“Thermoindustria” in a wide range of products recently added a solar energy system of the Turkish brand OGES. Since 1985, OGES has been actively cooperating in the international market and the profile of this brand is associated with solar energy.
Let’s consider briefly, but more or less exhaustively about solar energy and reservoirs.
Solar energy, like of wind, belongs to renewable energy resources.
The transformation of solar energy is possible, both in electrical and thermal energy. In order to obtain heat energy with high efficiency, you need a direct sun beam. The air temperature does not matter. High efficiency (efficiency) can be obtained in winter – even with the weather -35⁰C, if the weather is sunny.
Solar collectors are of two traditional types – flat and flask-shaped (vacuum).
Flat – panel collector
Flat – panel collectors consist of glass heat-insulating elements that absorb the radiation of the sun. The principle of operation of flat panel collectors is similar to the effect of a greenhouse. Solar energy is collected in the collector, the coolant, usually water, or antifreeze. In sunny weather, the coolant, if heat transfer does not occur, can be heated to 140-160 degrees.
Typically, one collector, the standard area of which is 2 square meters. meter, taking into account ΔT = 30⁰C for 1 hour, will heat 65-70 liters of water. That is, the heat output of one panel at the maximum efficiency is 2000 kcal / h.
In vacuum collectors, the space in which the dark surface is located is separated from the environment. The vacuum is formed precisely in this space. Based on this, heat loss is virtually eliminated. Due to the selective coating, the losses are completely suppressed. Insofar the loss factor is miserable, the absorption of solar radiation and the accumulation of thermal energy are maximum.
Vacuum collectors are arranged on a thermos principle, the cylinder in a cylinder. The existing vacuum between them provides complete insulation. The advantage of reservoirs of this type is manifested when the temperature of the outside air is less than minus 15 ° C. In winter, vacuum collectors have no alternative.
The performance of the vacuum 24-bulb 170 + 65 liters solar collectors OGES in sunny weather is 320-450 liters per hour and 30-bulb 200 + 65 liters solar collectors – 390-520 liters per hour.
When installing solar collectors, several important factors need to be considered: the collector, with its plane, should face south, and with respect to the horizontal surface (taking into account the geographic location of Georgia, 40-42⁰ north latitude), the inclination angle of the collector should be 43-45⁰. It is not necessary to install it on the roof, the main thing is to find a place where the shadow will not fall on the collector.
The use of heat-converting solar systems is possible to produce hot water, and also as an auxiliary component of the heating system. They can also be used for heating swimming pool water.
It is important to know that solar energy can not be considered the main means of heating or hot water supply. It is only an auxiliary tool, since its effectiveness depends on the direct rays of the sun and the number of sunny days.