology. If you and your family in any way you could contribute to the preservation of our planet's resources the flat panel collectors are a very good decision.