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Termocasa

NOT ALL SOLAR PANELS ARE PROUDLY MANUFACTURED IN ROMANIA!

What are the best performing solar panels?

  1. Solar panels with Direct absorption they are the most efficient due to the fact that they do not have intermediate elements between the thermal energy captured from solar radiation and glycol, so their guarantee is usually 25 years. In general, solar panels in the boiler produce hot water at 65-70 degrees, and those with Direct Absorption have the disadvantage that they cannot exceed 60-65 degrees, being thermally protected. Pressurized solar panels with Direct Absorption and applied insulated mirror can operate at unmatched performance even in spring or autumn.
  2. Solar panels with U-tubes they follow those with direct absorption, due to the fact that their yield is somewhat weaker due to the existence of a two heat exchangers (between the glass and the aluminum fin and between the collector and the aluminum fin). The big disadvantage of U-Pipe panels is the very high price as well as their construction with only 10 or 12 tubes, being panels that cannot be assembled or disassembled, making assembly and transport very difficult.
  3. Solar panels with Heat Pipe they follow those with U-Pipe, due to the fact that their efficiency is somewhat lower due to the existence of three heat exchangers (between the glass and the aluminum fin, between the heat pipe and the aluminum fin and between the heat pipe and the collector). The big disadvantage of Heat Pipe panels is that the Pipe inside the glass tube gets perforated relatively quickly (between 1 and 5 years) depending on the customer's operating mode, and these Pipes do not fit from a panel to another and thus the entire panel is replaced.
  4. Solar panels Vacuumed and insulated planes they follow those with Heat Pipes, due to the somewhat weaker yield due to the fact that solar radiation is not collected according to the incidence of the sun's rays but only at noon when the radiation is perpendicular, and during the rest of the day the capture is much less compared to the panels solar with tubes, where the cylindrical shape of the tube allows the capture of solar radiation throughout the day uniformly. The main disadvantages are the purchase cost which can be almost double compared to the rest of the solar panels compared to the same performances as well as the fact that if the outer glass cracks, it cannot be replaced in 90% of cases.
  5. Solar panels Planes without Vacuum and non-insulated are followed by Flat Vacuumed and insulated panels, due to the slightly lower efficiency due to the fact that they lose a lot of energy being non-insulated and having a non-vacuum interior, thus humidity penetrates inside, and this facilitates heat loss to the outside. The main disadvantage is the lowest yield as well as the fact that spring and autumn become practically useless.

Why choose solar panels with Direct Absorption brand Termocasa?

  • Direct absorption pressurized solar panels brand Termocasa are multiple awarded both in Romania and internationally due to the multiple innovations present in their composition.
  • Solar panels with Direct Absorption pressurized brand Termocasa are the only panels that benefit from 25 years WARRANTY.
  • Solar panels with Direct Absorption brand Termocasa are the only pressurized collector solar panels that capture solar radiation directly without the need to fit heat exchangers like other solar panel models on the market and are pressurized at low pressure to stop glycol evaporation during operation .
  • Direct absorption pressurized solar panels brand Termocasa they are very easy to install and are protected against overheating by an innovative electronic and electromechanical safety system.

Why offer Termocasa 25 years GUARANTEE for Direct Absorption solar panels?

Group of companies Termocasa together with specialist engineers, he started installing and testing Direct Absorption solar panels more than 10 years ago. Thus, we were able to evaluate through measurements and endurance tests the properties of the materials from which the Direct Absorption solar panel is made, and we came to the conclusion that we can ensure this 25-year warranty period as well as a practically unlimited exploitation period due to the lack of elements that it is detailed over time.

SOLAR PANELS TERMOCASA – PRESSURIZED DIRECT ABSORPTION WITH CPC INSULATED MIRROR
(ABSOLUTE NEW ON THE ROMANIAN MARKET)

Solar panels Termocasa equipped with the new pressurized direct absorption technology, they produce the thermal energy necessary for the production of domestic hot water and the preparation of the thermal agent used for heating homes, public institutions, companies, as well as for heating swimming pools.

The main advantage of the new solar panels Termocasa with direct absorption is the fact that the hot glycol comes into direct contact with the glass tubes, and the heat transfer is maximum compared to the heat pipe panels, where the heat transfer is done through several heat exchangers (the glass tube gives up heat to the fins of aluminum which in turn gives off heat to the heat pipe, and then the heat is given off to the collector where the glycol is located).

Due to the lack of elements that can be damaged, solar panels Termocasa with direct absorption benefits from a 25-year warranty that can be extended depending on the policy of each distributor.

The efficiency of solar panels Termocasa with direct absorption is up to 30% higher than heat pipe panels and up to 50% higher than flat panels.

Solar panels Termocasa equipped with the new direct absorption technology, pressurized and CPC insulated mirror, represent the cutting edge of technology and the latest inventions and innovations in the field of solar panels. The CPC insulated mirror layer is applied directly to the back of the outer glass tube and helps to recover solar radiation from the sides of the inner tube, which is normally lost, and stop heat loss through the shaded surface of the glass tube (the back of the tube). During the summer, by simply twisting the tubes, the operation of the solar panel can be reduced or stopped by the shading provided by the CPC insulated mirror, which is oriented towards the sun.

The advantages over the rest of the solutions on the market are:

  • By attaching the CPC insulating mirror directly to the glass tube, it no longer allows the deposition of dust and impurities on the surface of the mirror, dust and impurities that block solar radiation.
  • By attaching the CPC insulating mirror directly to the outer glass tube and not to the inner one, it allows the blocking of heat losses through the shaded surface of the glass tube (the back of the tube).
  • Extremely simple assembly allows the installation of solar panels Termocasa with direct absorption by any installer.
  • The expansion vessel ensures the condensation of the superheated glycol and its reintroduction into the circuit, eliminating the risk of evaporation.

These types of solar panels, together with a solar boiler and an automation station, create a complex solar system that works all year round (regardless of the temperature of the external environment). Solar system Termocasa it can be connected with any type of thermal installation that exists in the building.

The constructive variants are:

  • 18 tubes, product code TMC18 1,55m X 1,85m
  • 25 tubes, product code TMC25 2,15m X 1,85m
  • 30 tubes, product code TMC30 2,55m X 1,85m

Solar panel Termocasa is composed of:

  • Vacuum glass tubes;
  • Horizontal heat collector;
  • Fixing support in duralumin/stainless steel;
  • Expansion tank;
  • Fixing elements, accessories, screws, nuts, silicone gasket and rubber, etc.;
  • The glass tubes have a double-walled, thermos-type construction, with a vacuum level between the glass walls of 5×10-3 bar.

The outer tube has a diameter of 47/58 mm and a length of 1500/1800 mm.

The glass tube inside is covered with two selective layers, one layer is of the Al-N-Al type which has the role of increasing the absorption level of infrared radiation from the visible range of solar radiation, up to the value of 95%. The second layer has the role of refracting the thermal radiation inside the tube to be taken over by the thermal agent and thus produce up to 810kw/h/mXNUMX/year.

The glass used to manufacture the tubes is 3.3 borisilicate, being resistant to hail up to 5cm.

The glass tubes have a very important role regarding the operation of the solar panel Termocasa, they perform the following functions:

  • absorb infrared radiation from the visible range of sunlight;
  • it refracts the thermal radiation towards the inside of the glass tube until it is taken over by the thermal agent;
  • isolates very well the thermal absorption system of infrared radiation from the external environment.

Inside the glass tubes, the thermal agent that receives the solar thermal radiation, transforms it into thermal energy even if the sky is covered by clouds.

The placement position of the evacuated glass tubes on the support of the solar panels Termocasa it is always vertically inclined, which gives it a high resistance to hail impact, and on the other hand, the heat agent with the highest temperature is continuously directed to the top due to the thermosiphon phenomenon, heating the heat agent in the heat collector.

Heat collector Termocasa it is made of stainless steel and has the role of receiving the thermal energy produced by the tubes of the solar panel. The collector housing is 2mm thick and is made of stainless steel resistant to the harsh conditions imposed by the external environment. Thermal insulation of the heat collector Termocasa it is made of high-density polyurethane with a thickness of 50-60mm, insulation which, in addition to having the lowest heat transfer coefficient with the outside, also has the role of increasing the mechanical resistance of the equipment.

Due to the high capacity of the heat collector, direct absorption panel systems have very low hydraulic losses, thus they can be sized in groups of up to 200 tubes/installation and are not limited to 120 tubes/installation as in the case of panels with heat pipe.

The inlet and outlet of the heat exchanger is made of pipe with a diameter of 22/28mm. The connection with the external equipment is done by means of a removable elastic connector, it takes over the expansion and displacement due to the expansion.

The support of the solar panel is made of duralumin/stainless steel U-type profiles that give it mechanical resistance and resistance to corrosion. The thickness of the profile, the shape, the structure and the method of fixing give the solar panel Termocasa stability in difficult atmospheric conditions (strong wind, deposition of a thick layer of snow, etc.).

The angle of inclination of the support can be 20° - 90°.

Solar panel Termocasa it works all year round, regardless of the temperature of the outside environment. There is no danger of freezing during operation because glycol is used in the solar system circuit, which can withstand extremely low temperatures. To reduce heat loss on the connecting pipes, they are insulated with materials resistant to high temperatures.

Solar panels Termocasa respects all the requirements imposed by national and international legislation, as well as the conditions imposed by environmental standards. Using solar panels Termocasa on each building, fuel consumption is reduced and significant amounts of emissions of polluting substances in the atmosphere, especially CO², are not eliminated.

Comparative test between Direct Absorption and Heat pipe panels
Presentation of solar panels Termocasa with direct absorption

Design by Adrian Farcaş
Romanian top level engineering


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